JP2017054281A - Analysis result report creation device based on medical image data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device that reduces complexity of work, and can reduce creation of an incorrect report due to input error.MEANS: Medical inspection image acquisition means 2 captures DICOM data, records the data into a recording unit 10 as a medical inspection image 12. Reporting image incorporation means 4 reads out an analysis result report format 14 from the recording unit 10, and incorporates a reporting image created based on the medical inspection image into the format. First inspection information incorporation means 6 acquires corresponding inspection information from a DICOM header of the medical inspection image 12, and incorporates the information into inspection information items (items such as patient information and inspection condition information) of the analysis result report format 14. Second inspection information incorporation means 8 incorporates the inspection information regarding items into which the inspection information is not incorporated by the first inspection information incorporation means 6. Output means 16 outputs the analysis result report.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique for creating an analysis result report based on medical image data.

  Image diagnosis using SPECT, PET, MRI, CT, etc. is widely used in the medical field because it can objectively grasp the pathological condition. In image diagnosis, a report for using these images is created. The report describes not only the image but also information (examination information) for identifying the patient and clarifying the examination conditions. If the ability of the person in charge of report preparation is inadequate, such as inexperienced reports, necessary information may not be written as inspection information.

  There is a need for a device that can eliminate such individual differences and generate a report at a certain level.

  In Patent Document 1, a DB that stores patient information and the like, and a DB that stores background information of examinations are created. When an image such as SPECT is recorded, a DB that is stored in association with the patient information and the like is created. Like to do. In addition, when creating a report, the patient information, background information, and the like are inserted into a standard report form to complete the report.

  Therefore, according to the apparatus of Patent Document 1, patient information and background information necessary for a report are defined as a format, and a report at a certain level that does not depend on the creator can be created.

Japanese Patent No. 5288655

  However, the prior art as described above has the following problems.

  In the above prior art, it is necessary to create a patient information DB and a background information DB in advance, and then create a DB that stores images associated with these information. For this reason, it is necessary to generate these DBs separately, which not only makes the work complicated, but also may cause input errors such as patient information and background information. If there was such an input mistake, there was a problem that an incorrect report would be created.

  An object of the present invention is to solve the conventional problems as described above, to reduce the complexity of work, and to provide an apparatus capable of reducing erroneous report creation due to an input error.

  Several independently applicable features of the invention are listed below.

(1) (3) (5) The analysis result report creating apparatus according to the present invention includes a medical examination image acquisition means for acquiring a medical examination image in DICOM data format, and an examination information item in the format of the analysis result report. The first examination information incorporating means for acquiring and incorporating corresponding examination information from the DICOM header of the obtained DICOM format medical examination image, and no examination information is incorporated by the first examination information incorporating means The examination information item includes second examination information incorporation means for obtaining and incorporating examination information based on data other than the acquired DICOM format medical examination image or an operation of the operator.

  Therefore, it is possible to reduce the complexity of the work and to reduce erroneous report creation due to an input error.

(2) (4) (6) The analysis result report creation apparatus according to the present invention comprises a report image generation means for generating a report image for an analysis result report based on a medical examination image, and an operator's operation Or a report image incorporating means for incorporating the generated report image into the image area in the format of the analysis result report in accordance with a rule associated in advance.

  Therefore, a report incorporating a report image can be generated.

(7) The analysis result report creating apparatus according to the present invention is characterized in that the first inspection information incorporating means acquires corresponding inspection information from the DICOM header according to the DICOM standard.

  Therefore, inspection information can be easily acquired and incorporated.

(8) The analysis result report creating apparatus according to the present invention is characterized in that the first inspection information incorporating means acquires corresponding inspection information from the DICOM header according to a rule defined as a private tag.

  Therefore, inspection information that does not exist in the DICOM standard can be easily incorporated.

(9) The analysis result report creating apparatus according to the present invention is characterized in that the medical examination image is a tomographic image of the brain or heart.

  Therefore, a report based on these tomographic images can be easily created.

(10) The analysis result report creation method according to the present invention is a method of creating an analysis result report by a computer, wherein the computer acquires a medical examination image with header information, and the computer In the examination information item in the report format, the corresponding examination information is acquired from the header of the acquired medical examination image, and the computer incorporates the examination information item in which the examination information is not incorporated by the incorporation step. Examination information is obtained and incorporated based on data other than the obtained medical examination image or an operator's operation.

  Therefore, it is possible to reduce the complexity of the work and to reduce erroneous report creation due to an input error.

  In the embodiment, “medical examination image acquisition means” corresponds to step S1.

