JP5489148B2 - Ultrasonic diagnostic equipment - Google Patents

Description

  The present invention relates to an ultrasonic diagnostic apparatus that displays an ultrasonic image when performing ablation treatment using radio waves.

  A puncture needle is inserted into an affected area such as a tumor in a subject, and a radio wave is emitted from the puncture needle to cauterize the affected area. When performing such radiofrequency ablation treatment, there is a case where the puncture needle is inserted into the affected area of the subject while observing an ultrasonic image of the affected area with an ultrasonic diagnostic apparatus to perform radiofrequency ablation treatment (for example, , See Patent Document 1). In this case, a puncture guideline indicating a puncture route of the puncture needle is displayed on the ultrasonic image, and the puncture needle is inserted along the puncture guideline.

  In performing radiofrequency ablation treatment, the size of the affected area is measured in advance, and the ablation range is determined based on the size. Here, the portion cauterized by the radio wave is not cauterized uniformly, and the portion near the outer edge in the cautery range may have a lower cauterization degree. Therefore, the cautery range is set slightly larger than the affected area.

The range that can be cauterized by the puncture needle is determined by the type of puncture needle. Therefore, a person who performs treatment selects a puncture needle corresponding to the ablation range determined based on the size of the affected area, and performs ablation treatment.
Japanese Patent Laid-Open No. 2007-135988

  Here, if a relatively thick blood vessel is in the cauterization range, it cannot be cauterized sufficiently, and the blood vessel is damaged by the cauterization, which is not preferable. Therefore, in order to confirm whether or not there is any undesired tissue in the cauterization range, such as blood vessels, in the ablation range, it has become desirable to visually confirm the ablation range on the ultrasound image. Yes.

  Further, in the case of cauterization treatment, it is desirable that the cauterization range of the part other than the affected part be as small as possible. For example, when the ablation range extends around the tip of the puncture needle, it is necessary to insert the puncture needle near the center of the affected area in order to make the ablation range of the part other than the affected area as small as possible. However, depending on the position of the affected area, the blood vessel or the like may obstruct the area where the puncture needle can be inserted, and the puncture needle may not be inserted near the center of the affected area. In such a case, in order to make the cauterization range of the part other than the affected part as small as possible, the entire affected part is not cauterized by one cauterization treatment, but a relatively small range is set and cauterized in several times. It will be. When such treatment is performed, it is necessary to make a treatment plan as to how many cauterizations are necessary in order to cauterize the entire affected area. In making a treatment plan, it is easier to make a plan if the ablation range can be visually confirmed on the ultrasound image.

  The present invention has been made in view of such circumstances, and the problem to be solved is to provide an ultrasonic diagnostic apparatus capable of easily setting a display indicating an ablation range by radio waves. is there.

  The present invention has been made in order to solve the above-described problems. The invention of the first aspect includes an ablation range input unit for inputting information on an ablation range by radio waves in an ultrasonic image, and radiation of radio waves. An ultrasonic radiofrequency ablation display including a path display setting unit for displaying a path display indicating the insertion path of the puncture needle to be performed on an ultrasonic image, and an ablation range display indicating the ablation range input by the ablation range input unit. A radiofrequency ablation display setting unit that displays the image on the image and moves the radiofrequency ablation display along the route display, and the radiofrequency ablation display setting unit moves the radiofrequency ablation display so that an input by an operator is performed. A position change instructing unit that outputs the position change information to the radiofrequency ablation display setting unit.

  According to a second aspect of the invention, in the first aspect of the invention, the route display is a straight puncture guideline, and the ablation range display is a circle, an ellipse, or a polygon that is symmetrical with respect to the puncture guideline. This is an ultrasonic diagnostic apparatus.

  According to a third aspect of the invention, in the invention of the second aspect, the radiofrequency ablation display setting unit displays a needlepoint alignment display for aligning the needlepoint of the puncture needle as part of the radiofrequency ablation display. An ultrasonic diagnostic apparatus that displays on the puncture guideline.

  The invention of the fourth aspect is characterized in that in the inventions of the first to third aspects, there is provided an ablation object display setting unit for displaying an ablation object display indicating an ablation object by radio waves on an ultrasound image. It is a diagnostic device.

  The fifth aspect of the invention is the invention of the fourth aspect, wherein the radiofrequency ablation display setting unit includes the ablation object display setting unit, and the ablation object display is a part of the radiofrequency ablation display. The ultrasonic diagnostic apparatus is characterized by being displayed as:

  The invention of the sixth aspect is the calculation of calculating the distance between the ablation object display displayed in the portion surrounded by the ablation range display and the ablation range display in the inventions of the fourth and fifth aspects. An ultrasonic diagnostic apparatus comprising a unit.

  According to a seventh aspect of the invention based on the sixth aspect of the invention, the calculation unit calculates a maximum value and a minimum value of a distance between the ablation object display and the ablation range display. This is a sonic diagnostic apparatus.

The invention according to an eighth aspect is the calculation according to any one of the first to seventh aspects, wherein the area of the portion surrounded by the ablation range display or the volume of the ablation range is calculated based on the ablation range display. An ultrasonic diagnostic apparatus comprising a unit.

