JP5209340B2 - Report creation system and report creation device - Google Patents

Description

The present invention relates to a report creation system and a report creation apparatus for linking a medical image to an inputted phrase.

  Since medical practice is subdivided into specialized fields, it is widely performed to request a specialist to interpret a medical image taken by an image diagnostic apparatus such as an X-ray CT apparatus or an MRI apparatus. The interpretation doctor who is a specialist displays the requested medical image to be interpreted on the monitor and interprets it, and compiles the interpretation results into an interpretation report.

  Interpretation reports have also been digitized due to recent digitization, and report creation systems for creating interpretation reports as electronic data are also provided. The image interpretation doctor inputs character data using a keyboard provided in the report creation system, and creates an image interpretation report.

  In an interpretation report, it is common to link an interpretation target that supports an interpretation result with a past medical image. The report creation system attaches link setting information indicating the interpretation target and past medical images to a specific phrase input in the interpretation report by inputting the following five steps by the interpretation doctor.

  (1) Using a keyboard, input text including a phrase to be linked to an interpretation report. (2) Using a mouse, select a range to be linked. (3) Using the mouse, move the cursor over the medical image to be linked. (4) Using the mouse, drag the medical image to be linked. (5) Using the mouse, move the medical image to be linked onto the selection range while dragging and drop it.

  As described above, the linking operation using the report creation system is time-consuming and the interpretation doctor tends to forget this linking operation. An interpretation report that is not linked to a medical image that supports the interpretation result is significantly lost in quality.

JP 2005-301453 A

The present invention has been made in view of the above circumstances, it is an object of providing a reporting system and reporting device to prevent that by forgotten the Installing links the medical image to the image interpretation report There is to do.

The report creation system according to the first aspect of the present invention that solves the above-described problem has an image storage device that stores medical images, or is connected to the image storage device and displays a report creation screen on a display means for interpretation. A report creation system for creating a report, comprising: storage means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase; and at least on the report creation screen in response to an input operation Input means for inputting a sentence including one phrase, and each phrase included in the input sentence and a linked phrase included in the interpretation report stored in the storage means before saving the interpretation report. Judge the relevance of each sentence in the sentence that contains it, Analyzing means for calculating a degree of similarity, before storage of the interpretation report, if the degree of similarity or the predetermined threshold value is calculated, are stored in the storage unit as the object of calculation of the similarity A message suggesting the necessity to link the medical image linked to the linked phrase included in the interpretation report to the phrase included in the input sentence for which the similarity is calculated And a notification control means for displaying on the display means.

  A link setting means for linking the medical image linked to one of the sets for which the similarity equal to or greater than a predetermined threshold is received in response to an input operation for linking to the other phrase is further provided. (It may be equivalent to the invention of claim 2).

  The analysis unit may receive the operation of saving the interpretation report displayed on the creation screen, determine the relevance, and calculate the similarity (corresponding to the invention according to claim 3). ).

In addition, a report creation system according to the invention described in claim 4 for solving the above-mentioned problem has an image storage device for storing medical images, or is connected to the image storage device, and displays a report creation screen on the display means. A report creation system for creating an interpretation report, storing means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase, and receiving the input operation, the report creation screen Input means for inputting a sentence including at least one phrase in FIG. 1, and each phrase included in the inputted sentence and a link included in the interpretation report stored in the storage means before saving the interpretation report. Judge the relevance of each sentence in the sentence including the phrase, Analyzing means for calculating a similarity Nsu, before storage of the interpretation report, if the degree of similarity or the predetermined threshold value is calculated, in the storage unit as the object of calculation of the similarity Linking setting means for linking a medical image linked to a linked phrase included in a stored interpretation report to a phrase included in the input sentence that is a target of calculation of the similarity And comprising.

In addition, a report creation system according to the invention described in claim 5 for solving the above-mentioned problem has an image storage device for storing medical images or is connected to the image storage device and displays a report creation screen on the display means. A report creation system for creating an interpretation report, storing means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase, and receiving the input operation, the report creation screen Input means for inputting a sentence including at least one phrase in FIG. 1, and each phrase included in the inputted sentence and a link included in the interpretation report stored in the storage means before saving the interpretation report. Judge the relevance of each sentence in the sentence including the phrase, Analyzing means for calculating a similarity Nsu, before storage of the image interpretation report, you must make with link a medical image to the phrase which the similarity or predetermined threshold is included in the sentence which is calculated the input And a notification control means for displaying a message suggesting sex on the display means.

