JP6765795B2 - Analysis result report creation device based on medical image data - Google Patents

Description

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

Imaging diagnosis using SPECT, PET, MRI, CT, etc. is widely used in the medical field because it can objectively grasp the pathological condition. In diagnostic imaging, a report is created to use these images. In the report, not only the image but also information (test information) for identifying the patient and clarifying the test conditions is described. If the person in charge of report preparation is inexperienced or has insufficient ability, the necessary information may not be described as inspection information.

There is a demand for a device that can produce a certain level of report without such individual differences.

In Patent Document 1, a DB that stores patient information and the like and a DB that stores background information of examinations are created in advance, and when an image such as SPECT is recorded, a DB that is stored in association with the patient information and the like is created. I try to do it. On top of that, when creating the report, these patient information, background information, etc. are fitted into the standard report format to complete the report.

Therefore, according to the apparatus of Patent Document 1, patient information and background information necessary for the report are defined as a format, and a certain level of report can be prepared regardless of the creator.

Japanese Patent No. 5288655

However, the above-mentioned conventional techniques have the following problems.

In the above-mentioned prior art, it is necessary to create a patient information DB and a background information DB in advance, and then create a DB in which an image is stored in association with these information. Therefore, it is necessary to generate these DBs separately, which not only makes the work complicated, but also may cause an input error such as patient information and background information. If there is such a typo, there is a problem that an erroneous report will be created.

An object of the present invention is to provide an apparatus capable of solving the above-mentioned conventional problems, reducing the complexity of work, and reducing the creation of an erroneous report due to an input error.

Some of the independently applicable features of the present invention are listed below.

(1) (3) (5) The analysis result report creating apparatus according to the present invention includes the medical examination image acquisition means for acquiring the medical examination image in the DICOM data format and the inspection information item in the analysis result report format. , The inspection information is not incorporated by the first inspection information incorporating means for acquiring and incorporating the corresponding inspection information from the DICOM header of the acquired DICOM format medical examination image and the first inspection information incorporating means. Regarding the inspection information item, it is provided with a second inspection information incorporating means for acquiring and incorporating the inspection information based on the data other than the acquired DICOM format medical inspection image or the operation of the operator.

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

(2) (4) (6) The analysis result report creating apparatus according to the present invention is a report image generation means for generating a report image for an analysis result report based on a medical examination image, and an operation of an operator. A report image embedding means for incorporating the generated report image into the image area in the format of the analysis result report is provided based on the above or according to a rule associated in advance.

Therefore, it is possible to generate a report incorporating the report image.

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

Therefore, inspection information not included in the DICOM standard can be easily incorporated.

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

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

(10) The analysis result report creation method according to the present invention is a method of creating an analysis result report by a computer, in which the computer acquires a medical examination image with header information and the computer obtains the analysis result. Regarding the inspection information item in the form of the report, the corresponding inspection information is acquired from the header of the acquired medical examination image and incorporated, and the computer incorporates the inspection information item in which the inspection information is not incorporated by the incorporation step. It is provided that examination information is acquired and incorporated based on data other than the acquired medical examination image or an operation of an operator.

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

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

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

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

In the embodiment, step S10 corresponds to the "first inspection information incorporating means".

In the embodiment, steps S5 and S11 correspond to the "second inspection information incorporating means".

"Test information" refers to information related to the test described in the analysis result report, and is a concept including patient information, an examiner, test 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 making apparatus by one Embodiment of this invention. This is the hardware configuration of the analysis result report creation device. It is a flowchart of the analysis result report creation program. It is a flowchart of the analysis result report creation program. This is an example of a DICOM header. This is an example of DICOM data. It is a figure which shows the screen which acquired the inspection information from DICOM data. It is a figure which shows the screen which displayed the inspection information input by the operator. It is a figure which shows the display principle of Polar Map. This is an example of a screen displaying Polar Map. This is an example of a screen displaying an analysis image (report image). It is a figure which shows the format of the 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 or the like is incorporated into the format of the analysis result report. This is an example of a screen in which inspection information input by the operator is added and incorporated. This is an example of analysis result report data. It is an overall configuration according to another embodiment.