  The invention of the ninth aspect is the invention of any one of the first to eighth aspects, wherein the area of the portion surrounded by the ablation object display or the volume of the ablation object is calculated based on the ablation object display. An ultrasonic diagnostic apparatus comprising a calculation unit.

  The invention of the tenth aspect is the invention of any one of the first to ninth aspects, wherein the area of the portion surrounded by the ablation object display and the ablation range based on the ablation object display or the ablation range display An ultrasonic diagnostic apparatus comprising: a calculating unit that calculates a difference between an area of a portion surrounded by a display or a difference between a volume of an ablation target and a volume of an ablation range.

  The invention of the eleventh aspect is the invention according to any one of the first to tenth aspects, wherein an influence range display is displayed on the outside of the ablation range, and an influence range display indicating the range of influence exerted on the tissue near the affected area by the ablation. An ultrasonic diagnostic apparatus comprising a display setting unit.

  The invention according to a twelfth aspect is the invention according to any one of the first to eleventh aspects, wherein the route display setting unit and the radiofrequency ablation display setting unit display a plurality of the route display and the radiofrequency ablation display. This is an ultrasonic diagnostic apparatus.

  According to the first aspect of the invention, when information on the ablation range is input by the ablation range input unit, the radiofrequency ablation display including the ablation range display indicating the input ablation range is set to the radiofrequency ablation display setting. Displayed on the ultrasound image by the unit. Then, the operator changes the position change instruction unit while viewing the ultrasonic image so as to move the radiofrequency ablation display so that the position of the ablation range display becomes an appropriate ablation range on the ultrasonic image. When operated, position change information of the radiofrequency ablation display is output from the position change instruction unit to the radiofrequency ablation display setting unit, and the radiofrequency ablation display setting unit displays the radiofrequency ablation display on the ultrasonic image. Is moved along the route display. Here, since the route display is a display showing the insertion route of the puncture needle, the ablation range is always located near the route display. Therefore, by setting the radiofrequency ablation display setting unit to move the radiofrequency ablation display along the path display, the ablation range display can be set to a desired position without wasteful movement. Can do.

  As described above, when the cautery range information is input by the cautery range input unit, the radiofrequency ablation display including the cautery range display corresponding to the input information is automatically displayed, and the radiofrequency ablation display is routed. Since it is set to a desired position by moving along the display, it is possible to easily set the display indicating the ablation range.

  According to the invention of the second aspect, it is possible to display the ablation range corresponding to how the radio wave spreads from the puncture needle.

  According to the invention of the third aspect, since the needle tip alignment display is displayed on the puncture guideline, the person performing the puncture, the needlepoint of the puncture needle inserted along the puncture guideline, By aligning the needle tip alignment display, the puncture needle can be easily positioned when the radio wave is emitted.

  According to the fourth and fifth aspects of the invention, the ablation object display is displayed, so that the ablation object can be easily visually recognized.

  According to the sixth aspect of the invention, since the distance between the ablation object display and the ablation range display is calculated by the calculation unit, how large the ablation range display is set with respect to the ablation object. Can be easily confirmed.

  According to the seventh aspect of the invention, since the maximum value and the minimum value of the distance between the ablation object display and the ablation range display are calculated by the calculation unit, it is easy to set the position of the ablation range display. It can be carried out.

  According to the eighth aspect of the invention, the area or volume of the ablation range can be calculated.

  According to the ninth aspect of the invention, the area or volume of the ablation object can be calculated.

  According to the tenth aspect of the invention, the difference between the area of the part surrounded by the ablation object display and the area of the part surrounded by the ablation range display, or the difference between the volume of the ablation object and the volume of the ablation range Therefore, it can be easily confirmed how large the ablation range display is set for the ablation object.

  According to the eleventh aspect of the invention, it is possible to easily visually recognize the range of influence exerted on the tissue in the vicinity of the affected part by cauterization.

  According to the invention of the twelfth aspect, since a plurality of the route display and the ablation range display are displayed, how much ablation is required to cauterize the entire affected part when performing radiofrequency ablation in multiple times. It can make it easier to make a treatment plan for how many times it is necessary to cauterize the area.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
First, a first embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the ultrasonic diagnostic apparatus according to the first embodiment of the present invention, and FIG. 2 is a block diagram showing an example of the configuration of the display setting unit of the ultrasonic diagnostic apparatus shown in FIG. is there.

  An ultrasonic diagnostic apparatus 1 shown in FIG. 1 transmits an ultrasonic wave by sending an ultrasonic probe 2 that transmits / receives ultrasonic waves, a drive signal to the ultrasonic probe 2, and the ultrasonic probe. A transmitter / receiver 3 that receives an echo signal received by the touch element 2, a signal processor 4 that generates ultrasonic sound ray data based on a received signal in the transmitter / receiver 3, and an ultrasonic signal from the signal processor 4 An image display device 6 such as a DSC (Digital Scan Converter) 5 that generates ultrasonic image data based on the sound wave data and a CRT (Cathode Ray Tube) that displays an image of the image data generated by the DSC 5; It has.

