JP2013005953A - Method of creating image data for radiogram interpretation and image data file for radiogram interpretation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of creating image data for radiogram interpretation capable of creating the creating image data for the radiogram interpretation which is high in perspicuity, and is low in the degree of dependence on equipment performance.SOLUTION: The method of creating the image data for the radiogram interpretation includes: an original image data acquisition process for acquiring first image data in which right-and-left breasts are taken by mammography from internal-and-external oblique directions, and second image data in which the right-and-left breasts are taken by the mammography from a craniocaudal direction; a first image data preparation process for creating third image data in which the image data of the right-and-left breasts are disposed in parallel with regard to the first image data; a second image data preparation process for creating fourth image data in which the image data are disposed as described above with regard to the second image data; an auxiliary data creating process for creating auxiliary data including remarks on the radiogram interpretation with regard to the first image data and the second image data or the like; and a data integration process for integrating the third image data, the fourth image data and the auxiliary data into one group of electronic data so as to create the image data for the radiogram interpretation.

Description

  The present invention relates to a technique for processing medical image data imaged by an X-ray imaging apparatus.

  Mammography is an image diagnostic method that is performed by X-raying a human breast and is effective in the early detection of breast cancer (Kojien 6th edition). Further, the mammography apparatus refers to a mammography apparatus for performing the image diagnostic method.

  With regard to mammography, for example, a medical image diagnosis support apparatus that can reduce fatigue of an interpreting doctor who visually compares images has been proposed (Patent Document 1, etc.).

JP 2011-72374 A

However, image data used in the prior mammography, for example, DICOM (D igital I maging and Co mmunication
As in the in M edicine) format, it used a unique image format is larger model dependent, and since the data size is large, use environment of the image data has a problem of being restricted.

  In addition, since the image data conventionally used in mammography is managed individually, it is necessary to extract the related image data when comparing the related image data. There was also a problem that it took time and effort.

  Further, in conventional mammography, interpretation is often performed using photographs after development of image data, and carrying a large number of photographs has a problem that physical difficulties are involved.

  Therefore, in the present invention, in view of the above-described problems, the interpretation image in mammography itself, which has a high listability that can be used in training for improving the interpretation technique, and has a low degree of device performance dependency. The purpose is to provide a data creation method.

  One form of the disclosed method for creating image data for image interpretation is original image data photographed by a mammography apparatus, and includes first image data and right and left breast images taken from the left and right oblique directions. An original image data acquisition step for acquiring second image data relating to each of the captured right and left breasts, and image data relating to the left breast and image data relating to the right breast are arranged in parallel for the first image data. First image data processing step for generating third image data, and fourth image data in which image data relating to the left breast and image data relating to the right breast are arranged in parallel for the second image data The second image data processing step, the image interpretation findings and the original image data relating to the first image data and the second image data. Attached data creation step of creating the associated data including the shadowed patient examination result or the final pathological result of the patient, the third image data, the fourth image data, and the accompanying data as one electronic data And a data integration step of creating image data for interpretation.

  The method of creating the image data for interpretation to be disclosed is an image for interpretation that has a high listability and can be used in training to improve the interpretation technology in mammography itself, and has low dependence on equipment performance. Data can be created.

It is an example of the flowchart which shows the flow of the production method of the image data for interpretation based on this Embodiment. It is a figure for demonstrating the imaging | photography direction by the mammography apparatus which concerns on this Embodiment. It is a figure which shows the example of the image data (1st image data) by the inside / outside oblique direction imaging | photography by the mammography apparatus which concerns on this Embodiment. It is a figure which shows the example of the image data (2nd image data) by head-to-tail imaging | photography by the mammography apparatus which concerns on this Embodiment. It is a figure which shows an example of the 3rd image data based on this Embodiment. It is a figure which shows an example of the 4th image data which concerns on this Embodiment. It is a figure which shows an example of the image data for interpretation based on this Embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the drawings. A method of creating image data for interpretation (hereinafter, simply referred to as “image data creation method”) 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a flowchart for explaining the flow of the image data creation method 1.

  The image data creation method 1 can be easily handled based on the photographing result 20 by the mammography device 10 in interpretation performed by a doctor or training for improving interpretation technology, but is very useful in practice. This is a method of creating image interpretation image data 30.

  Here, the photographing result 20 by the mammography apparatus 10 is, for example, image data stored in the DICOM format or image data in a reversible format obtained by converting the DICOM format image data. The image data for image interpretation 30 is an image created in an image data format that is less dependent on the performance of the device that displays the image data, such as PDF (Portable Document Format) or JPEG (Joint Photographic Experts Group) format. It is data.

In S10, the mammography apparatus 10 performs X-ray imaging on the left and right breasts of a predetermined patient 110. As shown in FIG. 2 (a), the mammography device 10, for each breast of the left and right of the patient 110, performs X-ray imaging from the inner and outer oblique direction {MLO (M edio l ateral O blique) View}, 2 as shown in (b), for each breast of the left and right of the patient 110 performs X-ray imaging from the cranio-caudal {CC (C ranio c audal) View}. That is, the imaging results 20 by the mammography apparatus 10 include a total of four imaging results, at least two for the MLO View and two for the CC View.