  In the embodiment, “report image generating means” corresponds to step S6.

  In the embodiment, “report image incorporation means” corresponds to step S10.

  In the embodiment, “first inspection information incorporation means” corresponds to step S10.

  In the embodiment, “second inspection information incorporation means” corresponds to steps S5 and S11.

  “Examination information” refers to information related to the examination described in the analysis result report, and is a concept including patient information, an examiner, examination conditions, and the like.

  The “program” is a concept that includes not only a program that can be directly executed by the CPU, but also a source format program, a compressed program, an encrypted program, and the like.

It is a functional block diagram of the analysis result report preparation apparatus by one Embodiment of this invention. It is a hardware configuration of an analysis result report creation apparatus. It is a flowchart of an analysis result report preparation program. It is a flowchart of an analysis result report preparation program. It is an example of a DICOM header. It is an example of DICOM data. It is a figure which shows the screen which acquired test | inspection information from DICOM data. It is a figure which shows the screen which displayed the test | inspection information input by the operator. It is a figure which shows the display principle of Polar Map. It is the example of a screen which displayed Polar Map. It is the example of a screen which displayed the analysis image (report image). It is a figure which shows the format of an analysis result report. This is the format data of the analysis result report. This is an example of a screen in which an analysis image is incorporated into the format of the analysis result report. It is an example of a screen in which examination information input by an operator is added and incorporated. It is an example of analysis result report data. It is the whole structure by other embodiment.

1. Functional Block Diagram FIG. 1 shows a functional block diagram of an analysis result report creation apparatus according to an embodiment of the present invention. The medical examination image acquisition unit 2 takes in DICOM data that is a medical examination image and records it as a medical examination image 12 in the recording unit 10. The report image incorporating means 4 reads the analysis result report form 14 from the recording unit 10 and incorporates the report image generated based on the medical examination image. This incorporation may be performed based on an instruction from the operator, or may be performed according to a predetermined rule.

  The first examination information incorporation means 6 acquires examination information corresponding to examination information items (items such as patient information and examination condition information) of the analysis result report form 14 from the DICOM header of the medical examination image 12. Include. As described above, since the examination information set in the medical examination image 12 at the time of examination is used as it is, an input error can be prevented and complexity can be eliminated.

  The second inspection information incorporation means 8 incorporates inspection information for items for which inspection information is not incorporated by the first inspection information incorporation means 6. This incorporation may be performed by operator input, or may be obtained from other data (such as medical record data) and fitted.

The output means 16 outputs the analysis result report generated as described above. For example, printing is performed by a printer or data is transmitted to a designated terminal device.

2. Hardware Configuration FIG. 2 shows a hardware configuration of the analysis result report creation apparatus. A memory 32, a display 34, a printer 36, a hard disk 38, a DVD-ROM drive 40, a keyboard / mouse 42, and a communication circuit 44 are connected to the CPU 30. The communication circuit 44 is for connecting to the hospital LAN 54. Thereby, a medical examination image from the SPECT device 56 can be acquired via the hospital LAN 54.

The hard disk 38 stores an operating system 46, an analysis result report creation program 48, an analysis result report format 50, and the like. The analysis result report creation program 48 functions in cooperation with the operating system 46. These programs are those recorded on the DVD-ROM 52 and installed on the hard disk 38 via the DVD-ROM drive 40.

3. Processing of Analysis Result Report Creation Program 48 In the following, a nuclear medicine image for the myocardium will be described as an example, but it is not intended to be limited to this.

  FIG. 3 shows a flowchart of the analysis result report creation program 48. The CPU 30 acquires a myocardial scintigraphic short-axis tomographic image from the SPECT device 56 (step S1). In this embodiment, the tomographic image is acquired in the form of DICOM data. The tomographic image may be acquired directly from the SPECT device 56, or may be acquired once stored in a server device (not shown) or the like. The CPU 30 records the acquired tomographic image on the hard disk 38.

  5 and 6 show examples of tomographic image DICOM data recorded on the hard disk 38. FIG. FIG. 5 shows a DICOM header, in which patient information, examination conditions, and the like are described. FIG. 6 shows a portion of image data, in which a tomographic image is recorded.

  Next, the CPU 30 acquires the inspection information item necessary for the analysis result report (step S2), and acquires and incorporates the corresponding inspection information from the DICOM tag of the captured tomographic image (step S3).