In addition, a report creation system according to the invention described in claim 6 for solving the above-described problem has an image storage device for storing medical images or is connected to the image storage device, and displays a report creation screen on the display means. A report creation system for creating an interpretation report, storing means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase, and receiving the input operation, the report creation screen Input means for inputting a sentence including at least one phrase in FIG. 1, and each phrase included in the inputted sentence and a link included in the interpretation report stored in the storage means before saving the interpretation report. Judge the relevance of each sentence in the sentence including the phrase, Analyzing means for calculating a similarity Nsu, before storage of the image interpretation report, to give link a medical image to the phrase which the similarity or predetermined threshold is included in the sentence which is calculated the input link And an attachment setting means.
A report creation apparatus according to claim 7 for solving the above-mentioned problem is a report creation apparatus for creating a radiogram interpretation report by displaying a report creation screen on a display means, wherein the report creation apparatus is used for at least one phrase. Storage means for storing an interpretation report including a sentence to which an image is linked; input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen; and before saving the interpretation report , Determining the relationship between each phrase included in the input sentence and each phrase of the sentence including the linked phrase included in the interpretation report stored in the storage means, and from the determination result, analyzing means for calculating a degree of similarity, before storage of the image interpretation report, threshold than a predetermined When the similarity is calculated, the medical image linked to the linked phrase included in the interpretation report stored in the storage means that is the target of the similarity calculation And a notification control unit that causes the display unit to display a message that suggests the necessity of linking to a phrase included in the input sentence that is a target of the degree calculation.
The report creation apparatus according to claim 8 for solving the above-mentioned problem is a report creation apparatus for creating a radiogram interpretation report by displaying a report creation screen on a display means, wherein the report creation apparatus is medical for at least one phrase. Storage means for storing an interpretation report including a sentence to which an image is linked; input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen; and before saving the interpretation report , Determining the relationship between each phrase included in the input sentence and each phrase of the sentence including the linked phrase included in the interpretation report stored in the storage means, and from the determination result, analyzing means for calculating a degree of similarity, before storage of the image interpretation report, threshold than a predetermined When the similarity is calculated, the medical image linked to the linked phrase included in the interpretation report stored in the storage means that is the target of the similarity calculation Link setting means for linking to a phrase included in the input sentence that is a target of degree calculation.
A report creating apparatus according to claim 9 for solving the above-mentioned problem is a report creating apparatus for creating a radiogram interpretation report by displaying a report creation screen on a display means, and is used for at least one phrase. Storage means for storing an interpretation report including a sentence to which an image is linked; input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen; and before saving the interpretation report , Determining the relationship between each phrase included in the input sentence and each phrase of the sentence including the linked phrase included in the interpretation report stored in the storage means, and from the determination result, analyzing means for calculating a degree of similarity, before storage of the image interpretation report, threshold than a predetermined And a notification control means for displaying on the display means a message that suggests the necessity of linking a medical image to a phrase included in the inputted sentence for which the similarity of the sentence is calculated. .
A report creation apparatus according to claim 10 for solving the above-mentioned problem is a report creation apparatus for creating a radiogram interpretation report by displaying a report creation screen on a display means, wherein at least one phrase is used for medical purposes. Storage means for storing an interpretation report including a sentence to which an image is linked; input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen; and before saving the interpretation report , Determining the relationship between each phrase included in the input sentence and each phrase of the sentence including the linked phrase included in the interpretation report stored in the storage means, and from the determination result, analyzing means for calculating a degree of similarity, before storage of the interpretation report, a predetermined threshold Further comprising a linking setting section for attaching linking medical images phrase included in the sentence in which the similarity of the above is the calculated input and, characterized.

According to the present invention, without having to forgotten the linking medical imaging which is probative of the interpretation result in the interpretation report can be created with high quality interpretation report.

A preferred embodiment of a report creation system and a report creation apparatus according to the present invention will be specifically described with reference to the drawings.

  FIG. 1 is a diagram illustrating a network configuration of the report creation system 1.

  The report creation system 1 arranges character data input by an interpretation doctor into an interpretation report. Used by an interpreting doctor to interpret a medical image and create an interpretation report. Further, the report creation system 1 links a medical image to a phrase composed of input character data. The medical image is image data obtained by imaging the inside of a subject with a medical image diagnostic apparatus such as an X-ray CT apparatus or an MRI apparatus. The interpretation report is document data in which character data is arranged. The character data includes not only characters but also data such as symbols and numbers. Linking is a process of linking a medical image and a character data group such as a phrase.

  The report creation system 1 is configured by connecting a report creation device 3, a report storage device 2, and an image storage device 4 via a network N.

  The report creation device 3 displays a medical image to be interpreted, and creates an interpretation report that summarizes the interpretation results corresponding to the input operation of the interpretation doctor. The report storage device 2 stores interpretation reports created in the past. The image storage device 4 stores medical images. Hereinafter, when distinguishing an interpretation report being created, it is referred to as a creation report, and when distinguishing an interpretation report created in the past, it is referred to as a past report.

  In the report creation system 1, a medical image to be interpreted is displayed on the report creation device 3. A medical image to be interpreted is transmitted from the image storage device 4 to the report creation device 3. The interpretation doctor interprets the displayed medical image and inputs text representing the interpretation result to the report creation apparatus 3. The report creation device 3 arranges the input character data into a creation report and displays the arrangement result. When the save operation of the created report is input, the report creating device 3 transmits the created report to the report storage device 2. The report storage device 2 stores the received creation report.

  Here, in the interpretation report, a past medical image and a medical image to be interpreted are generally linked as a comparison reference. There is a high possibility that a past medical image that can be used as a comparison control is linked to a past report linked sentence having the same meaning content. A sentence with a link refers to a sentence including a phrase to which a medical image is linked.

  The report creation system 1 analyzes the semantic contents of sentences arranged in the created report and linked sentences arranged in the past report, and determines the similarity between them. If a similarity equal to or greater than a predetermined value is recognized, it is checked whether or not the sentence having the similarity with the linked sentence is linked. If not linked, prompts for linking and links a medical image linked to at least one phrase of the linked sentence arranged in the past report to at least one phrase included in the sentence of the created report To do.

