JPH0779812B2 - Reconstructed image capturing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention is one in which reconstructed images from various modalities such as an X-ray CT apparatus and an MRI apparatus are sequentially captured by an imager. The present invention relates to a reconstructed image photographing device applied to a photographing system, and more particularly, to improvement of a photographing control method of a reconstructed image in an imager.

(Prior Art) In a conventional image capturing system to which this type of image capturing device is applied, for example, as shown in FIG. 5, a reconfigurator 2, an imager controller 3, an imager are used with a host CPU 1 as a control center. 4 and an image display device 5. A plurality of reconstructed images are sequentially generated in the reconstructor 2 by the host CPU 1 based on the projection data sequentially acquired from the modality designated from the various modalities, and transferred to the image display device 5. The reconstructed images are displayed on the image display device 5.
Displayed in sequence on top. At the same time, the same plurality of reconstructed images are transferred to the imager controller 3 by the host CPU 1, so that the plurality of reconstructed images are sequentially captured by the imager 4.

In this case, a plurality of reconstructed images can be automatically shot by the imager 4 in the order of generation.

(Problems to be Solved by the Invention) However, according to the above-described conventional imaging apparatus, the imager 4 should be scanned unless the modality side is scanned in consideration of the generation sequence of the reconstructed image in the reconstructor 2.
The film obtained by automatic photography according to 1. shall have reconstructed images arranged irregularly. When the film on which the reconstructed image of the irregular array is recorded is viewed as it is, it becomes difficult for a doctor to diagnose a lesion site or the like of the patient.

Therefore, in the related art, for example, a scan is manually performed according to the order of the bed position, etc., the order of generating the reconstructed images in the reconstructor 2 is determined, and the film having the image order required by the operator is imaged by the imager 4. Had decided to get by.

However, performing the scan manually according to the order of the bed position, for example, cannot respond to an emergency reconstruction request, and causes a problem in that the operator is troubled in operation. It was

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a reconstructed image photographing apparatus capable of immediately obtaining a film having an image sequence required by an operator.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, a plurality of slices sequentially acquired and reconstructed by scanning a subject placed on a bed by a designated modality. In a reconstructed image capturing apparatus that sequentially captures image information in an imager, imaging sequence information according to a bed position of the tomographic image information regarding a predetermined subject sequentially captured by the imager before performing the scan. Is set, a storing means for storing the same, a sorting means for sorting the tomographic image information sequentially collected by the scan based on the imaging order information stored in the storing means, and a sorting means for sorting by the sorting means. Display means for displaying the tomographic image information in order, and the tomographic image information displayed on the display means is displayed on the imager. And it is characterized in that the stomach shooting.

(Operation) With the configuration according to the present invention, an imaging sequence according to the bed position of the tomographic image information regarding a predetermined object sequentially imaged by the imager before the scan of the object placed on the bed is executed. Information is set and accumulated, and the tomographic image information sequentially acquired by the scan of the subject is sorted based on the accumulated imaging order information, and the tomographic image information is displayed in this sorted order. Is taken by the imager. As a result, in the imager,
The film of the image sequence required by the operator can be obtained automatically and quickly.

(Embodiment) An embodiment of the present invention relates to an image capturing system having a system configuration as shown in FIG.
It operates as described according to the flowchart in the figure.

The host CPU 1 responds to an input operation performed by an operator for patient registration and registration of information regarding an imaging sequence in the imager 4 immediately before a scanning operation of an X-ray CT apparatus (not shown) designated as a modality, in response to the patient's input operation. The registration is performed in the corresponding memory area (step 201), and the information about the shooting order for the imager 4 is stored in the sorting information storage 7.

When the reconstructing process is started in the reconstructing device 2 based on the projection data sequentially acquired by the scanning action and the scanning (step 202), the control operation of the host CPU 1 causes the reconstructed image to be stored in the image accumulating device 6. Storage is started, and reconstructed images are stored until the processing process is completed.

Immediately after that, when the host CPU 1 receives a detection signal of a means (not shown) for detecting the completion of scanning and reconstruction for one patient (step 203), the host CPU 1 causes the sorting information storage unit 7 to transfer the imager 4 to the imager 4. The information on the imaging order, that is, the information on the image display order is obtained, and the images for one patient are sorted based on the information (step 20).
Four).

