JP6979853B2 - Ultrasonic diagnostic equipment and its control program - Google Patents

Description

The present invention relates to an ultrasonic diagnostic apparatus and a control program thereof that transmit ultrasonic waves to a subject, receive the echo signal, and display an ultrasonic image based on the echo signal.

In the ultrasonic diagnostic apparatus, an ultrasonic image is displayed based on an ultrasonic echo signal transmitted to a subject, and various diagnoses are performed. As the ultrasonic image, for example, there is a B-mode image which is a black-and-white tomographic image (see, for example, Patent Document 1). In this B-mode image, the diagnosis is made by observing the structural information.

In recent years, B-mode images have come to diagnose lung diseases. Since the lung contains a lot of air, the inside of the lung cannot be seen in the B mode image, but pneumothorax, pulmonary edema, etc. can be discriminated by the appearance of the boundary of the lung. One of them is a diagnostic sign called a B line, which is a linear pattern appearing in a B mode image.

Observing the B-line means that water is stored in the lungs, so pulmonary edema or pneumonia can be suspected. The number of B-lines observed also correlates with the amount of water stored, i.e. the severity of the disease.

Further, this B line generally corresponds to a line having a tail longer than 12 cm, and a line shorter than that is not regarded as a B line. Needless to say, in order to observe the B line where the observation of the length of the tail is important, it is usually necessary to increase the depth of view. For example, in order to observe the B line up to 12 cm, the field of view depth needs to be at least 12 cm.

Japanese Unexamined Patent Publication No. 2015-084898

In the B-mode image, the surface of the lung exists in the vicinity of 2 to 3 cm from the body surface, and although tissue information cannot be obtained except for the B line at a depth deeper than that, the tissue is obtained from the body surface to the surface of the lung. Information can be observed. However, the deeper the visual field depth, the smaller the scale of the ultrasonic image. Therefore, when the visual field depth is deepened to observe the B line, fine information is overlooked in the region where the tissue information can be observed. There is a risk. Therefore, an ultrasonic diagnostic apparatus capable of obtaining an ultrasonic image capable of appropriately observing the structural information of the tissue while making it possible to observe the B line at a depth deeper than the required depth for diagnosis is desired. It is rare.

The inventor of the present application has focused on the fact that the structural information of the tissue is not obtained in the deeper part than the lung surface in the ultrasonic image, and it is sufficient if the presence or absence of the B line can be confirmed. The invention of one viewpoint made to solve the above-mentioned problems was created based on an ultrasonic probe that transmits an ultrasonic wave to a subject and receives an echo signal of the ultrasonic wave, and the echo signal. A display device for displaying an ultrasonic image is provided, and the display device is required as the ultrasonic image in the depth direction of the subject in the entire region where the echo signal is obtained in the subject. An ultrasonic image of at least two second subregions having a width of 2 excluding the first subregion and having different positions in the depth direction is displayed.
It is an ultrasonic diagnostic device.

Further, in the invention of another viewpoint, an ultrasonic probe that transmits ultrasonic waves to a subject and receives an echo signal of the ultrasonic waves, a control device, and an ultrasonic image based on the echo signal are displayed. The control device includes a display device, and the control device is an image data creation function for creating ultrasonic image data by performing scanning conversion on raw data obtained based on the echo signal, and is used for the ultrasonic image data. Based on this, in the ultrasonic image displayed on the display device, the raw data is displayed so that the fifth partial region having a required width in the depth direction in the subject is smaller than the sixth partial region. It is an ultrasonic diagnostic apparatus that executes the image data creation function for performing the scanning conversion to be mapped by a program.

According to the invention of the above one aspect, at least two regions in the subject from which the echo signal was obtained, excluding the first partial region having a required width in the depth direction of the subject. Since the ultrasonic image of the second partial region is displayed, the ultrasonic image of the second partial region can be displayed larger by the amount that the first partial region is removed. Thereby, for example, even minute information can be easily observed. On the other hand, if it can be confirmed that the B line continues to the required depth, it is sufficient for the diagnosis, and the ultrasonic image of the second partial region displayed for the portion deeper than the required depth required for the diagnosis. Therefore, it is possible to observe the B line necessary for diagnosis.