  FIG. 2 is an external view showing the external appearance of the report creation device 3.

  The report creation device 3 includes a monitor 31 and a monitor 32 such as a CRT display and a liquid crystal display, input devices such as a keyboard 33 and a mouse 34, and a workstation device 35.

  The report storage device 2 and the image storage device 4 including the workstation device 35 are each configured by a computer. Each is equipped with a calculation control unit (CPU: Central Processing Unit), a main storage unit (RAM: Random Access Memory), an external storage unit (HDD: Hard Disk Drive), and a communication controller. Input / output is possible.

  The arithmetic control unit decodes and executes the program to perform data arithmetic and device control. The main storage unit is a work area of the calculation control unit, and a program is developed to temporarily store calculation results and read data. The external storage unit stores an OS (Operating System) and respective programs for creating an interpretation report. The communication controller is directly connected to the network N, and controls data communication performed via the network N by data communication control such as WWW (World Wide Web) or TCP / IP protocol. The network N is an electronic communication line capable of transmitting electronic data. For example, a telephone line network, ISDN, FDDI, a dedicated line, a mobile communication network, a communication satellite line, CATV, LAN, or a combination of these is adopted. The

  The monitor 31 displays the created report on the report creation screen. When character data is input, the result of arranging the input character data is displayed on the report creation screen. A medical image to be interpreted is displayed on the monitor 32.

  The character data input operation is input using the keyboard 33. On the keyboard 33, keys associated with various character data are arranged. When the interpretation doctor presses each key, character data corresponding to the pressed key is input. On the report creation screen, a save button for executing a created report saving process is displayed. The created report is saved by pressing the cursor on the save button with the mouse 34.

  The workstation device 35 controls the monitor 31 and the monitor 32 to display a medical image and a report creation screen. Further, the workstation device 35 executes character data input processing, created report storage processing, and medical image linking processing in response to operations using the keyboard 33 and the mouse 34.

  FIG. 3 is a configuration diagram showing the configuration of the workstation device 35.

  The workstation device 35 includes a text creation unit 351, a link setting unit 352, a past report search unit 353, a past report storage unit 354, a structured processing unit 355, an analysis unit 356, and a notification control unit 357. Prepare. These configurations may be configured by a dedicated circuit or may be realized by executing a program by a computer.

  The text creation unit 351 arranges character data input by operating the keyboard 33 in a creation report. The link setting unit 352 sets a medical image link to the phrase included in the creation report.

  FIG. 4 is a schematic diagram showing a data structure of an interpretation report created by the text creation unit 351 and the link setting unit 352.

  In the interpretation report, report information 51 and text are recorded. The text is arranged according to a rule such as an HTML method or an XML method. The report information 51 is information for specifying a report, and includes a patient ID, examination type information, and examination site information. The examination type information indicates the type of imaging method for a medical image to be interpreted, such as X-ray CT or MRI. The examination site information indicates the site of the examined subject such as the head or abdomen. The text is surrounded by a type tag 52 that defines the type of the text. The interpretation report is provided with a type tag 52 that means a diagnosis name and a type tag 52 that means a finding. The text creation unit 351 arranges character data in an area surrounded by the type tag 52.

  In addition, link setting information 53 is recorded in the interpretation report. The link setting information 53 indicates that a link is established, and is represented by a link tag. In this link tag, the storage destination address 54 of the medical image that is linked is recorded. The link setting information 53 is recorded by enclosing a phrase with a link tag. This is a range in which phrases surrounded by link tags are linked.

  The link setting unit 352 sets a link in the sentence of the created report. The sentence for which the link is set is a sentence similar to the sentence with a link in the past report among the sentences in the created report. Specifically, at least one phrase of the sentence is surrounded by a link tag, and the storage destination address 54 of the medical image linked to the phrase included in the linked sentence is recorded in the link tag.

  The past report search unit 353 searches for a past report from the report storage device 2. The search target is a past report including the same report information 51 as the created report. The past report search unit 353 reads the report information 51 from the created report, attaches the report information 51 to the search and transmission request, and transmits the report information 51 to the report storage device 2.

  The past report storage unit 354 temporarily stores the past report received from the report storage device 2.

  The structured processing unit 355 structures each sentence included in the created report and each linked sentence of the past report. This is a pre-process for analyzing the similarity between each sentence of the created report and each linked sentence of the past report. Structuring is a process of clearly indicating the semantic content of a sentence by structure. Specifically, the structuring processing unit 355 separates sentences in units of phrases that constitute one element of meaning content, and reconfigures again so that the element type of each phrase can be identified.

  FIG. 5 is a diagram showing a specific example of sentence structuring.

  For example, it is assumed that a sentence enclosed by a type tag 52 indicating a finding column of an interpretation report includes a sentence “A localized blood flow drop is recognized in the left temporal lobe”. When structuring this sentence, the structuring processing unit 355 searches for the reading point of the previous sentence and the reading point of this sentence, and extracts the sentence surrounded by the reading point. In extracting a sentence with a link, a link tag is searched from a past report. When the link setting information 53 is found, a character data group including a phrase surrounded by link tags and surrounded by punctuation marks is extracted as a sentence with a link.