When the sorting is completed, a display process for displaying the plurality of reconstructed images stored in the image storage device 6 on the image display device 5 in the order shown by the sorting (step
205), the photographing process of the reconstructed image displayed on the image display device 5 (step 206) is repeatedly and sequentially executed (steps 205 to 207). Therefore, the imager controller 3
Step 204 in imager 4 controlled by
When the imaging is performed in the image order sorted by, and the imaging of the reconstructed images for one patient is completed (Yes at step 207), the reconstructed images for one patient are recorded on the film in the image order required by the operator. Is recorded.

Further, in FIG. 2, the routine after step 205 indicated by the symbol a can be changed to the routines shown in FIGS. 3 and 4, respectively.

In FIG. 3, not only sort information but also information about processing methods such as filter type, presence / absence of patient information, and image processing method can be obtained at the time of patient registration, and these information are accumulated. An example of executing the process later is shown.

That is, after the images are sorted in step 204 of FIG. 2, the patient information is displayed on the image display device 5 (step 301), and after this display is completed, the imager controller 3 controls Imaging of patient information is executed in the major 4 (step 302).

Next, a display process on the image display device 5 for the plurality of reconstructed images stored in the image storage 6 according to the order indicated by the sorting in step 204 (step 30
3) The predetermined image processing (step 304) on the reconstructed image displayed on the image display device 5 and the image capturing process (step 305) of the reconstructed image image-processed in step 304 are repeatedly executed (step 305). Steps 304-306).
Then, at the time when the reconstructed images for one patient have been captured (Yes at step 306), the reconstructed images for one patient have been subjected to the predetermined image processing on the film in the image sequence required by the operator. Done and recorded with patient information. In the case of this embodiment, there is an advantage that a variety of recordings are made on the film in accordance with the request of the doctor or the like.

FIG. 4 shows an example in which it is possible to avoid capturing the failed image on film if an error occurs during the scanning and reconstruction steps.

That is, after the images are sorted in step 204 of FIG. 2, it is determined whether or not the image to be displayed next on the image display device 5 is a valid image in response to the operation with a marker by the operator. Yes (step 401). Therefore, step 204
Unnecessary images are excluded from the plurality of reconstructed images stored in the image storage device 6 according to the order indicated by the sorting in.

Then, for only the reconstructed image that is determined to be valid, the display process on the image display device 5 (step 402) and the image capturing process of the reconstructed image displayed on the image display device 5 (step 403) are repeated sequentially. Execute (steps 401-40)
Four). Then, at the time when the imaging of the reconstructed images for one patient is completed (Yes at step 404),
A reconstructed image for one patient is recorded in the required image sequence by the operator and with the unnecessary ones removed. In this embodiment, unnecessary reconstructed images are excluded before being displayed on the image display device 5. However, when it is recognized that the reconstructed image displayed on the image display device 5 is unnecessary, it is judged as unnecessary. It is also possible to perform the processing.

As described above, the reconstructed image capturing device of the present invention is
Before performing the scan of the subject placed on the bed, the imaging order information corresponding to the bed position is set for the tomographic image information of the predetermined subject sequentially imaged by the imager, and the tomographic image information is accumulated. Since the tomographic image information sequentially collected by the scan of the specimen is sorted based on the accumulated imaging order information, the tomographic image information is displayed in the sorted order, and the tomographic image is captured by the imager. The film as requested by the operator can be automatically obtained. Therefore, with the image photographing system to which the present invention is applied, it is not necessary to perform manual photographing, and the operability is remarkably improved as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a block diagram of an image photographing system to which a reconstructed image photographing method of the present invention is applied, FIG. 2 is a flowchart showing a processing flow of an embodiment of the present invention, and FIGS. 3 and 4 are the present invention. FIG. 5 is a flowchart showing the processing flow of each of the other embodiments, and FIG. 5 is a block diagram of a conventional image capturing system. DESCRIPTION OF SYMBOLS 1 ... Host CPU, 2 ... Reconfigurator 3, ... Imager controller, 4 ... Imager 5 ... Image display device, 6 ... Image storage device 7 ... Sorting information storage device

Claims (1)

[Claims] 1. A reconstructed image capturing apparatus for sequentially capturing a plurality of tomographic image information sequentially collected and reconstructed by scanning an object placed on a bed by a designated modality in an imager, Before the scan is performed, the imaging order information is set in the imager according to the bed position of the tomographic image information of a predetermined subject to be sequentially imaged, and the accumulating means for accumulating the imaging order information and the sequential acquisition by the scan. The display device further comprises sorting means for sorting the tomographic image information to be sorted based on the imaging order information stored in the storing means, and display means for displaying the tomographic image information in the order sorted by the sorting means. A reconstructed image photographing apparatus, wherein the tomographic image information displayed on the means is photographed by the imager.