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

The first examination information incorporating means 6 acquires the examination information corresponding to the 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. Incorporate. In this way, since the test information set in the medical test image 12 is used as it is at the time of the test, it is possible to prevent an input error and eliminate the complexity.

The second inspection information incorporating means 8 incorporates the inspection information for the items for which the inspection information is not incorporated by the first inspection information incorporating means 6. This embedding may be input by the operator, or may be acquired from other data (medical record data, etc.) and fitted.

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

2. Hardware configuration Figure 2 shows the hardware configuration of the analysis result report creation device. 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. As a result, a medical examination image from the SPECT device 56 can be acquired via the in-hospital LAN 54.

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

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

FIG. 3 shows a flowchart of the analysis result report creation program 48. The CPU 30 acquires a myocardial scintigraphy 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, but may be 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. 5 is a DICOM header portion, and patient information, examination conditions, and the like are described. FIG. 6 is a part of image data, and a tomographic image is recorded.

Next, the CPU 30 acquires the inspection information items required 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 inspection information items on the left side of the screen. The data tagged with 0010,0010 in the DICOM header of FIG. 5 indicates the patient's name. Therefore, this is incorporated and displayed in the patient name column 60 of FIG. In the DICOM header of FIG. 5, the data tagged with 0010,0020 indicates the patient ID. Therefore, this is incorporated and displayed in the patient ID column 62 of FIG. Similarly, the data tagged with 0010,1010 is in the patient age column 64, the data tagged with 0010,0040 is the patient gender column 66, and the data tagged with 0008,0020 is the examination date. The data tagged with 0008,0030 in the column 68 is incorporated and displayed in the inspection time column 70, respectively.

In this embodiment, two tomographic images of stressed myocardial scintigraphy and resting myocardial scintigraphy are used as one DICOM data. Therefore, in FIG. 7, Data1 of loaded myocardial scintigraphy and Data2 of resting myocardial scintigraphy are shown in FIG. Contains two datasets. In this example, since the inspection is performed by the load precedent one-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, a region having a predetermined value or more is extracted on a stereoscopic image formed by a tomographic image, and the center point of the region is determined. From this center point, it is assumed that radiation lines are provided at predetermined angles in the longitude and latitude radiation directions. In the measured values in each radiation line, the point of the maximum value is set as the center point of the myocardial wall. The outer point that is 65% lower than the measured value of the myocardial wall center point is defined as the epicardial surface point. These adventitial surface points are connected and the myocardial surface is estimated. As a program that performs such processing, for example, Quantitative Perfusion SPECT (QPS) or the like can be used.

Next, the CPU 30 accepts the input of the operator for the inspection type (Name) 72 and the drug type (RIName) 74 of Data1 and Data2 in which the 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 inspection type 72 and the drug type 74 of Data1 and Data2. It should be noted that these inputs may be directly input by the user, but a plurality of test types and drug types may be recorded in advance and displayed as a pull-down menu or the like for selection.

Note that some data is not input even if it is defined in the standard tag of DICOM data. Also in this case, the operator should input.

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

For example, in each cross-sectional image of the lower edge (apex) to the upper edge (heart base) of the left ventricle whose surface is estimated above, the maximum measured value on the radiation line from the center is extracted. As a result, in each tomographic image from the lower edge (apex) to the upper edge (heart base) of the left ventricle, the maximum measured value group in the direction from 0 degree to 360 degree can be obtained. As shown in FIG. 9, the maximum measured value group in each tomographic image is the upper edge (heart base) fault on the outside so that the maximum measured value group in the tomographic image of the lower edge (apex) comes to the center side. Arrange them in order 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 in which this is three-dimensionalized. As a program that performs such processing, for example, Quantitative Perfusion SPECT (QPS) or the like can be used.

The CPU 30 displays the generated Polar Map as shown in FIG. In this embodiment, Polar Maps are generated for each of the two data, stress myocardial scintigraphy and resting myocardial scintigraphy.