  The ultrasonic diagnostic apparatus 1 further includes an additional information processing unit 7 and an operation unit 8. The additional information processing unit 7 has a display setting unit 71 for displaying additional information on an ultrasonic image. In this example, additional information to be displayed on the ultrasonic image includes a linear puncture guideline 9 (see FIG. 3) indicating a puncture route of a puncture needle N (see FIGS. 3 and 8) that emits a radio wave, which will be described later, and a radio It is a wave shochu display 10 (refer FIG. 3). The display setting unit 71 includes a guideline setting unit 711 for displaying the puncture guideline 9 and a radiofrequency ablation display setting unit 712 for displaying the radiofrequency ablation display 10.

  The guideline setting unit 711 displays the puncture guideline 9 having a broken line shape at a predetermined position on the ultrasonic image. This puncture guideline 9 is an example of an embodiment of a route display in the present invention, and the guideline setting unit 711 is an example of an embodiment of a route display setting unit in the present invention.

  The radiofrequency ablation display 10 is formed of an ablation range display 11 indicating the ablation range and a needle tip alignment display 12 for aligning the needle tip of the puncture needle N. The radiofrequency ablation display setting unit 712 displays the ablation range display 11 and the needle tip alignment display 12 as a radiofrequency ablation display 10.

  In this example, the radiofrequency ablation display setting unit 712 has a range setting unit 7121, and the range setting unit 7121 displays the range display 11 and the needle tip alignment display 12 on the image display device 6. It is supposed to let you.

  The needle tip alignment display 12 is displayed on the puncture guideline 9. The positional relationship between the needle tip alignment display 12 and the ablation range display 11 is such that the ablation range display 11 is positioned within the ablation range when the needle tip of the puncture needle N is aligned with the needle tip alignment display 12. It has become a positional relationship.

  Here, the shape and size of the ablation range and the positional relationship of the ablation range with respect to the puncture needle N vary depending on the type of the puncture needle N. Therefore, the form and size of the radiofrequency ablation display 10 are set according to the type of the puncture needle N.

  The setting and display of the radiofrequency ablation display 10 will be described. The ultrasonic diagnostic apparatus 1 has a storage unit (not shown) in which a plurality of forms of the radiofrequency ablation display 10 are stored. Here, the form of the radiofrequency ablation display 10 means the shape of the ablation range display 11 and the position of the needle tip alignment display 12 with respect to the ablation range display 11, and the ablation range display 11 having a predetermined shape and the ablation range display 11 A plurality of radiofrequency ablation displays 10 including a needle alignment display 12 arranged at a predetermined position with respect to the display 11 are stored. When the form of the radiofrequency ablation display 10 is selected by the input unit 13 to be described later and the size of the ablation range display 11 is input, the range setting unit 7121 receives the radiofrequency ablation of the input form. The display 10 is read from the storage unit, and the ablation range display 11 of the read radiofrequency ablation display 10 is set to the input size, and then the radiofrequency ablation display 10 is displayed on the image display device 6.

  An example of the form of the radiofrequency ablation display 10 will be described with reference to FIG. FIG. 3 is a diagram showing an ultrasonic image G displayed on the image display device 6. When the ablation range is a circle centered on the needle tip of the puncture needle N, the ablation range display 11 is a circle centered on the needle tip alignment display 12 as shown in FIG. A radiofrequency ablation display 10 having the following form is selected. In the radiofrequency ablation display 10 in this case, the needle tip alignment display 12 is the center of the ablation range. Further, when the ablation range is a circle but the center thereof is not the needle tip of the puncture needle N, but is closer to the root than the needle tip (opposite to the insertion direction of the puncture needle N), FIG. As shown in (B), the ablation range display 11 is a circle, and the needle tip alignment display 12 is inserted into the puncture guideline 9 with respect to the center of the ablation range display 11. A radiofrequency ablation display 10 having a form shifted in the direction is selected. Further, when the ablation range is an ellipse and the ellipse extends in the insertion direction from the vicinity of the needle tip of the puncture needle N, the ablation range display 11 is an ellipse as shown in FIG. The radiofrequency ablation display 10 having a form in which the needle tip alignment display 12 is located on the long axis of the ellipse (coincident with the puncture guideline 9) is opposite to the insertion direction of the puncture needle N is selected. The

  Here, in any case, the ablation range display 11 is a figure that is symmetrical with respect to the puncture guideline 9. This assumes that the cautery range extends symmetrically with respect to the puncture needle N.

  The operation unit 8 includes an input unit 13 such as a keyboard and a pointing device 14 such as a mouse and a trackball. The operation unit 8 is connected to the additional information processing unit 7 so that input signals from the input unit 13 and the pointing device are output to the additional information processing unit 7.

  The input unit 13 is configured to input a range to be cauterized by radio waves, that is, information on the cauterized range. In this example, the input of the form of the radiofrequency ablation display 10 and the size of the ablation range display 11 are performed as input of the ablation range information by the input unit 13. The input unit 13 is an example of an embodiment of an ablation range input unit in the present invention.

  The input of the form of the radiofrequency ablation display 10 is performed by selecting the radiofrequency ablation display 10 assigned to each key of the input unit 13 by performing a key operation. Alternatively, the input in the form of the radiofrequency ablation display 10 may be performed by selecting a list displayed on an operation panel (not shown) on the operation panel.

