WO2009007909A1 - Regroupement de mesures pour compte-rendu clinique - Google Patents

Regroupement de mesures pour compte-rendu clinique Download PDF

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Publication number
WO2009007909A1
WO2009007909A1 PCT/IB2008/052735 IB2008052735W WO2009007909A1 WO 2009007909 A1 WO2009007909 A1 WO 2009007909A1 IB 2008052735 W IB2008052735 W IB 2008052735W WO 2009007909 A1 WO2009007909 A1 WO 2009007909A1
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WO
WIPO (PCT)
Prior art keywords
measurements
module
reports
medical reports
extracted
Prior art date
Application number
PCT/IB2008/052735
Other languages
English (en)
Inventor
Johannes Buurman
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2009007909A1 publication Critical patent/WO2009007909A1/fr

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Classifications

    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H15/00—ICT specially adapted for medical reports, e.g. generation or transmission thereof

Definitions

  • the invention relates to the field of medical reporting and, more specifically, to combining results from multiple medical reports.
  • reports in a RIS are unstructured pieces of text, often dictated.
  • the trends are towards more structured reporting, e.g. by mapping a reporting standard (like the American College of Radiologists' BI-RADS for breast imaging) to DICOM.
  • Structured data is data wherein the findings are (possibly in addition to free text) stored in clearly identified fields and preferably expressed using well-defined terms, so that they lend themselves to automatic interpretation. For example, a construction like (in xml) " ⁇ malignant>true ⁇ /malignant>" unambiguously denotes a property, malignant, with a value true.
  • a reporting standard like BI-RADS defines both the structure of the data and the terms that can be used.
  • DICOM particularly part 16, Content Mapping Resource
  • a system for extracting measurements from a plurality of medical reports comprising: a read module for reading the plurality of medical reports; an extraction module for extracting measurements from the plurality of medical reports, based on a measurement unit; and a display module for displaying the extracted measurements.
  • the user may select the plurality of reports for analysis by specifying the name of a folder comprising the reports, for example.
  • the read module is arranged to read the reports and make the data in the reports available to the extraction module.
  • the extraction module is arranged to analyze the contents of the reports and extract measurements which have the specified measurement unit.
  • the measurement unit may be specified by the user, for example.
  • the display module is arranged to display the extracted measurements, e.g., a table comprising the extracted measurements.
  • the user can now view the extracted measurements and draw a conclusion. For example, if the extracted measurements describe the size of a tumor, the user such as a physician may be able to see whether the tumor expands or contracts. This may help the user to assess the success or failure of a treatment of the tumor.
  • Using a measurement unit for identifying measurements has the further advantage that, while the names of measurements, report structure, and protocols for acquiring measurements may change, the measurement units typically do not change. Thus, using the measurement unit provides a useful way of identifying potentially relevant information comprised in a plurality of medical reports, independent of many changes in the measuring and reporting protocols.
  • system further comprises a graph module for creating a graph based on the extracted measurements. Viewing a graph based on the extracted measurements may help a user to see a trend present in the extracted measurements.
  • the system further comprises a label module for creating a label of each of the extracted measurements. Although all displayed measurements have identical measurement units, it may happen that two measurements from the extracted measurements describe different properties. By having a label displayed near each measurement it becomes easier to identify measurements that do not describe a desired property.
  • the label may display the numerical value of the measurement.
  • the system further comprises a correction module for correcting a measurement from the extracted measurements on the basis of a user input. For example, a measurement describing an undesired property may be deleted from the display, based on a user input.
  • system according to the invention is comprised in an image acquisition apparatus.
  • system according to the invention is comprised in a workstation.
  • a method of extracting measurements from a plurality of medical reports comprising: - a read step for reading the plurality of medical reports; an extraction step for extracting measurements from the plurality of medical reports, based on a measurement unit; and a display step for displaying the extracted measurements.