  When the sentence of the created report or the sentence with the link of the past report is extracted, the structured processing unit 355 includes the phrases of “left temporal lobe”, “localization”, “blood flow reduction”, and “acknowledge”. Disassembled into

  Then, the phrase “findings” representing the type of text indicated by the type tag 52 is attached to the extracted sentence itself. Then, description type identification information 61 for identifying the type of sentence is attached to this “finding”. Furthermore, the structuring processing unit 355 adds site element identification information 62 indicating a site word to the phrase “left temporal lobe”. For the phrase “localized”, the modification element identification information 65 for identifying the modification word is attached. Finding element identification information 63 for identifying a finding word is attached to the phrase “decreased blood flow”. For the phrase “acknowledge”, the phrase is converted into a phrase “conclusive”, and definiteness element identification information 64 for identifying the certainty is added to the phrase “conclusive”.

  When each element identification information is attached to each phrase, a pair of the phrase and the element identification information of the phrase is put together, and a sentence with a link or a sentence number for specifying the sentence is attached. The sentence number is a rank in an interpretation report in which a sentence or a sentence with a link appears.

  In addition, for example, when a plurality of part elements are included in one sentence, such as “A decrease in blood flow is observed in the left temporal lobe and the left occipital lobe.” Treat and structure each one.

  Decomposition into phrase units and addition of element identification information are performed with reference to phrase dictionary data. FIG. 6 is a data configuration diagram showing the phrase dictionary data 355a.

  The structured processing unit 355 stores phrase dictionary data 355a in advance. In the phrase dictionary data 355a, a large number of phrases belonging to the site element, phrases belonging to the finding element, phrases belonging to the definiteness element, and phrases belonging to the modifier element are recorded. Each phrase belonging to the certainty factor is associated with a conversion phrase 66 such as “determined” or “weakly determined” in accordance with the certainty of the interpretation doctor's judgment that means the phrase.

  The structured processing unit 355 sequentially reads each phrase recorded in the phrase dictionary data 355a, applies the read phrase while shifting it one character at a time from the beginning of the sentence or the sentence with the link, and applies it to the applied phrase. Check the location. If the data of the applied part and the applied phrase match, the sentence is decomposed once by extracting the data of the matched part. Then, the extracted data is treated as a phrase, and element identification information of the element type to which the phrase read from the phrase dictionary data 355a belongs is attached.

  When a phrase belonging to a certainty factor is extracted, the extracted phrase is converted into a conversion phrase 66 associated with the phrase read from the phrase dictionary data 355a, and then the certainty factor to which the read phrase belongs. Identification information 64 is attached.

  The analysis unit 356 analyzes each sentence of the created report and a sentence with a link of the past report, and calculates a similarity 81 (see FIG. 7) between the two sentences. This analysis uses a sentence structured by the structuring processing unit 355 and a sentence with a link. Then, the analysis unit 356 identifies a combination of a sentence and a sentence with a link for which a similarity 81 equal to or greater than a threshold value prepared in advance is calculated.

  In the analysis, phrases of the same element type are compared to determine the relevance of the concept, and the similarity 81 of both sentences is calculated from the determination result for each phrase. In determining the relevance of each phrase, a relevance level 83 (see FIG. 7) is calculated. In the calculation of the sentence similarity 81, the relevance 83 of each phrase is weighted for each element and then totaled. This is because sentences composed of highly related phrases have a tendency to express similar semantic contents.

  FIG. 7 is a diagram illustrating a specific example of calculation of the relevance level 83 and the similarity level 81.

  For example, as shown in FIG. 7, the sentence “Localized shadow is recognized in the lung” described in the observation column of the created report is generated by the structured processing unit 355 by the description type identification information 61. The accompanying “finding” phrase, the “lung” phrase attached with the part element identification information 62, the “shadow” phrase attached with the finding element identification information 63, and the “affirmation” attached with the definiteness element identification information 64 ”And the phrase“ localized ”accompanied by the modifier identification information 65 are reconfigured.

  In addition, the structured type processing unit 355 attaches description type identification information 61 to a sentence with a link that says “a ground glass shade is observed in the apex of the lung” described in the observation column of the past report. The phrase “finding”, the phrase “pulmonary apex” accompanied by the part element identification information 62, the “ground glass-like shade” phrase accompanied by the finding element identification information 63, and the certainty element identification information 64 Is reconstructed into a phrase converted to the word “conclusive”.

  The analysis unit 356 reads structured sentence data and linked sentence data, and compares the phrases with the description type identification information 61 and the phrases with the same element identification information. Elements that are not in one are not comparable. Specifically, phrases with description type identification information 61, phrases with part element identification information 62, phrases with finding element identification information 63, and deterministic element identification information 64 The phrases attached with are compared with each other. Further, if there is no phrase accompanied by the modification element identification information 65 on one side, the modification elements are not compared.

  According to this example, the phrases to which the description type identification information 61 is attached are both “findings”, and the data of the phrases are completely matched. Alternatively, it is stored in association with the phrase “findings”. The phrases to which the part element identification information 62 is attached are “lung” and “pulmonary apex” and do not completely match. Therefore, the analysis unit 356 refers to the ontology hierarchy definition data 356a described later, and the relevance level 83 Is calculated. The ontology hierarchy definition data 356a is stored in advance in the analysis unit 356. In addition, the phrase with the finding element identification information 63 is “shaded” and “ground glass-like shade” and does not completely match, so the analysis unit 356 refers to the ontology hierarchy definition data stored in advance. Thus, the degree of association 83 is calculated. The phrases to which the certainty factor identification information 64 is attached are both “determined”, and the data of this phrase completely match. Therefore, one point of the degree of association 83 indicating the same is regarded as the certainty factor identification information 64 or “determined”. "And memorize it in association with the phrase.