Subsequently, the CPU 30 calculates an evaluation value (cardiac function index or the like) based on the tomographic image (step S7). For example, the difference between the average measured value of stress myocardial scintigraphy (Data1) and the average measured value of 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 the Polar Map and the 3D map. Polar Map 200 shows the measured average value for each region of stress myocardial scintigraphy, Polar Map 202 shows the measured 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 stress myocardial scintigraphy (Data1) and the average measured value of resting myocardial scintigraphy (Data2) is calculated as an evaluation value. However, the value obtained by scoring as follows may be calculated as the evaluation value.

After normalizing the measured values with the maximum value in stress myocardial scintigraphy as 100, the average value of the normalized measured values is calculated for each predetermined region. The normalized mean value for each region 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 associates the evaluation value calculated as described above with a Polar Map, a 3D map, or the like, and displays it for confirmation (step S8). The display for confirmation may be omitted.

Subsequently, the CPU 30 acquires the analysis result report format 50 (step S9). It should be noted that a plurality of report formats may be displayed and the operator may be allowed to select them. FIG. 13 shows an example of format data. FIG. 12 shows a display example based on this 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 the items of the analysis result report (test information items). A-1 and A-2 are codes for identifying the area into which the image is inserted, as shown in the format of FIG.

In the corresponding item column, the corresponding item name of the DICOM data or the corresponding item name of the data acquired from the DICOM data is described. In the example of FIG. 13, the inspection information item name of FIG. 8 is described. Further, for the image, the type of the image to be incorporated and the like are described.

The content column is a column for describing the content data corresponding to the item. Nothing has been described here yet.

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

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

In the input to the above fields 90, 92, 94, 100, 102, 104, etc., the operator may directly input the data, but the data prepared in advance for each field may be pulled-down menu or the like. It may be displayed with and the operator may select it.

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

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, in order to avoid complication of display, only one of the inspection dates may be displayed.

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

In this example, as shown in FIG. 14, the tracer (drug) and the dose are input assuming that they are the same, and are displayed in the report. However, you may enter the drug and dosage for Data1 and Data2, respectively, and display them in the report. Alternatively, the CPU 30 determines whether 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, input fields are provided and displayed for each of Data1 and Data2. You may.

The CPU 30 records the analysis result report data corresponding to the display of FIG. 15 on the hard disk 38. 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's name is incorporated according to a tag based on the DICOM header standard. However, you may define a private tag based on which other inspection information (eg, protocol, etc.) may be automatically included.

(2) In the above embodiment, the operator inputs the inspection information that cannot be incorporated from the DICOM header. However, the inspection 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 in-hospital LAN. However, it may be imported via the Internet, or it may be imported from a recording medium such as a DVD-ROM.

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

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

(5) In the above embodiment, the image of myocardial scintigraphy has been described as an example, but DICOM data of nuclear medicine examinations such as brain image, bone, liver, lung, and thyroid gland and medical image data having other headers are also used. It can be applied in the same way.

(6) In the above embodiment, the image of SPECT is used, but the image of PET, MRI, CT or the like may be used.

(7) In the above embodiment, the Polar Map and the 3D map are generated as reporting images. However, only one of them may be generated and displayed. Moreover, the DICOM image itself may be used as a report image as it is. Alternatively, the image may not be displayed in the report.

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

Claims (14)