  In addition, as the size of the ablation range display 11, the size of the ablation range determined according to the size of the tumor measured in advance is numerically input by the input unit 13.

  Then, when the display form of the radiofrequency ablation display 10 and the size of the ablation range display 11 are input, and the operation of displaying the radiofrequency ablation display 10 by the input unit 13 is performed, the range setting is performed. The radio wave ablation display 10 is displayed on the image display device 6 by the unit 7121.

  When the pointing device 14 is operated, position change information for moving the radiofrequency ablation display 10 is input to the radiofrequency ablation display setting unit 712. The radiofrequency ablation display setting unit 712 sets the radiofrequency ablation display 10 in which the ablation range display 11 and the needle tip alignment display 12 are integrated to a position corresponding to the position change information input from the pointing device 14. Move and display. At this time, the radiofrequency ablation display setting unit 712 moves the radiofrequency ablation display 10 so that the needle tip alignment display 12 moves on the puncture guideline 9. The pointing device 14 is an example of an embodiment of a position change instruction unit in the present invention.

  The needle tip alignment display 12 moves on the puncture guideline 9, and the ablation range display 11 moves only in a direction along the puncture guideline 9. Here, since the puncture guideline 9 is a display indicating the puncture route of the puncture needle N, the ablation range is always located near the puncture guideline 9. Therefore, by moving the ablation range display 11 only in the direction along the puncture guideline 9, useless movement of the ablation range display 11 is prevented, and the ablation range display 11 is set earlier. Be able to.

  Now, the operation of the ultrasonic diagnostic apparatus 1 when performing radiofrequency ablation treatment will be described. FIG. 4 is a flowchart showing an example of the operation of the ultrasonic diagnostic apparatus 1 of the first embodiment.

  First, in step S <b> 1, an ultrasonic image is generated by transmitting and receiving ultrasonic waves by the ultrasonic probe 2 and displayed on the image display device 6. In step S2, the operator extracts the target cross section while viewing the ultrasonic image displayed on the image display device 6, operates the operation unit 8, and performs ultrasonic waves as shown in FIG. The puncture guideline 9 is displayed on the image G. The position of the puncture guideline 9 on the ultrasound image G is fixed, and the operator moves the ultrasound probe 2 so that the puncture guideline 9 is at an optimum position with respect to the tumor X. In this example, the puncture guideline 9 is displayed so as to pass through the center of the tumor X.

  Next, in step S3, in order to display the radiofrequency ablation display 10, the operator selects a display form of the radiofrequency ablation display 10 by the input unit 13 according to the type of the puncture needle N used for cauterization. Here, a case where the radiofrequency ablation display 10 in which the ablation range display 11 is a circle centered on the needle tip alignment display 12 is selected will be described. In this case, the operator inputs the diameter of the cautery range display 11 as a numerical value by the input unit 13 as the size of the cautery range display 11. The size of the ablation range display 11 is set according to the type of puncture needle N used for ablation determined by a doctor or the like based on the size of the tumor X to be ablated. Then, when the operator operates the input unit 13 to display the radiofrequency ablation display 10, as shown in FIG. 6, the needlepoint alignment display 12 and the needlepoint are displayed as the radiofrequency ablation display 10. The ablation range display 11 having the input diameter centered on the alignment display 12 is displayed.

  Next, in step S4, the operator operates the pointing device 14 to move the radiofrequency ablation display 10 so that the ablation range display 11 is positioned in an appropriate ablation range. At this time, the cautery range display 11 and the needle tip alignment display 12 move together. The needle tip alignment display 12 moves on the puncture guideline 9, and the ablation range display 11 moves along the puncture guideline 9. In this example, the operator operates the pointing device 14 so that the needle tip alignment display 12 is at the center of the tumor X as shown in FIG. To move.

  When the position setting of the radiofrequency ablation display 10 is completed as described above, the operator inserts the puncture needle N along the puncture guideline 9 as shown in FIG. Stop when the needle tip is aligned with the needle tip alignment display 12. Then, radio waves are emitted from the puncture needle N to perform ablation treatment.

  As described above, according to the ultrasonic diagnostic apparatus 1 of this example, when the form of the radiofrequency ablation display 10 and the size of the ablation range display 11 are input as the ablation range information by the input unit 13. Since the radiofrequency ablation display 10 corresponding to this input information is automatically displayed, and the ablation range display 11 is moved along the route display, it is set at a desired position. The ablation range display 11 can be easily set.

  Next, a modification of the first embodiment will be described with reference to FIG. FIG. 9 is a diagram showing an ultrasonic image G in a modification of the first embodiment. In this modification, two puncture guidelines 9 and two radiofrequency ablation displays 10 are displayed at the same time. This modification is an example in which the range in which a puncture needle (not shown in FIG. 9) can be inserted is limited, and the puncture guideline 9 does not pass near the center of the tumor X and is cauterized in two steps. . In this way, a plurality of radiofrequency ablation displays 10 are displayed, so that in order to cauterize the entire tumor X, how many ablations are required and how many times it is necessary to ablate. Can be made easier.