  FIG. 8 is a schematic diagram showing ontology hierarchy definition data 356a. The ontology hierarchy definition data 356a is obtained by hierarchizing various phrases in a branch structure from a lower concept to a higher concept on the basis of the width of the concept.

  For example, the lung, the lung field, the pulmonary apex and the middle lobe are connected in a hierarchical manner. Lung and lung field are synonyms, and are directly connected by branches 71 indicating synonyms in ontology hierarchy definition data 356a. The lung or lung field and the pulmonary apex are in a relationship between a superordinate concept and a subordinate concept that are distinguished by adjacent hierarchies, and are directly linked by a branch 72 indicating a superordinate and subordinate in the ontology hierarchy definition data 356a. Further, the lung or lung field and the Nakaba ward are in a relationship between a superordinate concept and a subordinate concept that are distinguished by adjacent hierarchies, and are directly linked by the branch 72 indicating the superordinate and subordinate levels in the ontology hierarchy definition data 356a.

  The analysis unit 356 counts how many upper and lower branches 72 are separated from each other in order to calculate the degree of association 83 between the two phrases. In the case of the lung and the lung field, the count value is 0 because they are connected only by the branch 71 indicating the synonym and the branch 72 indicating the upper and lower order does not exist between the two phrases. In the case of the lung and the pulmonary apex, the count value is 1 because they are separated by one branch 72 indicating the upper and lower order. In the case of the pulmonary apex and the middle lobe, the count value is 2 because they are separated by two branches 72 indicating the upper and lower parts via the lung.

  When the two phrases do not completely match, the analysis unit 356 determines the degree of association 83 between the two phrases according to the degree of separation of the concepts of the two phrases. Specifically, the analysis unit 356 halves the number of count values, with the initial value of the relevance level 83 as one point. If the count value is 0, since it is a synonym, the relevance level 83 is one point similar to the same. If the count value is 1, the relevance level 83 is 0.5 points, and if the count value is 2, the relevance level 83 is 0.25 points.

  Accordingly, if the phrases to which the part element identification information 62 is attached are “lung” and “pulmonary apex”, referring to the ontology hierarchy definition data 356a, the degree of separation between the concepts of both phrases becomes the count value 1, and the analysis unit 356 stores 0.5 points in association with the part element identification information 62 or “lung” and “pulmonary apex”. In addition, if the phrase with the finding element identification information 63 is “shadow” and “ground glass-like”, referring to the ontology hierarchy definition data 356a, the degree of separation between the concepts of both phrases is a count value of 1, and the analysis is performed. The unit 356 stores 0.5 points in association with the finding element identification information 63 or “shade” and “ground glass-like shadow”. The degree of relevance 83 is 0 point for the modified elements that are not comparative controls.

  When the relevance level 83 of each phrase is calculated, the sentence similarity level 81 is calculated by weighting each relevance level 83 and then summing the weights. The analysis unit 356 stores a weight value 82 in advance for each element type of each phrase.

  For example, “2” that is the weighting value 82 for the site element and the finding element and “1” that is the weighting value 82 for the description type element and the deterministic element are stored. In the example shown in FIG. 7, one point which is the degree of association 83 associated with the description type identification information 61 and the deterministic element identification information 64 is left as it is, and is associated with the part element identification information 62 and the finding element identification information 63. The 0.5 point that is the relevance level 83 is multiplied by “2” that is the weight value 82. Then, by summing up the respective relevance levels 83 after weighting, the similarity 81 between the sentence of the prepared report serving as a comparison and the linked sentence of the past report is 4 points.

  The analysis unit 356 stores a threshold value such as “3 points” in advance. When the similarity 81 is calculated, the analysis unit 356 compares the threshold with the similarity 81 to identify a sentence with the similarity 81 equal to or greater than the threshold and a linked sentence.

  When a sentence whose similarity 81 is equal to or greater than the threshold is present in the created report, the notification control unit 357 causes the monitor 31 to display a message 91 that notifies the necessity of linking to the sentence.

  FIG. 9 is a schematic diagram showing a message 91 displayed on the monitor 31.

  For example, the notification control unit 357 displays a message 91 “Please link the past medical image and the current medical image to“ left temporal lobe ””. Further, the past medical image thumbnail past image 92 and the automatic link button 93 are displayed next to the message 91 represented by the character string.

  The notification control unit 357 stores a character string to be displayed in advance, and creates a message 91 by applying a phrase representing a sentence part having a similarity 81 equal to or higher than a threshold value to the character string. Further, the notification control unit 357 reads the medical image storage destination address 54 from the link setting information 53 attached to the message 91 with the link whose similarity 81 is equal to or greater than the threshold, and the medical image existing at the read storage destination address 54. Is acquired from the image storage device 4.

  When the surgeon performs a linking operation in response to the message 91 displayed on the monitor 31, the link setting unit 352 performs a linking process. This corresponds to a drag operation to the selection range of the displayed past medical image or a press of the automatic link button 93. When the automatic linking button 93 is pressed, the link setting unit 352 reads the storage destination address 54 from the link setting information 53 attached to the linked sentence whose similarity 81 is equal to or greater than the threshold, and is similar to this linked sentence. Link setting information 53 in which the read storage address 54 is recorded is attached to the phrase indicating the part element of the sentence.