Further, according to the invention of another aspect, the scan for mapping the raw data so that the fifth partial region having a required width in the depth direction in the subject is smaller than the sixth partial region. In the ultrasonic image displayed based on the ultrasonic image data created by performing the conversion, the sixth partial region can be displayed larger by the amount that the fifth partial region is reduced. Therefore, for example, even minute information can be easily observed in the ultrasonic image of the sixth partial region. On the other hand, if it can be confirmed that the B line continues to the required depth, it is sufficient for the diagnosis, and the ultrasonic image of the fifth partial region is displayed for the portion deeper than the required depth required for the diagnosis. This makes it possible to observe the B line necessary for diagnosis.

It is a block diagram which shows the ultrasonic diagnostic apparatus in embodiment of this invention. It is a functional block diagram which shows the display processing part. It is a conceptual diagram which shows the B mode image data. It is a figure which shows the B mode image displayed on the display device in 1st Embodiment. It is a figure which shows the transmission and reception of the ultrasonic wave in the 1st direction. It is a figure which shows the transmission and reception of the ultrasonic wave in the 2nd direction. It is a figure which shows the transmission and reception of the ultrasonic wave in the 3rd direction. It is a conceptual diagram which shows the B mode data. It is a figure which shows the B mode image displayed on the display device in 2nd Embodiment. It is a figure which shows the B mode image displayed on the display device in 3rd Embodiment. It is a conceptual diagram which shows the B mode data.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First Embodiment)
First, the first embodiment will be described. The ultrasonic diagnostic apparatus 1 shown in FIG. 1 includes an ultrasonic probe 2, a transmission / reception beam former 3, an echo data processing unit 4, a display processing unit 5, a display device 6, an operation device 7, a control device 8, and a storage device 9. The ultrasonic diagnostic apparatus 1 has a configuration as a computer.

The ultrasonic probe 2 transmits ultrasonic waves to the living tissue of the subject and receives the echo signal. In the ultrasonic probe 2, a plurality of ultrasonic transducers (transducers), which are not particularly shown, are arranged in the azimuth direction. The ultrasonic probe 2 is an example of an embodiment of the ultrasonic probe in the present invention.

The transmission / reception beam former 3 drives the ultrasonic probe 2 to transmit ultrasonic waves having predetermined transmission conditions based on the control signal from the control device 8. Further, the transmission / reception beam former 3 performs signal processing such as phasing / addition processing on the ultrasonic echo signal. A part of the transmission / reception beam former 3 is functionally realized by the control device 8 reading and executing the program.

The echo data processing unit 4 performs processing for creating an ultrasonic image on the echo data output from the transmission / reception beam former 3. The processing by the echo data processing unit 4 is functionally realized, for example, by the control device 8 reading and executing the program. For example, the echo data processing unit 4 performs B-mode processing such as logarithmic compression processing and envelope detection processing to create B-mode data.

Incidentally, the data before being scanned and converted into ultrasonic image data by a scan converter (scan converter) described later is referred to as raw data. The B mode data is raw data.

As shown in FIG. 2, the display processing unit 5 has an image data creation unit 51 and an image display control unit 52. The processing by the image data creation unit 51 and the image display control unit 52 in the display processing unit 5 is functionally realized by, for example, the control device 8 reading and executing the program.

The image data creation unit 51 creates image data by scanning and converting the raw data from the echo data processing unit 4 with a scan converter. The image data creation unit 51 creates B-mode image data by scanning and converting, for example, B-mode data. The function of the image data creation unit 51 is an example of the embodiment of the image data creation function in the present invention.

The image display control unit 52 causes the display device 6 to display an ultrasonic image based on the image data. The image display control unit 52 causes the display device 6 to display a B-mode image based on, for example, B-mode image data. The function of the image display control unit 52 is an example of the embodiment of the display control function in the present invention. Further, the color Doppler image is an example of the embodiment of the motion image in the present invention.