  • a computer program product to be read by a computer arrangement comprising instructions for extracting measurements from a plurality of medical reports, the computer arrangement comprising a processing module and a memory, the computer program product, after being read, providing said processing module with the capability to carry out the following tasks: reading the plurality of medical reports; extracting measurements from the plurality of medical reports, based on a measurement unit; and displaying the extracted measurements.
  • the method may be applied to reports comprising measurements derived from multidimensional image data, e.g., to 2-dimensional, 3 -dimensional, or 4-dimensional images, acquired by various acquisition modalities such as, but not limited to, standard X-ray Imaging, Computed Tomography (CT), Magnetic Resonance Imaging (MRI), Ultrasound (US), Positron Emission Tomography (PET), Single Photon Emission Computed Tomography (SPECT), Digital Tomosynthesis, and Nuclear Medicine (NM).
  • CT Computed Tomography
  • MRI Magnetic Resonance Imaging
  • US Ultrasound
  • PET Positron Emission Tomography
  • SPECT Single Photon Emission Computed Tomography
  • NM Nuclear Medicine
  • Fig. 1 schematically shows a block diagram of an exemplary embodiment of the system
  • Fig. 2 schematically shows an exemplary table comprising extracted measurements
  • Fig. 3 shows an exemplary graph based on extracted measurements
  • Fig. 4 shows a flowchart of an exemplary implementation of the method
  • Fig. 5 schematically shows an exemplary embodiment of the image acquisition apparatus
  • Fig. 6 schematically shows an exemplary embodiment of the workstation. Identical reference numerals are used to denote similar parts throughout the Figures. DETAILED DESCRIPTION OF EMBODIMENTS
  • Fig. 1 schematically shows a block diagram of an exemplary embodiment of the system 100 for extracting measurements from a plurality of medical reports, the system comprising: - a read module 110 for reading the plurality of medical reports; an extraction module 120 for extracting measurements from the plurality of medical reports, based on a measurement unit; and a display module 130 for displaying the extracted measurements.
  • the exemplary embodiment of the system 100 further comprises the following modules: a graph module 140 for creating a graph based on the extracted measurements; a label module 145 for creating a label of each of the extracted measurements; a correction module 150 for correcting a measurement from the extracted measurements on the basis of a user input; - a control module 160 for controlling the workflow in the system 100 a user interface 165 for communicating with a user of the system 100; and a memory module 170 for storing data.
  • the first input connector 181 is arranged to receive data coming in from a data storage means such as, but not limited to, a hard disk, a magnetic tape, a flash memory, or an optical disk.
  • the second input connector 182 is arranged to receive data coming in from a user input device such as, but not limited to, a mouse or a touch screen.
  • the third input connector 183 is arranged to receive data coming in from a user input device such as a keyboard.
  • the input connectors 181, 182 and 183 are connected to an input control module 180.
  • the first output connector 191 is arranged to output the data to a data storage means such as a hard disk, a magnetic tape, a flash memory, or an optical disk.
  • the second output connector 192 is arranged to output the data to a display device.
  • the output connectors 191 and 192 receive the respective data via an output control module 190.
  • the system 100 comprises a memory module 170.
  • the system 100 is arranged to receive input data from external devices via any of the input connectors 181, 182, and 183 and to store the received input data in the memory module 170. Loading the input data into the memory module 170 allows quick access to relevant data portions by the modules of the system 100.
  • the input data may comprise, for example, the plurality of medical reports.
  • the memory module 170 may be implemented by devices such as, but not limited to, a Random Access Memory (RAM) chip, a Read Only Memory (ROM) chip, and/or a hard disk drive and a hard disk.
  • the memory module 170 may be further arranged to store the output data.
  • the output data may comprise, for example, the extracted measurements.
  • the memory module 170 may be also arranged to receive data from and deliver data to the modules of the system 100 comprising the read module 110, the extraction module 120, the display module 130, the graph module 140, the label module 145, the correction module 150, the control module 160, and the user interface 165, via a memory bus 175.
  • the memory module 170 is further arranged to make the output data available to external devices via any of the output connectors 191 and 192. Storing data from the modules of the system 100 in the memory module 170 may advantageously improve performance of the modules of the system 100 as well as the rate of transfer of the output data from the modules of the system 100 to external devices.