  FIG. 10 is a flowchart showing the operation of the linking process of such a report creation system 1.

  First, the text creation unit 351 displays a medical image to be interpreted on the monitor 32 (S01), and displays a report creation screen on the monitor 31 (S02). When a key arranged on the keyboard 33 is pressed (S03, Yes), the text creation unit 351 arranges character data corresponding to the pressed key in a creation report and causes the monitor 32 to display the arrangement result ( S04).

  When the operation of saving the created report is performed by operating the mouse 34 and placing the cursor on the save button and clicking (S05, Yes), the report creation system 1 starts the link check and the link process To do.

  First, when a save operation is performed, the past report search unit 353 reads the report information 51 from the created report (S06), and transmits a request report search and transmission request command together with the report information 51 to the report storage device 2 ( S07).

  In the report storage device 2, a past report including the same information as the patient ID, examination type information, and examination site information included in the received report information 51 is searched, and the corresponding past report is sent to the report creation device 3. Send. When there are a plurality of corresponding past reports, the latest past report is transmitted based on the inspection date recorded in the past report.

  When a past report is received from the report storage device 2, the past report storage unit 354 stores the received past report (S08).

  The structured processing unit 355 extracts all linked sentences from the received past report (S09). Further, the structuring processing unit 355 extracts all sentences included in the created report (S10).

  First, the structuring processing unit 355 searches for the link setting information 53 recorded in the past report. Further, the preceding and subsequent reading data existing immediately before the phrase linked by the link setting information 53 are searched. When the preceding and following punctuation data are found, the character data group surrounded by the punctuation data is taken out as a sentence with a link.

  The search from the link setting information 53 to the retrieval of the sentence with the link is performed from the beginning to the end of the sentence of the past report, and the sentence with the link is retrieved every time the link setting information 53 is found. At the time of taking out, the type of the type tag 52 surrounding the sentence with link to be taken out is read out. A phrase indicating the type of the read type tag 52 and description type identification information 61 are attached to the retrieved sentence with link, and a sentence number that is the appearance order in the past report is associated with the sentence.

  In addition, the structuring processing unit 355 searches the created report for the two reading points data adjacent on the sentence structure in order from the sentence head. When two points of reading data are found, a character data group surrounded by the points of reading is extracted as a sentence.

  The search for the reading data is performed from the beginning to the end of the created report, and the sentence is extracted every time two reading data are specified. At the time of extraction, the type of the type tag 52 surrounding the sentence to be extracted is read out. Then, a phrase indicating the type of the read type tag 52 and description type identification information 61 are attached to the extracted sentence, and a sentence number which is the appearance order in the creation report is associated with the sentence.

  When all the linked sentences and sentences are extracted (S09, S10), the structuring processing unit 355 structures each linked sentence and each sentence (S11).

  First, the structuring processing unit 355 reads the first phrase recorded in the phrase dictionary data 355a, applies the read phrase to a sentence with a link or the sentence head, and performs collation. If the applied portion and the phrase data do not match, the matching portion is shifted to the end of the sentence one character at a time, and the read phrase and the data at that portion are collated. When the shift to the beginning of the sentence is completed and there is no data match, the next phrase is sequentially read from the phrase dictionary data 355a, and the fitting and collation are repeated.

  If the read phrase matches the data of the applied part, the data of that part is taken out as one phrase, and element identification information to which the phrase read from the phrase dictionary data 355a belongs is added to the extracted phrase. When the phrase read from the phrase dictionary data 355a belongs to the deterministic element, the extracted phrase is converted into a conversion phrase associated with the read phrase, and then the deterministic element identification information 64 is attached.

  The process of extracting the phrase and identifying the type of element on the sentence sentence ends when the collation location reaches the end of the sentence, or when all the phrases in the phrase dictionary data 355a are used for collation. This phrase extraction and element type identification processing is performed for all the extracted sentences and sentences with links.

  When all the extracted linked sentences and sentences are structured (S11), the analysis unit 356 calculates the relevance 83 between the linked sentences of each combination and the phrase of the same element included in the sentence (S12). ).

  First, the analysis unit 356 generates comparison information by combining each sentence number of a sentence with a link and a sentence as a comparison reference, using the sentence with a link and the sentence as one combination as a comparison reference.

  And the phrases to which the description type identification information is given, the phrases to which the part element identification information 62 is given, the phrases to which the finding element identification information 63 is given, and the deterministic element identification information 64 are given. If the phrase is completely matched, the degree of relevance 83 with respect to the compared element is set to a value indicating the same, and is associated with the generated comparison information.

  If the compared phrases do not completely match, the analysis unit 356 applies the compared phrases to the ontology hierarchy definition data 356a. And it counts how many branches 72 which show the applied phrase are separated by the upper and lower order. When the degree of separation of the concept of the phrase being compared is counted, the initial value, which is the same value as the relevance level 83 indicating the same, is halved by the number of times indicated by the count value, and the final value is the two phrases that are the comparison targets. Relevance degree 83 of the element to which the

  The analysis unit 356 generates the comparison information and calculates the relevance level 83 for all combinations of sentences with sentences and sentences.