The display device 6 is an LCD (Liquid Crystal Display), an organic EL (Electro-Luminescence) display, or the like. The display device 6 is an example of an embodiment of the display device in the present invention.

The operation device 7 is a device that receives instructions and input of information from the user. The operation device 7 includes a button and a keyboard (keyboard) for receiving instructions and input of information from the operator, and further includes a pointing device such as a trackball.

The control device 8 is a circuit that controls the ultrasonic diagnostic apparatus 1, and is, for example, a processor such as a CPU (Central Processing Unit). The control device 8 reads out the program stored in the storage device 9 and controls each part of the ultrasonic diagnostic apparatus 1. The control device 9 is an example of an embodiment of the control device in the present invention.

For example, the control device 8 reads out the program stored in the storage unit 9, and causes the functions of the transmission / reception beam former 3, the echo data processing unit 4, and the display processing unit 5 described above to be executed by the read program. The control device 8 may programmatically execute all the functions of the transmission / reception beam former 3, all the functions of the echo data processing unit 4, and all the functions of the display processing unit 5. Only some functions may be performed programmatically. If the control device 8 performs only some functions, the remaining functions may be performed by hardware such as circuits.

The functions of the transmission / reception beam former 3, the echo data processing unit 4, and the display processing unit 5 may be realized by hardware such as a circuit.

The storage device 9 includes a non-transient storage medium and a transient storage medium. The non-transient storage medium is, for example, a non-volatile storage medium such as an HDD (Hard Disk Drive) and a ROM (Read Only Memory). The non-transient storage medium may include a portable storage medium such as a CD (Compact Disk) or a DVD (Digital Versatile Disc). The program executed by the control device 8 is stored in a non-transient storage medium.

The transient storage medium is a volatile storage medium such as RAM (Random Access Memory).

The program executed by the control device 8 is stored in a non-transient storage medium such as an HDD or a ROM constituting the storage device 9. Further, the program may be stored in a portable and non-transient storage medium such as a CD or a DVD constituting the storage device 9.

Next, the operation of the ultrasonic diagnostic apparatus of this example will be described. The ultrasonic probe 2 transmits and receives ultrasonic waves to the inside (inside) of the subject, and an echo signal is acquired. Then, an ultrasonic image is created based on the echo signal and displayed on the display device 6. In this example, ultrasonic waves are transmitted and received to a region including the lungs, and a B-mode image including the lungs is displayed as an ultrasonic image.

It will be explained in more detail. The image data creation unit 51 creates B-mode image data based on the B-mode data created from the echo signal by the echo data processing unit 4. The image data creation unit 51 creates a B-mode image data DI for the entire region R where the echo signal is obtained in the subject. FIG. 3 shows the B mode image data DI. FIG. 3 is a conceptual diagram, and the B-mode image data DI is shown in a trapezoidal shape. This trapezoidal region is the entire region R.

The B-mode image data DI includes the first B-mode image data DI1 and the second B-mode image data DI2. The entire region R is composed of a first partial region R1 and a second partial region R2, and the first B-mode image data DI1 is data about the first partial region R1. Further, the second B mode image data DI2 is data about the second partial region R2.

The first partial region R1 and the second partial region R2 have the required widths W1 and W2 in the depth direction of the subject. The image display control unit 52 causes the display device 6 to display the B-mode image BI of the second partial region R2 excluding the first partial region R1 of the entire region R as shown in FIG.

The B-mode image BI of the second partial region R2 is an image based on the second B-mode image data DI2. The second B-mode image data DI2 includes a second B-mode image data DI2A for the second partial region R2A, a second B-mode image data DI2B for the second partial region R2B, and a second partial region R2C. Includes a second B-mode image data DI2C for.