(Second embodiment)
Next, a second embodiment of the present invention will be described. FIG. 10 is a block diagram showing a configuration of an ultrasonic diagnostic apparatus according to the second embodiment of the present invention, and FIG. 11 is a block diagram showing an example of a configuration of a display setting unit of the ultrasonic diagnostic apparatus shown in FIG. . 10 and 11, the same components as those in the first embodiment are denoted by the same reference numerals, and the configurations different from those in the first embodiment will be described below.

  In the ultrasonic diagnostic apparatus 20 illustrated in FIG. 10, the additional information processing unit 7 includes a distance calculation unit 72 and a calculated value display setting unit 73 in addition to the display setting unit 71. Further, the radiofrequency ablation display setting unit 712 of the display setting unit 71 includes an ablation object display setting unit 7122 in addition to the range setting unit 7121 as shown in FIG.

    In this example, as shown in FIG. 12, on the ultrasonic image G, in addition to the ablation range display 11 and the needle tip alignment display 12 as the radiofrequency ablation display 10, the ablation object display setting unit 7122 cauterizes the ablation. A target display 21 is displayed. The ablation object display 21 indicates an ablation object by radio waves, and is displayed in the ablation range display 11. In this example, this ablation object display 21 is for showing the tumor X, is a circle centered on the needle tip alignment display 12, and has the same diameter as the diameter of the tumor X. The input unit 13 inputs the form of the radiofrequency ablation display 10 (the shape of the ablation range display 10 and the position of the needle tip alignment display 12 with respect to the ablation range display 10) and the diameter of the ablation range display 11. When the diameter of the ablation object display 21 is input, the ablation object display 21 displays the ablation object display 21 together with the ablation range display 11 and the needle alignment display 12. The image is displayed on the ultrasonic image G by the display setting unit 713.

  Also in this example, when the pointing device 14 is operated, position change information for moving the radiofrequency ablation display 10 is input to the radiofrequency ablation display setting unit 712. The radiofrequency ablation display setting unit 712 includes the ablation range display 11 and the needle tip alignment display 12 displayed by the range setting unit 7121, and the ablation target display 21 displayed by the ablation target display setting unit 7122. Is moved to a position corresponding to the position change information input from the pointing device 14 and displayed.

  The distance calculation unit 72 calculates the distance between the ablation object display 21 and the ablation range display 11. In this example, as the distance, the radius of the ablation range display 11 and the radius of the ablation object display 21 based on the diameter of the ablation range display 11 and the diameter of the ablation object display 21 input by the input unit 13. The difference is calculated. The calculated value is displayed on the ultrasonic image G as the calculated value display 22 by the calculated value display setting unit 73.

  The operation of the ultrasonic diagnostic apparatus 20 of this example will be described. The operation flow of the ultrasonic diagnostic apparatus 20 of this example is basically the same as that of the ultrasonic diagnostic apparatus 1 of the first embodiment, but when the radiofrequency ablation display 10 is displayed, the input unit 13 Input the form of the radiofrequency ablation display 10 (the shape of the ablation range display 10 and the position of the needle tip alignment display 12 with respect to the ablation range display 10), and the diameters of the ablation range display 11 and the ablation object display 21 Then, when an operation for displaying the radiofrequency ablation display 10 is performed, the radiofrequency ablation display 10 is input with the needlepoint alignment display 12 and the needlepoint alignment display 12 as the center, as shown in FIG. The concentric ablation range display 11 and the ablation object display 21 having the diameters displayed are displayed.

  When the diameter of the ablation range display 11 and the ablation target display 21 is input from the input unit 13, the distance calculation unit 72 calculates the difference between the radius of the ablation range display 11 and the radius of the ablation target display 21. To do. The calculated value display setting unit 73 displays the calculated value of the distance calculating unit 72 on the ultrasonic image G as the calculated value display 22.

  When the radiofrequency ablation display 10 is displayed on the ultrasonic image G, the operator operates the pointing device 14 so that the ablation range display 11, the needle tip alignment display 12, and the ablation object display 21 are integrated. The radio frequency ablation display 10 is moved. Then, as shown in FIG. 13, the radiofrequency ablation display 10 is moved so that the position of the ablation object display 21 is the position of the tumor X and the position of the ablation range display 11 is an appropriate ablation position. .

  Here, as the ablation object display 21, a circle having a diameter input by the input unit 13 is displayed, but the present invention is not limited to this. For example, the ablation object display 21 is initially displayed on the image display device 6 in a preset size and shape, and the operator looks at the tumor on the ultrasound image with the pointing device 14 or the like, and You may make it deform | transform the said ablation object display 21 according to a magnitude | size and a shape.

  According to the ultrasonic diagnostic apparatus 20 of the present example described above, the same effect as that of the first embodiment can be obtained, and the ablation target display 21 can easily visually recognize the tumor X that is an ablation target. In addition, since the distance between the ablation object display 21 and the ablation range display 11 is calculated, it can be easily confirmed how large the ablation range display 11 is set with respect to the tumor X. Thereby, it becomes easy to confirm whether or not the ablation range display 11 is set to a range in which the tumor X can be surely ablated.