  As shown in FIG. 7, the CPU 30 displays a tomographic image on the display 34 and displays examination information items on the left side of the screen. Data with tags 0010 and 0010 in the DICOM header of FIG. 5 indicates the patient name. Therefore, this is incorporated and displayed in the patient name column 60 of FIG. In the DICOM header of FIG. 5, data to which tags 0010 and 0020 are attached indicates a patient ID. Therefore, this is incorporated into the patient ID column 62 of FIG. 7 and displayed. Similarly, data with tags 0010 and 1010 are in the patient age column 64, data with tags 0010 and 0040 are in the patient sex column 66, and data with tags 0008 and 0020 are in the examination date. Data with tags 0008 and 0030 attached to the column 68 are displayed in the inspection time column 70, respectively.

  In this embodiment, since two tomographic images of stress myocardial scintigraphy and rest myocardial scintigraphy are used as one DICOM data, in FIG. 7, 2 of data 1 of stress myocardial scintigraphy and Data2 of resting myocardial scintigraphy. Contains one data set. In this example, since the inspection is performed by the load first day method, the inspection dates of Data1 and Data2 are the same.

  Next, in response to the operator's instruction, the CPU 30 extracts the contour of the left ventricle based on the tomographic image (step S4). For this contour extraction, a conventionally known method can be used. For example, an area having a predetermined value or more is extracted from a stereoscopic image formed by the tomographic image, and the center point of the area is determined. A radiation line with a predetermined angle is assumed from the center point in each radiation direction of longitude and latitude. Among the measurement values in each radiation line, the location of the maximum value is the myocardial wall center point. An outer point that is 65% lower than the measured value of the center point of the myocardial wall is set as an epicardial surface point. These epicardial surface points are connected to estimate the myocardial surface. As a program for performing such processing, for example, Quantitative Perfusion SPECT (QPS) can be used.

  Next, the CPU 30 accepts the operator's input for the examination type (Name) 72 and the medicine type (RIName) 74 of Data1 and Data2 for which data was not incorporated in Step S3 (Step S5). As shown in FIG. 8, the CPU 30 displays the data input from the keyboard / mouse 42 by the operator in the examination type 72 and the medicine type 74 of Data1 and Data2. These inputs may be directly input by the user, or a plurality of examination types and drug types may be recorded in advance and displayed as a pull-down menu or the like.

  Note that there is data that is not input even though it is defined in the standard tag of DICOM data. Also in this case, the operator performs input.

  Next, the CPU 30 generates and displays a Polar Map based on the extracted left ventricular contour (step S6). In this example, the Polar Map is generated, but other display methods may be adopted. Polar Map is for developing and displaying the surface of the myocardium, and a conventionally known method can be used for its creation method.

  For example, in each cross-sectional image from the lower edge (apex) to the upper edge (base) of the left ventricle where the myocardial surface is estimated as described above, the maximum measured value on the radiation line from the center is extracted. Thereby, in each of the tomographic images from the lower edge (apical portion) to the upper edge (base portion) of the left ventricle, a maximum measured value group in the direction from 0 degree to 360 degrees is obtained. As shown in FIG. 9, the maximum measured value group in each tomographic image is the tomogram of the upper edge (heart base) on the outside so that the maximum measured value group in the tomographic image of the lower edge (apex) is on the center side. Arrange sequentially so that the maximum measured value group in the image comes. In this way, a Polar Map is generated. Further, the CPU 30 may generate a 3D map obtained by converting the three-dimensional map. As a program for performing such processing, for example, Quantitative Perfusion SPECT (QPS) can be used.

  The CPU 30 displays the generated Polar Map as shown in FIG. In this embodiment, a Polar Map is generated for each of two types of data, that is, load myocardial scintigraphy and rest myocardial scintigraphy.

  Subsequently, the CPU 30 calculates an evaluation value (such as a cardiac function index) based on the tomographic image (step S7). For example, the difference between the average measured value of the loaded myocardial scintigraphy (Data1) and the average measured value of the resting myocardial scintigraphy (Data2) is calculated as an evaluation value for each predetermined region. FIG. 11 shows an example in which the calculated difference between the regions is displayed on a Polar Map and a 3D map. Polar Map 200 shows the measurement average value for each region of the loaded myocardial scintigraphy, Polar Map 202 shows the measurement average value for each region of resting myocardial scintigraphy, and Polar Map 204 shows the difference for each region.

  In this example, the difference between the average measured value of the loaded myocardial scintigraphy (Data 1) and the average measured value of the rest myocardial scintigraphy (Data 2) is calculated as the evaluation value. However, a value obtained by scoring as follows may be calculated as an evaluation value.