More specifically, the second B-mode image data DI2A is data about the second partial region R2A between the body surface and the distance a in the depth direction from the body surface. Further, the second B mode data DI2B is data about the second partial region R2B between the distance b in the depth direction from the body surface and the distance c in the depth direction from the body surface. Further, the second B mode data DI2C is data about the second partial region R2C between the distance d in the depth direction from the body surface and the distance e in the depth direction from the body surface. However, a <b <c <d <e. Therefore, the three second subregions R2A, R2B, and R2C have different positions in the depth direction, the second subregion R2A is the shallowest region, and the second subregion R2C is the deepest region.

The distance a is, for example, the position of the surface of the lung. Further, the distance d is, for example, the minimum distance (for example, 12 cm) required for certifying the B line. Alternatively, the distance b or the distance c may be the minimum distance required to certify the B line. Further, the distance d may be larger than the minimum distance required to certify the B line.

The widths W2 of each of the three second subregions R2A, R2B, and R2C may be the same or different. Further, the width W2 of each of the two first partial regions R1 may be the same or different.

As shown in FIG. 4, the display device 6 has a B-mode image BIa based on the second B-mode image data DI2A, a B-mode image BIb based on the second B-mode image data DI2B, and a second B-mode image BI. The B-mode image BIc based on the second B-mode image data DI2C is displayed.

The image display control unit 52 may display the B-mode image BIa in a larger size than the other B-mode images BIb and BIc. In other words, the scale of the B-mode image BIa may be larger than the B-mode images BIb and BIc. In this case, in the B-mode image BIa, the tissue structure is displayed in a larger size than in the B-mode images BIb and BIc.

According to this example, in the depth direction of the subject, the B mode image BI of the second partial region R2 excluding the first partial region R1 having the required width W1 is displayed, so that the first portion is displayed. The B-mode image BI of the second partial region R2 can be displayed larger by the amount that the region R1 is removed. Here, "large" means that the inside of the subject is displayed in a large size without changing the area of the display area in the display device 6. Thereby, in this example, for example, fine information on the lung surface can be easily observed. Further, by enlarging the B-mode image BIa more than the other B-mode images BIb and BIc, fine information can be observed more easily.

On the other hand, since the structural information of the tissue cannot be obtained in the deeper part than the lung surface, there is no problem even if the first partial region R1 is excluded. It is sufficient if the presence or absence of the B line can be confirmed deeper than the lung surface. Therefore, the existence or nonexistence of the B line can be confirmed by displaying the B mode images BIb and BIc including the depth required for certifying the B line.

Next, a modified example of the first embodiment will be described. First, a first modification will be described. The B-mode image BIa and the B-mode images BIb and BIc may have different image quality from each other. The B-mode image BIA is an example of the first embodiment of the ultrasonic image in the present invention. Further, the second partial region R2A is an example of the embodiment of the third partial region in the present invention. Further, the B-mode images BIb and BIc are examples of the second embodiment of the ultrasonic image in the present invention. Further, the second partial regions R2B and R2C are examples of the embodiment of the fourth partial region in the present invention.

For example, the image data creation unit 51 performs a process for improving the contrast resolution and the spatial resolution of the second B mode image data DI2A. For example, the image data creation unit 51 applies the first image filter for improving the contrast resolution and the spatial resolution to the second B mode image data DI2A. Further, the image data creation unit 51 performs a process for improving the contrast resolution of the second B mode image data DI2B and DI2C. For example, the image data creation unit 51 applies a second image filter for improving the contrast resolution to the second B mode image data DI2B and DI2C.

The image display control unit 52 displays the B-mode image BIa based on the second B-mode image data DI2A to which the first image filter is applied. Further, the image display control unit 52 displays the B-mode images BIb and BIc based on the second B-mode image data DI2B and DI2C to which the second image filter is applied.

Since the B-mode image BIa is an image in which the contrast resolution and the spatial resolution are improved and the structure is better described, it is possible to display an image suitable for observing fine information on the lung surface. On the other hand, since the B-mode images BIb and BIc are images with improved contrast resolution, it is possible to display an image suitable for observing the B line.