  FIG. 3 shows an example of image data 40 of MLO View, and FIG. 4 shows an example of image data 50 of CC View. As shown in FIGS. 3 and 4, the image data 40 and 50 of the MLO View and CC View respectively have roughly symmetrical shadows. However, in FIGS. 3 and 4 (a) and 4 (b), for convenience, the vertical and horizontal positions of the shadow are aligned, but in the original image data 40 and 50, these positions are illustrated. They are not all together. Also, the diagonal lines in FIGS. 3 (a) and 3 (b) indicate the shadows of muscle fibers that appear in the X-ray image taken with the MLO View.

  In S20, the mammography apparatus 10 stores, for example, DICOM format image data and a set of images in the image server 60 for accumulating the photographing results 20 of the mammography apparatus 10 for at least the four image data 40 and 50. Save as data. Here, a set of image data refers to an image data group including at least two MLO View image data 40 and two CC View image data 50 and a total of four image data related to one patient 110. However, the number of image data may be four or more by including other image data taken extra.

  In S30, the user terminal 70 extracts and acquires a set of image data (for example, DICOM format data) 40 and 50 stored in the image server 60 in S10. At this time, the image data 40 and 50 acquired by the user terminal 70 may be DICOM format image data, and JPEG format image data in which the data size of the original image data is reduced (for example, 60% of the original image data). ~ 100%).

  In S <b> 40, the user terminal 70 generates one image data 80 in which two image data 40 taken in the internal and external oblique directions of the left and right breasts of the patient 110 are arranged in parallel based on a user operation. As shown in FIG. 5, in S <b> 40, an image in which the image in FIG. 3A is arranged on the left side and the image in FIG. 3B is arranged on the right side is generated as one image data 80. At this time, as shown in FIG. 5, in the image data 80, a black line may be inserted at the boundary between the left image and the right image. By doing so, the interpretation work by the interpretation doctor is facilitated.

  Further, as shown in FIG. 5, as for the left side image and the right side image in the image data 80, the vertical position and the horizontal position of the shadow are aligned and arranged in parallel so that the image as a photographing result is symmetrical. Also good. Thereby, the image interpretation doctor can easily perform a diagnosis based on the comparison of the left and right breasts.

  On the other hand, although not shown in FIGS. 3A and 3B, the original image data 40 photographed by the mammography apparatus 10 usually includes a white margin. This margin part may increase the contrast ratio of the image to be interpreted and hinder interpretation. Therefore, in S40, the white margin portions (upper and lower left and right edges of the image) may be removed (deleted) from the two pieces of image data 40 arranged in parallel. This makes it easier for an interpreting physician to perform interpretation.

  In S50, the user terminal 70 generates one image data 90 in which two image data 50 taken in the head-to-tail direction for the left and right breasts of the patient 110 are arranged in parallel based on a user operation. As shown in FIG. 6, in S <b> 50, an image in which the image in FIG. 4A is arranged on the left side and the image in FIG. 4B is arranged on the right side is generated as one image data 90. At this time, as shown in FIG. 6, in the image data 90, a black line may be inserted at the boundary between the left image and the right image. By doing so, the interpretation work by the interpretation doctor is facilitated.

  Further, as shown in FIG. 6, the left and right images in the image data 90 are arranged in parallel so that the vertical positions and the horizontal positions of the shadows are aligned so that the image that is the imaging result is symmetrical. Also good. Thereby, the image interpretation doctor can easily perform a diagnosis based on the comparison of the left and right breasts.

  On the other hand, although not shown in FIGS. 4A and 4B, the original image data 50 captured by the mammography apparatus 10 usually includes a white margin. This margin part may increase the contrast ratio of the image to be interpreted and hinder interpretation. Therefore, in S50, the white margin portions (upper and lower left and right edges of the image) may be removed (deleted) from the two image data 50 arranged in parallel. This makes it easier for an interpreting physician to perform interpretation.

  In S60, the user terminal 70 creates accompanying data 100 describing "interpretation findings", "findings of various examinations", "pathological findings", and the like related to the patient 110 that has taken a breast in S10 based on a user operation. Here, the accompanying data enhances the learning effect for the inexperienced person by describing "interpretation findings", "findings of various examinations", "pathological findings", etc. by those who have relatively many interpretation experiences as an interpreting physician. Can do.

  In S <b> 70, the user terminal 70 integrates the image data 80 and 90 and the accompanying data 100 created in S <b> 40 to S <b> 60 as one electronic data 30 based on a user operation. As shown in FIG. 7, for example, the image data 80 created in S40 is arranged on the first page, the image data 90 created in S50 is arranged on the second page, and the accompanying data 100 created in S60 on the third page. One piece of electronic data 30 is created so that By doing so, the image interpretation doctor operates one electronic data file 30 so that, in addition to the MLO View image data 40 and CC View image data 50 necessary for image interpretation, these image data are related to a predetermined patient 110. The “interpretation findings”, “findings of various examinations”, and “pathological findings” 100 based on the above can be referred to at once.