  After normalizing the measurement value with the maximum value in the load myocardial scintigraphy as 100, the average value of the measurement values normalized for each predetermined region is calculated. The normalized average value for each area calculated in this way is scored according to the following criteria.

  100 to 75 are 0 points, 74 to 65 are 1 point, 64 to 55 are 2 points, 54 to 45 are 3 points, and 44 to 0 are 4 points.

  The CPU 30 displays the evaluation value calculated as described above in association with a Polar Map, a 3D map, or the like for confirmation (step S8). The display for confirmation may be omitted.

  Subsequently, the CPU 30 acquires the analysis result report format 50 (step S9). A plurality of report formats may be displayed and the operator may select them. FIG. 13 shows an example of format data. FIG. 12 shows a display example based on the format data.

  In FIG. 13, the format is a code for specifying the format of the analysis result report prepared in advance. In FIG. 13, Type-1 is selected.

  The item column is a code for identifying each item of the format Type-1. The name, ID, age, gender, test date, protocol, loading method, tracer (drug type), and dose are items (test information items) in the analysis result report. A-1 and A-2 are codes for identifying an area into which an image is inserted, shown in the format of FIG.

  In the corresponding item column, a corresponding item name of DICOM data or a corresponding item name of data acquired from DICOM data is described. In the example of FIG. 13, the inspection information item name of FIG. 8 is described. For the image, the type of image to be incorporated is described.

  The content column is a column for describing content data corresponding to the item. Here, nothing has been described yet.

  Based on the analysis result report format 50, the CPU 30 incorporates the analysis result image and the inspection information into the corresponding column (step S10). The assembled state is shown in FIG. As shown in this figure, the protocol column 90, the loading method column 92, and the dose column 94 have no data and are blank. The other fields are incorporated based on the data of steps S3 and S5.

  Next, the CPU 30 accepts input of data to the blank protocol column 90, loading method column 92, and dose column 94. When the operator operates the keyboard / mouse 42 to input data in the protocol input field 100, the loading method input field 102, and the dose input field 104, the CPU 30 displays the data in the protocol field 90 as shown in FIG. The load method column 92 and the dose column 94 are incorporated and displayed (step S11). The input field may be generated each time by the CPU 30 in association with a blank display field or may be prepared in advance. Further, data may be entered in the blank protocol column 90, loading method column 92, and dose column 94.

  In the input to the above-described columns 90, 92, 94, 100, 102, 104, etc., the operator may directly input data. May be displayed by the operator.

  In this example, since the load first day method is implemented, the inspection date of Data1 and Data2 is the same, so only one inspection date is displayed in the report (Data1 or Data2). Only one). However, both may be displayed in order to clearly indicate that they are the same examination date.

  In addition, when the inspection dates of Data1 and Data2 are different, it is preferable to display both the inspection date of Data1 and the inspection date of Data2. Even in this case, only one of the examination dates may be displayed in order to avoid complicated display.

  Further, the CPU 30 may determine whether the inspection dates of Data1 and Data2 are the same, and if they are the same, only one inspection date may be displayed, and if they are different, both may be displayed.

  In this example, as shown in FIG. 14, the tracer (drug) and the dose are input as being the same, and are displayed in the report. However, for each of Data1 and Data2, a drug and a dose may be input and displayed in the report. Alternatively, the CPU 30 determines whether or not the drugs and doses of Data1 and Data2 are the same, and if they are the same, the same processing as in the above embodiment is performed, and if they are different, an input field is provided for each of Data1 and Data2. May be.

  The CPU 30 records analysis result report data corresponding to the display of FIG. FIG. 16 shows an example of analysis result report data.

Subsequently, the CPU 30 outputs an analysis result report (step S12). For example, printing is performed by the printer 36. Further, the analysis result report data may be transmitted to a predetermined terminal device via the communication circuit 44.

4). Other embodiments
(1) In the above embodiment, examination information such as a patient name is incorporated according to a tag based on the standard of the DICOM header. However, a private tag may be defined, and other examination information (for example, a protocol or the like) may be automatically incorporated based on the private tag.

(2) In the above embodiment, the operator inputs the inspection information that could not be incorporated from the DICOM header. However, examination information may be acquired from another DB such as an electronic medical record and automatically incorporated.

(3) In the above embodiment, DICOM data is acquired via the hospital LAN. However, it may be taken in via the Internet or may be taken in a recording medium such as a DVD-ROM.