In order to display the B-mode image BIA with improved contrast resolution and spatial resolution, the echo data processing unit 4 uses the echo signal (raw data) obtained from the second partial region R2A to display the first harmonic component. Signals in the frequency band may be extracted. In this case, the B-mode image BIA based on the second B-mode image data DI2A created based on the signal in the first frequency band is displayed.

The echo data processing unit 4 may extract a signal in the second frequency band of the fundamental wave component based on the echo signal (raw data) obtained from the second partial regions R2B and R2C. In this case, the second B-mode image data DI2B and the B-mode images BIb and BIc based on the DI2C are displayed, which are created based on the signal of the second frequency band.

Next, a second modification will be described. In this second modification, the B-mode image BIa may be a compound image. This will be described in detail. The ultrasonic probe 2 transmits and receives ultrasonic waves in a plurality of different directions. For example, the ultrasonic probe 2 transmits / receives ultrasonic waves in the first direction A shown in FIG. 5, transmits / receives ultrasonic waves in the second direction B shown in FIG. 6, and transmits / receives ultrasonic waves in the third direction shown in FIG. In C, ultrasonic waves are transmitted and received.

The image data creation unit 51 includes the second B-mode image data DI2A based on the echo signal obtained by transmitting and receiving ultrasonic waves in the first direction L for one frame, and the superimposition in the second direction M for one frame. Second B-mode image data DI2A based on the echo signal obtained by transmitting and receiving sound waves, and second B-mode image data based on the echo signal obtained by transmitting and receiving ultrasonic waves in the third direction N for one frame. DI2A is synthesized to create composite data for one frame. The image display control unit 52 displays the B-mode image BIA based on the composite data. Since the B-mode image BIA is a compound image, the outline of the structure can be better described.

On the other hand, the B-mode images BIb and BIc are displayed not based on the compound image but based on the second B-mode image data DI2B and DI2C based on the echo signal obtained by transmitting and receiving ultrasonic waves in the first direction L. This makes it possible to confirm the existence of the B line.

(Second embodiment)
Next, the second embodiment will be described. Hereinafter, the same matters as those of the first embodiment will be omitted.

The ultrasonic diagnostic apparatus 1 of this example also has the same configuration as the ultrasonic diagnostic apparatus shown in FIGS. 1 and 2. However, in this example, the image data creation unit 51 has B-mode data (low) for the second partial region R2 excluding the first partial region R1 of the total region R from which the echo signal was obtained in the subject. Data) is used to create B-mode image data. FIG. 8 shows the B mode data DR. FIG. 8 is a conceptual diagram, and the B mode data DR is shown as a rectangle. This rectangular area is the entire area R.

The B-mode data DR includes the first B-mode data DR1 and the second B-mode data DR2. The first B-mode data DR1 is data about the first partial region R1. Further, the second B mode data DR2 is data about the second partial region R2.

In FIG. 8, the first partial region R1 and the second partial region R2 are the same as those in FIG. That is, the second partial region R2 is a region R2A between the body surface and the distance a from the body surface, a region R2B between the distance b from the body surface and the distance c from the body surface, and the body surface. It is a region R2C between the distance d and the distance e from the body surface.

The second B-mode data DR2 is the data DR2A for the second subregion R2A, the data DR2B for the second subregion R2B, and the data DR2C for the second subregion R2C.

The image data creation unit 51 scan-converts the second B-mode data DR2A, the second B-mode data DR2B, and the second B-mode data DR2C to create one frame of B-mode image data. The image display control unit 52 causes the display device 6 to display the B-mode image BI based on the B-mode image data as shown in FIG.

In the B-mode image BI of FIG. 9, the B-mode image BIa is an image based on the second B-mode data DR2A, the B-mode image BIb is an image based on the second B-mode data DR2B, and the B-mode image BIc is the first. It is an image based on the second B mode data DR2C. The image data creation unit 51 creates B-mode image data by performing the above-mentioned scanning conversion so that, for example, a trapezoidal B-mode image BI can be obtained. In FIG. 9, a gap is formed between the B-mode image BIa and the B-mode image BIb, and between the B-mode image BIb and the B-mode image BIc, but this gap may not be present.