  • the system 100 may comprise no memory module 170 and no memory bus 175.
  • the input data used by the system 100 may be supplied by at least one external device, such as an external memory or a processor, connected to the modules of the system 100.
  • the output data produced by the system 100 may be supplied to at least one external device, such as an external memory or a processor, connected to the modules of the system 100.
  • the modules of the system 100 may be arranged to receive the data from each other via internal connections or via a data bus.
  • the system 100 comprises a control module 160 for controlling the workflow in the system 100.
  • the control module may be arranged to receive control data from and provide control data to the modules of the system 100.
  • the extraction module 120 may be arranged to pass control data "the measurements are extracted” to the control module 160 and the control module 160 may be arranged to provide control data "display the measurements" to the display module 130.
  • a control function may be implemented in another module of the system 100.
  • the system 100 comprises a user interface 165 for communicating with the user of the system 100.
  • the user interface 165 may be arranged to obtain a user input, e.g., a measurement unit and a mode for displaying the measurements in a table or on a graph.
  • a user input e.g., a measurement unit and a mode for displaying the measurements in a table or on a graph.
  • the skilled person will understand that more functions may be advantageously implemented in the user interface 165 of the system 100.
  • the read module 110 of the system 100 is arranged to read the plurality of medical reports.
  • the read module may be arranged to read all medical reports comprised in a pre-determined folder stored in an external memory, e.g., on a hard disk.
  • the plurality of medical reports may be determined based on a user input, e.g., based on a list of file names of files comprising the medical reports.
  • the plurality of the medical reports may be stored in the memory module 170.
  • a data stream comprising data from the plurality of the medical reports may be read by the read module 110 and the data stream may be interpreted by the extraction unit.
  • the skilled person will know many useful ways of implementing the function of reading the plurality of medical reports by the read module 110. The ways outlined above illustrate the invention and should not be construed as limiting the scope of the claims.
  • the extraction module 120 of the system 100 is arranged to extract measurements from the plurality of medical reports, based on a measurement unit.
  • the system 100 of the invention is used for extracting measurements from structured medical reports.
  • structured medical reports each measurement is written in a designated field.
  • the extraction module 120 is arranged to interpret the designated field and extract the measurement.
  • unstructured medical reports measurements may be encoded by an identification string of a unique sequence of bits.
  • the extraction module 120 of the system may be arranged to read and parse the data stream, on the fly or otherwise, of an unstructured medical report and extract the measurement, based on this analysis.
  • the measurement may occupy a pre-defined location in the data stream following the identification string, e.g., a pre-defined location preceding the identification string.
  • the identification string may specify the location of the measurement in the data stream.
  • the identification string comprising the location of the measurement in the data stream may occupy a pre-defined field in a partially structured report.
  • the display module 130 of the system 100 is arranged to display the extracted measurements.
  • Fig. 2 schematically shows an exemplary table comprising extracted measurements.
  • the measurements relate to breast mammography and describe the sizes of the right 3 o'clock lesion in a breast of a patient.
  • the date of the report is shown in the first column of the table, the name of the measurement is shown in the second column and the measurement numerical value is shown in the third column.
  • a measurement was performed in 1997, 1999, 2001 and 2002. In 1997, 1999 and 2001, the name of the measurement was "Size" and the measurement represented the maximum size of the lesion.
  • the measurement unit was mm.
  • the protocol changed and instead of one single largest size, the lesion sizes in the anterior-posterior (AP) and left-right (LR) directions were measured.
  • the system 100 of the invention has collected the measurements corresponding to the measurement unit "mm". Thus, the measurements describing volume, image data intensities, ADC have not been collected by the system 100.
  • the display module is arranged to display the collection of measurements to the user, e.g., in a table such as the one shown in Fig. 2.
  • the term “measurement unit” may comprise a plurality of related units, each for expressing the same physical measurement.
  • the term “measurement unit” may comprise units such as ⁇ m, mm, cm, dm, m, wherein each unit may be used to express the size of the lesion.