(4) In the above embodiment, the operator operates the analysis result report creation apparatus. However, as shown in FIG. 17, the analysis result report creation apparatus 1 may be constructed as a server apparatus. DICOM data is transmitted from the terminal device 18 to the analysis result report creation device 1 via the Internet or the in-hospital LAN, and the output means 16 of the analysis result report creation device 1 receiving this transmits the analysis result report data. It transmits to the terminal device 18.

  At this time, selection of the report format in step S9 and input in steps S5 and S11 are performed from the terminal device 18.

(5) In the above embodiment, myocardial scintigraphy images have been described as examples. However, brain image, bone, liver, lung, thyroid gland nuclear medicine examination DICOM data and other medical image data with headers are also used. The same can be applied.

(6) In the above embodiment, SPECT images are used, but images such as PET, MRI, and CT may be used.

(7) In the above embodiment, a Polar Map and a 3D map are generated as a report image. However, only one of them may be generated and displayed. The DICOM image itself may be used as a report image as it is. Alternatively, no image may be displayed on the report.

(8) In the above embodiment, the DICOM data has been described as an example. However, the present invention can be applied to data in a format in which inspection information is described as header information or the like.

Claims (10)

An apparatus for creating an analysis result report based on a medical examination image in DICOM data format,
Medical examination image acquisition means for acquiring a medical examination image in DICOM data format;
First examination information incorporating means for obtaining and incorporating the corresponding examination information from the DICOM header of the acquired DICOM format medical examination image into the examination information item in the format of the analysis result report;
For examination information items for which examination information is not incorporated by the first examination information incorporation means, examination information is acquired and incorporated based on data other than the acquired DICOM format medical examination image or the operation of the operator. A second inspection information incorporation means;
Analysis result report creation device equipped with. In the analysis result report creation apparatus according to claim 1,
Report image generating means for generating a report image for an analysis result report based on the medical examination image;
Report image incorporating means for incorporating the generated report image into the image area in the format of the analysis result report based on the operation of the operator or according to a rule associated in advance.
An analysis result report creation apparatus characterized by further comprising: A program for realizing, by a computer, an apparatus for creating an analysis result report based on a medical examination image in DICOM data format,
Medical examination image acquisition means for acquiring a medical examination image in DICOM data format;
First examination information incorporating means for obtaining and incorporating the corresponding examination information from the DICOM header of the acquired DICOM format medical examination image into the examination information item in the format of the analysis result report;
For examination information items for which examination information is not incorporated by the first examination information incorporation means, examination information is acquired and incorporated based on data other than the acquired DICOM format medical examination image or the operation of the operator. An analysis result report creation program for functioning as second inspection information incorporation means. In the analysis result report creation program according to claim 3, a computer is further included.
Report image generating means for generating a report image for an analysis result report based on the medical examination image;
Analysis result for functioning as a report image incorporating means for incorporating the generated report image into the image area in the format of the analysis result report based on the operation of the operator or according to a rule associated in advance Report creation program. A server device that creates an analysis result report based on a medical examination image in DICOM data format,
Medical examination image acquisition means for acquiring a medical examination image in DICOM data format from the terminal device;
First examination information incorporating means for obtaining and incorporating the corresponding examination information from the DICOM header of the acquired DICOM format medical examination image into the examination information item in the format of the analysis result report;
A second inspection information item in which the inspection information is not incorporated by the incorporating means is acquired and incorporated based on the data other than the acquired DICOM format medical examination image or the operation of the operator of the terminal device. Inspection information integration means;
An output means for outputting the generated analysis result report;
An analysis result report creation server device comprising: The server device according to claim 5, wherein
Report image generating means for generating a report image for an analysis result report based on the medical examination image;
Report image incorporating means for incorporating the generated report image into the image area in the format of the analysis result report based on the operation of the operator of the terminal device or according to a rule associated in advance.
An analysis result report creation server device characterized by further comprising: In the apparatus or program in any one of Claims 1-6,
The first inspection information incorporating means obtains corresponding inspection information from a DICOM header according to the DICOM standard. In the apparatus or program in any one of Claims 1-7,
The first inspection information incorporating means acquires corresponding inspection information from a DICOM header according to a rule defined as a private tag. In the apparatus or program in any one of Claims 1-8,
The medical examination image is a medical image of a heart, brain, bone, liver, lung or thyroid gland. A method for creating an analysis result report by a computer,
The computer obtains a medical examination image with header information,
The computer acquires and incorporates the corresponding examination information from the header of the acquired medical examination image into the examination information item in the format of the analysis result report,
Analysis in which a computer acquires and incorporates examination information based on data other than the acquired medical examination image or an operation of an operator for examination information items in which examination information is not incorporated by the incorporation step Result report creation method.