According to this example, the B-mode image BI based on the second B-mode data DR2 for the second partial region R2 excluding the first partial region R1 is displayed. Therefore, since the B-mode image BI can be displayed larger by the amount that the first partial region R1 is removed, it is possible to easily observe minute information on the lung surface as in the first embodiment. can. On the other hand, with respect to the B-mode image BIb and the B-mode image BIc in the B-mode image BI, although the position information is not accurate, the existence or nonexistence of the B line can be confirmed as in the first embodiment.

In this example as well, the B-mode image BIa and the B-mode images BIb and BIc may have different image quality as in the first modification of the first embodiment. Further, in this example as well, the B-mode image BIa may be a compound image as in the second modification of the first embodiment.

(Third embodiment)
Next, the third embodiment will be described. Hereinafter, the same matters as those of the first and second embodiments will be omitted.

It has the same configuration as the ultrasonic diagnostic equipment shown in FIGS. 1 and 2 of this example. However, in this example, the image data creation unit 51 creates B-mode image data by performing scanning conversion different from that of the first and second embodiments.

This will be described in detail. FIG. 10 shows the B mode image BI displayed in this example. In this B-mode image BI, the B-mode image Bid of the fifth partial region R5 is displayed in a smaller size than the B-mode image Bie of the sixth partial region R6. In this example, the fifth subregion R5 and the sixth subregion R6 are shown as part of the B-mode image BI. The B-mode image Bid is an example of the third embodiment of the ultrasonic image in the present invention. Further, the B-mode image Bie is an example of the fourth embodiment of the ultrasonic image in the present invention.

In the B-mode image BI, the image data creation unit 51 performs B-mode data (raw data) so that the B-mode image Bid in the fifth partial region R5 is smaller than the B-mode image Bie in the sixth partial region R6. ) Perform scan conversion to map DR. FIG. 11 shows the B mode data DR. FIG. 11 is also a conceptual diagram similar to FIG.

In the B-mode data DR, the image data creation unit 51 scan-converts the fifth B-mode data DR5 for the fifth partial region R5 to create image data of the B-mode image Bid. Further, the image data creation unit 51 scan-converts the sixth B-mode data DR6 for the sixth partial region R6 in the B-mode data DR to create the image data of the B-mode image Bie. The image data creation unit 51 performs scanning conversion for mapping the B mode data DR5 and DR6 so that the fifth partial region R5 in the B mode image BI is smaller than the sixth partial region R6.

The sixth region R6 is a region between the body surface and the distance a from the body surface. The fifth region R5 is a region between the distance a from the body surface and the distance e from the body surface (not shown in FIG. 10). In FIG. 10, in the scale S shown next to the B mode image BI, the distance a between the scales up to the distance a from the body surface and the distance ed between the scales deeper than the distance a from the body surface are ed. , The same distance is shown in the actual subject. However, in FIG. 10, the interval ed is smaller than the interval a, indicating that the fifth partial region R5 in the B-mode image BI is smaller than the sixth partial region R6. There is.

According to this example, the sixth partial region R6 can be displayed larger by the amount that the fifth partial region R5 is smaller than the sixth partial region R6. Therefore, according to the B-mode image BI of this example, the fifth partial region R5 has a sixth partial region R6 as compared with the B-mode image created without being reduced as compared with the sixth partial region R6. It can be displayed in a large size. Therefore, in the B-mode image Bie of the sixth partial region R6, fine information on the lung surface can be easily observed. On the other hand, in the B mode image Bid of the fifth partial region, the existence or nonexistence of the B line can be confirmed.

In this example as well, the B-mode image BId and the B-mode image Bie may have different image quality from each other, as in the first modification of the first embodiment. In this case, the B-mode image Bie is an image with improved contrast resolution and spatial resolution, and the B-mode image Bid is an image with improved contrast resolution.