  Next, a modification of the second embodiment will be described. FIG. 14 is a diagram showing an ultrasound image G in a modification of the second embodiment, and FIG. 15 is a block diagram showing a schematic configuration of the display setting unit 71 in the ultrasound diagnostic apparatus 20 in the modification of the second embodiment. is there.

  In this modified example, as shown in FIG. 14, the radiofrequency ablation display 10 on the ultrasonic image G includes the ablation range display 11, the needle tip alignment display 12, and the ablation target display 21, and a tumor caused by ablation. An influence range display 23 indicating the range of influences on the tissue near X is displayed. This influence range display 23 is a circle displayed outside the ablation range display 11 with the needle tip alignment display 12 as the center, and is concentric with the ablation range display 11 and the ablation object display 21.

  Here, the range of the influence of the cauterization on the tissue in the vicinity of the tumor X is a portion that spreads outside the cauterization range and is not cauterized, but becomes a burn-like state by the cauterization, and is actually cauterized. Similarly to the above, the luminance changes on the ultrasonic image (B-mode image).

  In this modification, the radiofrequency ablation display setting unit 712 includes an influence range display setting unit 7123 for displaying the influence range display 23 on the ultrasonic image G. The size of the influence range display 23 is determined by the size of the cautery range, and when the operator inputs the diameter of the influence range display 23 with the input unit 13 as a numerical value, the influence range display setting unit 7123 displays the influence range display 23 having the input diameter. The display of the influence range display 23 is performed simultaneously with the display of the ablation range display 11, the needle tip alignment display 12, and the ablation target display 21. That is, when the ablation range display 11, the diameter of the ablation object display 21, and the influence range display 23 are input and an operation for displaying the radiofrequency ablation display 10 is performed, the ablation range display 11, the needle tip alignment is performed. A radiofrequency ablation display 10 comprising a display 12, the ablation object display 21 and the influence range display 23 is displayed. By operating the pointing device 14, the radiofrequency ablation display 10 moves together with the ablation range display 11, the needle tip alignment display 12, the ablation target display 21, and the influence range display 23.

  According to the modification of the second embodiment described above, by displaying the influence range display 23, it is possible to easily visually recognize the range of the influence exerted on the tissue near the tumor X by cauterization.

(Third embodiment)
Next, a third embodiment of the present invention will be described. FIG. 16 is a block diagram showing the configuration of the ultrasonic diagnostic apparatus according to the third embodiment of the present invention, and FIG. 17 is a block diagram showing an example of the configuration of the display setting unit of the ultrasonic diagnostic apparatus shown in FIG. . 16 and 17, the same components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  The ultrasonic diagnostic apparatus 30 illustrated in FIG. 16 is the second embodiment in that the additional information processing unit 7 includes the display setting unit 71, the distance calculation unit 72, and the calculated value display setting unit 73. However, the configuration of the display setting unit 71 is different from that of the second embodiment. Specifically, as shown in FIG. 17, the display setting unit 71 includes the guideline setting unit 711 and the radiofrequency ablation display setting unit 712, and further includes an ablation target display setting unit 713. The ablation object display setting unit 713 displays an ablation object display 21 (described later). However, unlike the second embodiment, the ablation object display setting unit 713 is provided independently of the radiofrequency ablation display setting unit 712.

  In this example, the ablation object display 21 is a locus of a cursor (not shown) that is moved by operating the pointing device 14. As will be described later, when the operator moves the cursor along the outline of the tumor with the pointing device 14, the locus of the cursor is displayed as the ablation object display 21 (see FIG. 20). ).

  Here, in this example, the radiofrequency ablation display 10 is composed of the ablation range display 11 and the needle tip alignment display 12 as in the first embodiment, and the ablation object display 21 is the radio It is not included in the wave shochu display 10.

  The distance calculation unit 72 calculates the distance between the ablation range display 11 displayed on the image display device 6 and moved to the ablation position as will be described later, and the ablation target display 21 in this example. . Details will be described later.

  The operation of the ultrasonic diagnostic apparatus 30 of this example will be described. FIG. 18 is a flowchart showing an example of the operation of the ultrasonic diagnostic apparatus 30 according to the third embodiment of the present invention.

  Steps S10 and S11 are the same as steps S1 and S2 of the first and second embodiments. As shown in FIG. 19, after an ultrasonic image is displayed on the image display device 6, a target cross section is extracted. The puncture guideline 9 is displayed. Next, in step S12, as shown in FIG. 20, the pointing device 14 is operated, the outline of the tumor X is traced with a cursor (not shown), and the ablation object display 21 is displayed.

  In step S13, as in step S3 of the first embodiment, the operator selects the form of the radiofrequency ablation display 10 by the input unit 13, inputs the diameter of the ablation range display 11 numerically, and the radio By operating to display the wave ablation display 10, the radio wave ablation display 10 including the ablation range display 11 and the needle tip alignment display 12 is displayed as shown in FIG.

  Next, in step S14, as in step S4 of the first embodiment, the operator operates the pointing device 14, and the ablation range display 11 is positioned in an appropriate ablation range as shown in FIG. Thus, the radiofrequency ablation display 10 including the ablation range display 11 and the needle tip alignment display 12 is moved.