  In S80, the user terminal 70 outputs the electronic data 30 created in S70 as electronic data in a predetermined format based on a user operation. Here, the electronic data in a predetermined format is electronic data in PDF or JPEG format. Since the image data in PDF or JPEG format is a data format with a small file size and low dependence on device performance, the imaging results 40 and 50 by the mammography apparatus 10 and a wide range of situations can be used without limiting the usage scene. The accompanying data 100 such as “interpretation findings”, “findings of various examinations”, and “pathological findings” can be referred to at a time. Also, the electronic data 30 output in S80 can be recorded on a recording medium such as a USB (Universal Serial Bus) memory or an SD (Secure Digital) memory card and used when necessary.

  Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the specific embodiment, and various modifications are possible within the scope of the gist of the present invention described in the claims.・ Change is possible.

DESCRIPTION OF SYMBOLS 1 Image-reading image data creation method 10 Mammography device 20 Imaging result 30 by mammography device Image interpretation image data 40 First image data 50 Second image data 60 Image server 70 User terminal 80 Third image data 90 Fourth Image data 100 Accompanying data 110 Patient

Claims (11)

Original image data obtained by imaging a test site that is a part of a human body by an X-ray imaging apparatus, and first image data taken from a first direction and second image data taken from a second direction An original image data acquisition process for acquiring
With respect to the first image data and the second image data, an accompanying data creation step of creating accompanying data including an interpretation finding, a test result of a patient who has taken the original image data, or a final pathological result of the patient;
A method of creating interpretation image data, comprising: a data integration step of integrating the first image data, the second image data, and the accompanying data as one electronic data to create interpretation image data. Original image data taken by a mammography apparatus, the first image data relating to the left and right breasts taken from the inner and outer oblique directions and the second image relating to the left and right breasts taken from the head-tail direction An original image data acquisition step for acquiring image data;
A first image data processing step for generating third image data in which image data relating to the left breast and image data relating to the right breast are arranged in parallel with respect to the first image data;
A second image data processing step of generating fourth image data in which the image data relating to the left breast and the image data relating to the right breast are arranged in parallel for the second image data;
An incidental data creation step for creating incidental data relating to the first image data and the second image data, including interpretation findings, examination results of a patient who has taken the original image data, or final pathology results of the patient;
A method of creating interpretation image data, comprising: a data integration step of integrating the third image data, the fourth image data, and the accompanying data as one electronic data to create interpretation image data.   The black line is drawn at a boundary between the image data related to the left breast and the image data related to the right breast in the first image data processing step and the second image data processing step. The method for creating image data for interpretation described in 2.   In the first image data processing step and the second image data processing step, the vertical, horizontal, and horizontal positions are set so that the imaging results are symmetrical with respect to the image data related to the left breast and the image data related to the right breast. 4. The image interpretation image data creation method according to claim 2, wherein adjustment is performed.   In the first image data processing step and the second image data processing step, in order to shape the third image data and the fourth image data, image data related to the left breast and an image related to the right breast 5. The image interpretation image data generation method according to claim 2, wherein an end portion which is a blank portion of each data is removed. Data format of the original image data, DICOM (D igital I maging and Co mmunication
It is in M edicine) format,
6. The image data generation method for image interpretation according to claim 2, wherein a data format of the image data for image interpretation is a PDF (Portable Document Format) or a JPEG (Joint Photographic Experts Group) format. . Original image data photographed by a mammography apparatus, and for the first image data relating to the left and right breasts taken from the inside and outside oblique directions, the image data relating to the left breast and the image data relating to the right breast are paralleled. The arranged third image data;
Original image data photographed by the mammography, the second breast image data of the left and right breasts photographed from the head-tail direction, the image data on the left breast and the image data on the right breast are arranged in parallel The fourth image data,
Interpretation findings regarding the third image data, the fourth image data, the first image data, and the second image data, the examination result of the patient who captured the original image data, or the final result of the patient An image data file for image interpretation in which accompanying data including pathological results are integrated as one electronic data file.   The black line is drawn on the boundary between the image data relating to the left breast and the image data relating to the right breast in the third image data and the fourth image data. Item 8. The image data file for interpretation according to item 7.   In each of the third image data and the fourth image data, the vertical and horizontal positions of the image data related to the left breast and the image data related to the right breast are adjusted so that the imaging results are symmetrical. The image data file for image interpretation according to claim 7 or 8, wherein the image data file for image interpretation.   In order to shape the third image data and the fourth image data, edges that are blank portions of the image data relating to the left breast and the image data relating to the right breast are removed. The image data file for interpretation according to any one of claims 7 to 9. The data format of the original image data is DICOM format,
The image data file for interpretation according to any one of claims 7 to 10, wherein a data format of the image data file for interpretation is a PDF or JPEG format.

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