Further, in this example as well, the B-mode image Bie may be a compound image as in the second modification of the first embodiment.

Although the present invention has been described above by the above-described embodiment, it is needless to say that the present invention can be modified in various ways without changing the gist thereof.

1 Ultrasonic diagnostic device 2 Ultrasonic probe 6 Display device 8 Control device 9 Storage device 51 Image data creation unit 52 Image display control unit

Claims (16)

An ultrasonic probe that transmits ultrasonic waves to a subject and receives an echo signal of the ultrasonic waves.
A display device that displays an ultrasonic image created based on the echo signal, and
Equipped with
In the display device, as the ultrasonic image, a first partial region having a required width in the depth direction of the subject is excluded from the entire region where the echo signal is obtained in the subject. Ultrasound images of at least two second subregions that are two subregions and differ in position in the depth direction are displayed, and the ultrasound images of at least two of the second subregions are the whole. Created based on the echo signal obtained for the region,
Ultrasonic diagnostic equipment. A control device is provided, and the control device is
An image data creation function that creates ultrasonic image data based on the echo signal obtained for the entire region, and an image data creation function.
A display control function for displaying an ultrasonic image based on ultrasonic image data for the second partial region on the display device as the ultrasonic image, and a display control function.
The ultrasonic diagnostic apparatus according to claim 1, wherein the ultrasonic diagnostic apparatus is executed by a program. The display control function is a function of displaying the ultrasonic image for each of the plurality of the second partial regions on the display device.
The ultrasonic diagnostic apparatus according to claim 2, wherein at least one ultrasonic image of the ultrasonic images for each of the plurality of second partial regions has a different scale from the other ultrasonic images. The at least one ultrasonic image is an image about a region closer to the body surface in the subject than the other ultrasonic image, and is an enlarged image than the other ultrasonic image.
The ultrasonic diagnostic apparatus according to claim 3, wherein the other ultrasonic image includes an image of a portion of the subject having a depth required for diagnosis. A control device is provided, and the control device is
An image data creation function for creating ultrasonic image data using the raw data for the second partial region among the raw data of the entire region obtained based on the echo signal.
A display control function for displaying an ultrasonic image based on the ultrasonic image data on the display device as the ultrasonic image, and a display control function.
The ultrasonic diagnostic apparatus according to claim 1, wherein the ultrasonic diagnostic apparatus is executed by a program. The second partial region includes a body surface of the subject, a third partial region between the body surface and a required depth, and a fourth partial region deeper than the third partial region. One of claims 1 to 5, wherein the first ultrasonic image for the third partial region and the second ultrasonic image for the fourth partial region have different image quality from each other. The ultrasonic diagnostic apparatus described in. The first ultrasonic image is an image obtained by subjecting the echo signal to a process for improving the contrast resolution and the spatial resolution.
The second ultrasonic image is an image obtained by subjecting the echo signal to a process for improving the contrast resolution.
The ultrasonic diagnostic apparatus according to claim 6. The first ultrasonic image is an image obtained by using the first image filter that improves the contrast resolution and the spatial resolution.
The second ultrasonic image is an image obtained by using a second image filter that improves the contrast resolution of the echo signal.
The ultrasonic image display device according to claim 6 or 7. The first ultrasonic image is an image created based on the echo signal in the first frequency band of the harmonic component of the echo signal.
The second ultrasonic image is an image created based on the echo signal in the second frequency band of the fundamental wave component of the echo signal.
The ultrasonic diagnostic apparatus according to claim 6. The ultrasonic probe transmits and receives ultrasonic waves in a plurality of different directions.
The first ultrasonic image is a compound image obtained by performing a synthesis process on each echo signal of a plurality of frames obtained in each of the plurality of directions.
The second ultrasonic image is an image obtained based on an echo signal of a frame obtained in any one of the plurality of directions.
The ultrasonic diagnostic apparatus according to claim 6 or 7. An ultrasonic probe that transmits ultrasonic waves to a subject and receives an echo signal of the ultrasonic waves.