  When the radiofrequency ablation display 10 is moved to an appropriate ablation position in step S14, the distance calculation unit 72 calculates the distance between the ablation range display 11 and the ablation object display 21 in step S15, and displays this image display. Display on the device 6. In this example, the distance calculation unit 72 calculates a maximum value and a minimum value among the distances of the ablation range display 11 and the ablation object display 21, and the calculated value display setting unit 73 calculates the maximum value and the minimum value. The value is displayed on the image display device 6 as the calculated value display 22.

  The distance calculation by the distance calculation unit 72 will be described with reference to FIG. The distance calculation unit 72 calculates a distance between an arbitrary point P on the ablation range display 11 and the ablation object display 21. Here, as the distance between the point P and the ablation object display 21, the distance calculation unit 72 and the ablation object display 21 that is the center of the ablation range display 11 and connects the needle alignment display 12 and the point P. And the distance between the point P and the point P is calculated. The distance calculation unit 72 calculates the distance for a plurality of points P, and sets the largest value and the smallest value as the maximum value and the minimum value, respectively.

  Here, when the radio frequency ablation display 10 is moved, the distance calculation unit 72 may calculate the maximum value and the minimum value and display the calculated value display 22 in real time. By doing so, the operator moves the radiofrequency ablation display 10 while looking at the calculated value display 22, and the position where the maximum value and the minimum value displayed as the calculated value display 22 become the optimum values. Thus, since the radiofrequency ablation display 10 can be stopped, the radiofrequency ablation display 10 can be easily positioned.

  Also by the ultrasonic diagnostic apparatus 30 of the present example described above, the same effects as those of the first and second embodiments can be obtained. In addition, since the maximum value and the minimum value are calculated as the distance between the ablation range display 11 and the ablation object display 21, the shape of the tumor X is not a perfect circle but the shape of the ablation range display 11 and the ablation object display 21. Even if they are different from each other, it is possible to easily check whether or not the ablation range display 11 is set to be a range in which the tumor X can be surely ablated. Can be easily set.

  As mentioned above, although this invention was demonstrated by each said embodiment, this invention can be variously implemented in the range which does not change the main point. For example, the ablation range display 11 may be a polygon that is symmetrical with respect to the puncture guideline 9 in addition to the example given in the above description.

  The shapes of the ablation object display 21 and the influence range display 23 are not limited to circles. A plurality of shapes of the ablation object display 21 and the influence range display 23 may be stored, and the operator may select the shape using the input unit 13 or the like.

  Further, the influence range display 23 may be displayed in the first embodiment and the third embodiment.

  Further, the additional information processing unit 7 may include a calculation unit that calculates the area of the portion surrounded by the cautery range display 11 or the volume of the cautery range based on the cautery range display 11. Further, the additional information processing unit 7 based on the ablation object display 21, the area of the portion surrounded by the ablation object display 21 (the area of the ablation object such as the tumor X on a tomographic plane) or the volume of the ablation object. May be provided, and the calculated value obtained may be displayed on the ultrasound image. Incidentally, when the volume is calculated, when the ablation range display 11 and the ablation target display 21 are symmetrical figures with respect to the puncture guideline 9, the ablation range display 11 and the ablation target display 21 are punctured. By rotating about the guideline 9 as an axis and obtaining the volume of the solid obtained respectively, the volume of the ablation range and the volume of the ablation object are calculated. Further, when the ablation range display 11 and the ablation target display 21 are asymmetric figures with respect to the puncture guideline 9, the ablation range display 11 for a plurality of tomographic planes obtained by performing a three-dimensional scan. The volume of the ablation range and the volume of the ablation object are respectively calculated by integrating the area of the part surrounded by, and the area of the part surrounded by the ablation object display 21.

  Further, the additional information processing unit 7 determines the area of the portion surrounded by the ablation object display 21 based on the ablation object display 21 and the ablation range display 11 (the area of an ablation object such as a tumor X on a tomographic plane). ) And the area of the part surrounded by the ablation range display 11, or the difference between the volume of the ablation object indicated by the ablation object display 21 and the volume of the part surrounded by the ablation range display 11. A calculation unit for calculation may be provided, and the obtained calculation value may be displayed on the ultrasonic image. Thereby, it can be easily confirmed how much the ablation range display 11 is set with respect to the ablation object.