A device that creates analysis result reports based on medical examination images in DICOM data format.
Medical examination image acquisition means for acquiring medical examination images in DICOM data format,
Among the test information items in the analysis result report format, the patient name, patient ID, patient age, patient gender, test date or test time, the corresponding test information from the DICOM header of the acquired DICOM format medical test image. The first inspection information embedding means to acquire and incorporate
For the test information item in which the test information is not incorporated by the first test information incorporating means, the second test information is acquired and incorporated from the already generated data other than the acquired DICOM format medical test image. Inspection information embedding means and
In the analysis result report creation device equipped with
An analysis result report creating device characterized in that the already generated data other than the acquired DICOM format medical examination image includes medical record data. In the analysis result report creating apparatus of claim 1,
The second examination information incorporating means is input based on the operation of the operator in addition to acquiring and incorporating the examination information from the already generated data other than the acquired DICOM format medical examination image. An analysis result report creation device characterized by incorporating the inspection information. In the analysis result report creating apparatus of claim 1 or 2,
A report image generation means for generating a report image for an analysis result report based on the medical examination image,
A report image embedding means that incorporates 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 the rules associated in advance.
An analysis result report creation device characterized by further comprising. It is a program for realizing a device for creating an analysis result report based on a medical examination image in DICOM data format by a computer.
Medical examination image acquisition means for acquiring medical examination images in DICOM data format,
Among the test information items in the analysis result report format, the patient name, patient ID, patient age, patient gender, test date or test time, the corresponding test information from the DICOM header of the acquired DICOM format medical test image. The first inspection information embedding means to acquire and incorporate
For the test information item in which the test information is not incorporated by the first test information incorporating means, the second test information is acquired and incorporated from the already generated data other than the acquired DICOM format medical test image. In the analysis result report creation program to function as a means for incorporating inspection information
An analysis result report creation program characterized in that the already generated data other than the acquired DICOM format medical examination image includes medical record data. In the analysis result report preparation program of claim 4,
The second examination information incorporating means is input based on the operation of the operator in addition to acquiring and incorporating the examination information from the already generated data other than the acquired DICOM format medical examination image. An analysis result report creation program characterized by incorporating the inspection information. In the analysis result report preparation program according to claim 4 or 5, the computer is further added.
A report image generation 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 embedding 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 the rules associated in advance. Report writing program. A server device that creates analysis result reports based on medical examination images in DICOM data format.
A medical examination image acquisition means for acquiring a medical examination image in DICOM data format from a terminal device,
Among the test information items in the analysis result report format, the patient name, patient ID, patient age, patient gender, test date or test time, the corresponding test information from the DICOM header of the acquired DICOM format medical test image. The first inspection information embedding means to acquire and incorporate
With respect to the inspection information item in which the inspection information is not incorporated by the incorporating means, the second inspection information incorporating means that acquires and incorporates the inspection information from the already generated data other than the acquired DICOM format medical inspection image. ,
Output means to output the generated analysis result report and
In the analysis result report creation server device equipped with
An analysis result report creation server device, characterized in that the already generated data other than the acquired DICOM format medical examination image includes medical record data. In the analysis result report creation server device of claim 7,
The second examination information incorporating means is input based on the operation of the operator in addition to acquiring and incorporating the examination information from the already generated data other than the acquired DICOM format medical examination image. An analysis result report creation server device that incorporates inspection information. In the server device of claim 7 or 8.
A report image generation means for generating a report image for an analysis result report based on the medical examination image,
A report image embedding means for incorporating the generated report image into an image area in the format of the analysis result report based on the operation of the operator of the terminal device or according to the rules associated in advance.
An analysis result report creation server device characterized by further providing. In any of the devices or programs of claims 1-9
The first inspection information incorporating means is an apparatus or program characterized in that the corresponding inspection information is acquired from the DICOM header in accordance with the DICOM standard. In any of the devices or programs of claims 1-10
The first inspection information incorporating means is a device or program characterized in that the corresponding inspection information is acquired from a DICOM header according to a definition defined as a private tag. In any of the devices or programs of claims 1-11
A device or program characterized in that the medical examination image is a medical image of the heart, brain, bone, liver, lung or thyroid gland. It is a method of creating an analysis result report by computer.
The computer acquires the medical examination image with the header information and
Among the test information items in the format of the analysis result report, the computer inputs the corresponding test information from the header of the medical test image acquired above to the patient name, patient ID, patient age, patient gender, test date or test time. Get and incorporate,
In the analysis result report creation method in which the computer acquires and incorporates the examination information from the data other than the acquired medical examination image for the examination information item in which the examination information is not incorporated by the incorporation.
A method for creating an analysis result report, characterized in that the acquired data other than the DICOM format medical examination image includes the recorded medical record data. In the analysis result report preparation method of claim 13,
An analysis result report characterized by incorporating examination information input based on an operator's operation in place of or in addition to acquiring examination information from data other than the acquired medical examination image. Document creation server device.