Control device and
A display device that displays an ultrasonic image for one region based on the echo signal obtained by transmitting and receiving the ultrasonic wave for one region of the subject by the ultrasonic probe.
Equipped with
The control device is an image data creation function that creates ultrasonic image data by performing scanning conversion on raw data obtained based on the echo signal, and displays the raw data on the display device based on the ultrasonic image data. The scanning transformation that maps the raw data such that the fifth subregion having the required width in the depth direction in the subject is smaller than the sixth subregion in the ultrasonic image. performed by the image data creation function program for performing,
The sixth partial region is a region closer to the body surface of the subject than the fifth partial region.
The third ultrasonic image for the fifth partial region and the fourth ultrasonic image for the sixth partial region have different image quality from each other.
The fourth ultrasonic image is an image obtained by subjecting the echo signal to a process for improving the contrast resolution and the spatial resolution.
The third ultrasonic image is an image obtained by subjecting the echo signal to a process for improving the contrast resolution.
Ultrasound diagnostic device The fourth ultrasonic image is an image obtained by using the first image filter that improves the contrast resolution and the spatial resolution.
The third ultrasonic image is an image obtained by using a second image filter that improves the contrast resolution of the echo signal.
Ultrasound image display apparatus according to claim 1 1. The fourth ultrasonic image is an image created based on the echo signal in the first frequency band of the harmonic component of the echo signal.
The third ultrasonic image is an image created based on the echo signal in the second frequency band of the fundamental wave component of the echo signal.
The ultrasonic diagnostic apparatus according to claim 1 1. The ultrasonic probe transmits and receives ultrasonic waves in a plurality of different directions.
The fourth ultrasonic image is a compound image obtained by performing a synthesis process on each echo signal of a plurality of frames obtained in each of the plurality of directions.
The third ultrasonic image is an image obtained based on an echo signal of a frame obtained in any one of the plurality of directions.
The ultrasonic diagnostic apparatus according to claim 1 1. It is a control program of an ultrasonic diagnostic apparatus equipped with an ultrasonic probe that transmits ultrasonic waves to a subject and receives an echo signal of the ultrasonic waves, and a control device.
The control program causes the control device to execute a display control function for displaying an ultrasonic image created based on the echo signal on the display device, and the display control function is used as the ultrasonic image. A second partial region of the entire region from which the echo signal was obtained in the subject, excluding the first partial region having a required width in the depth direction of the subject, and in the depth direction. The ultrasonic images of at least two second subregions having different positions in the above are displayed, and the ultrasonic images of at least two of the second subregions are created based on the echo signal obtained for the whole region. A control program for ultrasonic diagnostic equipment. An ultrasonic probe that transmits ultrasonic waves to a subject and receives an echo signal of the ultrasonic waves, a control device, and the ultrasonic probe transmit and receive the ultrasonic waves in one region of the subject. A control program for an ultrasonic diagnostic apparatus including a display device for displaying an ultrasonic image for the one region based on the obtained echo signal.
To the control device
It is an image data creation function that creates ultrasonic image data by performing scanning conversion on raw data obtained based on the echo signal, and the ultrasonic waves displayed on the display device based on the ultrasonic image data. An image data creation function that performs the scan conversion that maps the raw data so that the fifth partial region having a required width in the depth direction of the subject is smaller than the sixth partial region in the image. To execute ,
The sixth partial region is a region closer to the body surface of the subject than the fifth partial region.
The third ultrasonic image for the fifth partial region and the fourth ultrasonic image for the sixth partial region have different image quality from each other.
The fourth ultrasonic image is an image obtained by subjecting the echo signal to a process for improving the contrast resolution and the spatial resolution.
The third ultrasonic image is an image obtained by subjecting the echo signal to a process for improving the contrast resolution.
Control program for ultrasonic diagnostic equipment.

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