1 is a block diagram illustrating a configuration of an ultrasonic diagnostic diagnosis apparatus according to a first embodiment of the present invention. It is a block diagram which shows an example of a structure of the display setting part of the ultrasonic diagnosing device shown in FIG. It is a figure which shows the ultrasonic image displayed on an image display apparatus. It is a flowchart which shows an example of operation | movement of the ultrasonic diagnosing device of 1st embodiment. It is explanatory drawing of the setting of the radiofrequency ablation display on an ultrasonic image. It is explanatory drawing of the setting of the radiofrequency ablation display on an ultrasonic image. It is explanatory drawing of the setting of the radiofrequency ablation display on an ultrasonic image. It is a figure which shows a state when inserting a puncture needle after setting of a radiofrequency ablation display. It is a figure which shows the ultrasonic image in the modification of 1st embodiment. It is a block diagram which shows the structure of the ultrasonic diagnosing device which concerns on 2nd embodiment of this invention. It is a block diagram which shows an example of a structure of the display setting part of the ultrasonic diagnosing device shown in FIG. It is a figure which shows the ultrasonic image by which the radiofrequency ablation display in 2nd embodiment was displayed. It is a figure which shows the ultrasonic image by which the radiofrequency ablation display in 2nd embodiment was displayed. It is a figure which shows the ultrasonic image in the modification of 2nd embodiment. It is a block diagram which shows schematic structure of the display setting part in the ultrasonic diagnosing device of the modification of 2nd embodiment. It is a block diagram which shows the structure of the ultrasonic diagnosing device which concerns on 3rd embodiment of this invention. It is a block diagram which shows an example of a structure of the display setting part of the ultrasonic diagnosing device shown in FIG. It is a flowchart which shows an example of operation | movement of the ultrasonic diagnosing device which concerns on 3rd embodiment of this invention. It is explanatory drawing of the setting of the radiofrequency ablation display on the ultrasonic image in 3rd embodiment of this invention. It is explanatory drawing of the setting of the radiofrequency ablation display on the ultrasonic image in 3rd embodiment of this invention. It is explanatory drawing of the setting of the radiofrequency ablation display on the ultrasonic image in 3rd embodiment of this invention. It is explanatory drawing of the setting of the radiofrequency ablation display on the ultrasonic image in 3rd embodiment of this invention. It is explanatory drawing of distance calculation by the distance calculation part in 3rd embodiment of this invention.

Explanation of symbols

1,20,30 Ultrasound diagnostic equipment 9 Puncture guidelines (route display)
10 Radio frequency ablation display 11 Ablation range display 12 Needle tip alignment display 13 Input section (cauterization range input section)
14 Pointing device (position change instruction unit)
21 ablation object display 23 influence range display 72 distance calculation unit 711 guideline setting unit (route display setting unit)
712 Radiofrequency ablation display setting unit 713, 7122 Ablation target display setting unit 7123 Influence range display setting unit

Claims (12)

An ablation range input unit for inputting information on the ablation range by radio waves in an ultrasonic image;
A path display setting unit for displaying a path display indicating the insertion path of the puncture needle that emits radio waves on the ultrasound image;
The radiofrequency ablation display including an ablation range display indicating the ablation range inputted by the ablation range input unit, causes displayed on the ultrasound image to include the path display, the radiofrequency ablation displayed on the route display A radio frequency ablation display setting section that is moved along,
In order to move the radiofrequency ablation display along the route display by the radiofrequency ablation display setting unit, a position change instruction unit that outputs position change information input by an operator to the radiofrequency ablation display setting unit;
An ultrasonic diagnostic apparatus comprising: The ultrasonic diagnostic apparatus according to claim 1, wherein the route display is a linear puncture guideline, and the ablation range display is a circle, an ellipse, or a polygon symmetrical to the puncture guideline. The radiofrequency ablation display setting unit displays a needlepoint alignment display for aligning the needlepoint of the puncture needle on the puncture guideline as a part of the radiofrequency ablation display. The ultrasonic diagnostic apparatus as described. The ultrasonic diagnostic apparatus according to any one of claims 1 to 3, further comprising a cautery object display setting unit that displays on the ultrasonic image an ablation object display indicating the ablation object by radio waves. The supersonic wave ablation display setting unit includes the ablation target display setting unit, and the ablation target display is displayed as a part of the radiofrequency ablation display. Ultrasonic diagnostic equipment. The ultrasonic wave according to claim 4, further comprising a calculation unit that calculates a distance between the ablation object display displayed in a portion surrounded by the ablation range display and the ablation range display. Diagnostic device. The ultrasonic diagnostic apparatus according to claim 6, wherein the calculation unit calculates a maximum value and a minimum value of a distance between the ablation object display and the ablation range display. The calculation part which calculates the area of the part enclosed by this ablation range display, or the volume of the ablation range based on the ablation range display is provided. The super as described in any one of Claims 1-7 characterized by the above-mentioned. Ultrasonic diagnostic equipment. The calculation part which calculates the area of the part enclosed by the ablation object display or the volume of the ablation object based on the ablation object display is provided. Ultrasonic diagnostic equipment. Based on the ablation object display and the ablation range display, the difference between the area of the part surrounded by the ablation object display and the area of the part surrounded by the ablation range display, or the volume of the ablation object and the ablation range volume The ultrasonic diagnostic apparatus according to claim 1, further comprising: a calculation unit that calculates a difference between the ultrasonic diagnostic apparatus and the calculation unit. The influence range display setting part which displays the influence range display which shows the range of the influence exerted on the structure | tissue near an affected part by cauterization is provided in the outer side of the ablation range. Ultrasound diagnostic equipment. The ultrasonic diagnostic apparatus according to any one of claims 1 to 11, wherein the route display setting unit and the radiofrequency ablation display setting unit display a plurality of the route display and the radiofrequency ablation display. .

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