  When the relevance level 83 is calculated, the analysis unit 356 calculates a similarity level 81 between the sentence with link and the sentence (S13).

  The analysis unit 356 stores in advance a weighting value 82 for each of the description type, part element, finding element, and deterministic element. The analysis unit 356 multiplies the description type relevance level 83 associated with one comparison reference information by the description type weighting value 82, multiplies the relevance level 83 of the part element by the weighting value 82 of the part element, and The relevance level 83 is multiplied by the weight value 82 of the finding element, and the relevance level 83 of the deterministic element is multiplied by the weight value 82 of the deterministic element. Then, the obtained values are totaled to obtain the similarity 81 between the sentence with link and the sentence represented by the comparison information.

  When the similarity 81 is calculated for each combination of a sentence with a link and a sentence, the analysis unit 356 compares the similarity 81 with a threshold stored in advance (S14). As a result of the comparison, if there is a similarity 81 that is equal to or greater than the threshold (S14, Yes), the notification control unit 357 displays a message 91 indicating the necessity of linking, a past thumbnail image 92, and an automatic linking button 93. It is displayed on the monitor 31 (S15).

  The analysis unit 356 notifies the notification control unit 357 of the comparison control information associated with the similarity 81 that is equal to or greater than the threshold. The notification control unit 357 reads the sentence number included in the notified comparison control information. Then, the phrase with the part element identification information 62 is extracted from the sentence of the creation report indicated by the sentence number and applied to the format of the message 91 stored in advance.

  Further, the notification control unit 357 reads the link setting information 53 from the linked sentence of the past report indicated by the sentence number, and stores the medical image stored in the storage destination address included in the link setting information 53 as an image storage device. 4 is received. The notification control unit 357 converts the received medical image into a thumbnail and displays it on the monitor 31 together with the message 91 and the automatic link button 93.

  When the automatic link button 93 is pressed (S16, Yes), the link setting unit 352 links the medical image linked to the phrase of the sentence with the link to the phrase of the sentence (S17).

  The link setting unit 352 reads the sentence number of the sentence with the link included in the comparison information associated with the similarity 81 that is equal to or greater than the threshold. When the sentence number of the sentence with the link is read, the link setting information 53 is extracted from the sentence with the link represented by the sentence number. Further, the sentence number of the created report included in the comparison information is read, and the sentence to be linked is specified from the created report. Then, the link setting unit 352 identifies the phrase to which the part element identification information 62 is added from the sentence of the creation report represented by the sentence number, and records the extracted link setting information 53.

  Further, the link setting unit 352 links the link setting information 53 including the storage destination address of the medical image set as the key image and set in the key image to the sentence phrase (S18).

  When the key image displayed on the monitor 32 and the thumbnail past image 92 displayed together with the message 91 are dragged without pressing the automatic link button 93, the link setting unit 352 causes the dragging operation to be performed. Linked medical images may be made.

  The message 91 may be simply a character string that suggests linking medical images. In this case, the automatic linking button 93 is not displayed, and the linking process may be performed by general drag and drop.

  In addition, a medical image displayed on the monitor 32 as an interpretation target or a message 91 that suggests only linking a key image in an image group of the same series as the medical image may be displayed. In this case, the process of S17 of the link setting unit 352, that is, the link process of the medical image linked to the phrase included in the linked sentence can be excluded. If the automatic linking button 93 is pressed after the processing of S16, the link setting unit 352 may execute the processing of S18, that is, the linking processing of the medical image that is the interpretation target.

  As described above, in the report creation system 1 according to the present embodiment, the relevance between each phrase included in the sentence input to the creation report and each phrase of the linked sentence in the past report is determined, and both of the phrases are determined from the determination result. A sentence similarity 81 is calculated. When a degree of similarity 81 equal to or greater than a predetermined value is calculated, a message 91 is displayed on the monitor 31 that suggests the necessity of linking a medical image to the phrase of the sentence to be calculated. The message 91 simply indicates the necessity of linking a medical image, or indicates the necessity of linking to the other of the medical images linked to one of the sets for which the similarity 81 equal to or higher than a predetermined value is calculated. It suggests, or suggests the necessity of linking medical images that are subject to interpretation.

As a result, it is possible to check whether or not a medical image as evidence is linked to the interpretation report, and if the link is not linked, a message 91 to that effect is displayed, so the link of the medical image is forgotten. It is possible to create a high quality interpretation report. That is, according to the present embodiment, it is possible to prevent forgetting to link medical images by checking the necessity of linking medical images to interpretation reports.

  Further, in response to a linking operation such as pressing of the automatic linking button 93, a medical image displayed as an interpretation target or a medical image linked to one of a set for which a similarity 81 equal to or higher than a predetermined value is calculated. Link the image to the other sentence phrase. Thereby, troublesome linking work can be omitted, and the interpretation report creation work can be made efficient.

  In addition, the calculation of the relevance 83 and the similarity 81 by the analysis unit 356 is performed after receiving a save operation of the created report. As a result, there is no need to sequentially check for linking during the input of character data, and it is possible to concentrate on creating a document that reflects the interpretation result.

It is a figure which shows the network structure of a report production system. It is an external view which shows the external appearance of a report production apparatus. It is a block diagram which shows the structure of a workstation apparatus. It is a schematic diagram which shows the data structure of an interpretation report. It is a figure which shows one specific example of structuring of a sentence. It is a data block diagram which shows phrase dictionary data. It is a figure which shows one specific example of the analysis of similarity. It is a schematic diagram which shows ontology hierarchy definition data. It is a schematic diagram which shows the message displayed on a monitor. It is a flowchart which shows operation | movement of a report preparation system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Report creation system 2 Report storage apparatus 3 Report creation apparatus 31 Monitor 32 Monitor 33 Keyboard 34 Mouse 35 Workstation apparatus 351 Text creation part 352 Link setting part 353 Past report search part 354 Past report storage part 355 Structured process part 355a Phrase dictionary Data 356 Analysis unit 356a Ontology hierarchy definition data 357 Notification control unit 4 Image storage device 51 Report information 52 Type tag 53 Link setting information 54 Storage destination address 61 Description type identification information 62 Part element identification information 63 Observation element identification information 64 Deterministic element Identification information 65 Modification element identification information 66 Conversion phrase 71 Branch showing synonyms 72 Branch showing upper and lower 81 Similarity 82 Weighting value 83 Relevance 91 Message 92 Thumbnail past image 93 With automatic link Button N network

Claims (10)

A report creation system for creating a radiogram interpretation report by displaying a report creation screen on a display means having an image storage device for storing a medical image or being connected to the image storage device,
Storage means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
If the degree of similarity equal to or greater than a predetermined threshold is calculated before saving the image interpretation report, a link is included in the image interpretation report stored in the storage unit that is the target of calculation of the degree of similarity. Notification control for displaying on the display means a message that suggests the necessity of linking a medical image linked to a phrase to a phrase included in the input sentence that is a target of the similarity calculation Means,
Providing
Report creation system characterized by A link setting means for linking the medical image linked to one of the sets in which the similarity equal to or greater than a predetermined threshold is received in response to an input operation for linking to the other phrase; ,
The report creation system according to claim 1. The analysis means receives the operation of saving the interpretation report, determines the relevance, and calculates the similarity;
The report creation system according to claim 1. A report creation system for creating a radiogram interpretation report by displaying a report creation screen on a display means having an image storage device for storing a medical image or being connected to the image storage device,
Storage means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
If the degree of similarity equal to or greater than a predetermined threshold is calculated before saving the image interpretation report, a link is included in the image interpretation report stored in the storage unit that is the target of calculation of the degree of similarity. A link setting means for linking a medical image linked to the phrase to the phrase included in the input sentence that is the target of the similarity calculation;
Providing
Report creation system characterized by A report creation system for creating a radiogram interpretation report by displaying a report creation screen on a display means having an image storage device for storing a medical image or being connected to the image storage device,
Storage means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
Before saving the interpretation report, a message is displayed on the display means indicating the necessity of linking a medical image to a phrase included in the input sentence in which the similarity equal to or greater than a predetermined threshold is calculated. Notification control means for causing
Providing
Report creation system characterized by A report creation system for creating a radiogram interpretation report by displaying a report creation screen on a display means having an image storage device for storing a medical image or being connected to the image storage device,
Storage means for storing an interpretation report including a sentence in which the medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
Linking setting means for linking a medical image to a phrase included in the input sentence in which the similarity equal to or higher than a predetermined threshold is calculated before saving the interpretation report ;
Providing
Report creation system characterized by A report creation device for creating a radiogram interpretation report by displaying a report creation screen on a display means,
Storage means for storing an interpretation report including a sentence in which a medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
If the degree of similarity equal to or greater than a predetermined threshold is calculated before saving the image interpretation report, a link is included in the image interpretation report stored in the storage unit that is the target of calculation of the degree of similarity. Notification control for displaying on the display means a message that suggests the necessity of linking a medical image linked to a phrase to a phrase included in the input sentence that is a target of the similarity calculation Means,
Providing
A report creation device. A report creation device for creating a radiogram interpretation report by displaying a report creation screen on a display means,
Storage means for storing an interpretation report including a sentence in which a medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
If the degree of similarity equal to or greater than a predetermined threshold is calculated before saving the image interpretation report, a link is included in the image interpretation report stored in the storage unit that is the target of calculation of the degree of similarity. A link setting means for linking a medical image linked to the phrase to the phrase included in the input sentence that is the target of the similarity calculation;
Providing
A report creation device. A report creation device for creating a radiogram interpretation report by displaying a report creation screen on a display means,
Storage means for storing an interpretation report including a sentence in which a medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
Before saving the interpretation report, a message is displayed on the display means indicating the necessity of linking a medical image to a phrase included in the input sentence in which the similarity equal to or greater than a predetermined threshold is calculated. Notification control means for causing
Providing
A report creation device. A report creation device for creating a radiogram interpretation report by displaying a report creation screen on a display means,
Storage means for storing an interpretation report including a sentence in which a medical image is linked to at least one phrase;
An input means for receiving an input operation and inputting a sentence including at least one phrase on the report creation screen;
Before storing the interpretation report, determine the relevance between each phrase included in the input sentence and each phrase in the sentence including the linked phrase included in the interpretation report stored in the storage means; An analysis means for calculating the similarity between both sentences from the judgment result;
Linking setting means for linking a medical image to a phrase included in the input sentence in which the similarity equal to or higher than a predetermined threshold is calculated before saving the interpretation report ;
Providing
A report creation device.

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