  • the system may be further arranged to perform a unit conversion.
  • Fig. 3 shows an exemplary graph based on the extracted measurements shown in the table in Fig. 2.
  • the horizontal axis describes the dates of the reports comprising the measurements shown in Fig. 3.
  • the vertical axis describes the numerical values of these measurements.
  • the first three data points describe the largest size of the lesion.
  • the two rightmost data points describe the AP and LR size. In this graph, the user can easily see the trend in the size of the lesion and the change of the protocol.
  • the measurements in Fig. 3 are represented by squares.
  • the squares are labeled using gray values and a legend 31.
  • the legend describes the meaning of different gray values, i.e., the type of the measurement.
  • Each square is further described by a label describing the numerical value of the measurement.
  • the assignment of gray values, the legend 31 and the labels are created by the label module 145 of the system 100.
  • the label module 145 of the system 100 may be arranged to label measurements displayed in a table such as this shown in Fig. 2.
  • the labels may be displayed in a separate column.
  • Fig. 3 illustrates the invention and does not limit the scope of the claims.
  • the user may use a correction module 150 of the system 100 for correcting this measurement from the extracted measurements on the basis of a user input. For example, the user may position a mouse pointer over the measurement to be corrected, press a mouse button and drag the data point describing the measurement in the displayed graph. When the user releases the mouse button, the data point is dropped at a user-selected location. If the location is outside the area of the graph, the measurement is removed.
  • both a table and a graph comprising measurements can be simultaneously displayed by the display module 130 of the system 100 and a correction of a measurement, as described in the preceding paragraph, performed in the table will be also shown on the graph and vice versa.
  • system 100 described in the current document may be a valuable tool for assisting a physician in many aspects of her/his job.
  • embodiments of the system have been described using an example from mammography, the skilled person will appreciate that other applications are also possible.
  • the modules of the system 100 may be implemented using a processor. Normally, their functions are performed under the control of a software program product. During execution, the software program product is normally loaded into a memory, like a RAM, and executed from there. The program may be loaded from a background memory, such as a ROM, hard disk, or magnetic and/or optical storage, or may be loaded via a network like Internet. Optionally, an application-specific integrated circuit may provide the described functionality.
  • Fig. 4 shows a flowchart of an exemplary implementation of the method 400 of extracting measurements from a plurality of medical reports.
  • the method 400 begins with a read step 410 for reading the plurality of medical reports. After the read step 410, the method 400 continues to an extraction step 420 for extracting measurements from the plurality of medical reports, based on a measurement unit. After the extraction step 420, the method continues to a display step 430 for displaying the extracted measurements. After the display step 430, the method 400 may terminate.
  • the method 400 may continue to a graph step 440 for creating a graph based on the extracted measurements, to a label step 445 for creating a label of each of the extracted measurements, and/or to a correction step 450 for correcting a measurement from the extracted measurements on the basis of a user input.
  • Fig. 5 schematically shows an exemplary embodiment of the image acquisition apparatus 500 employing the system 100, said image acquisition apparatus 500 comprising a CT image acquisition module 510 connected via an internal connection with the system 100, an input connector 501, and an output connector 502. This arrangement advantageously increases the capabilities of the image acquisition apparatus 500, providing said image acquisition apparatus 500 with advantageous capabilities of the system 100.
  • Fig. 6 schematically shows an exemplary embodiment of the workstation 600.
  • the workstation comprises a system bus 601.
  • a processor 610, a memory 620, a disk input/output (I/O) adapter 630, and a user interface (UI) 640 are operatively connected to the user interface bus 601.
  • a disk storage device 631 is operatively coupled to the disk I/O adapter 630.
  • a keyboard 641, a mouse 642, and a display 643 are operatively coupled to the UI 640.
  • the user interface 100 of the invention, implemented as a computer program, is stored in the disk storage device 631.
  • the workstation 600 is arranged to load the program and input data into memory 620 and execute the program on the processor 610.
  • the user can input information to the workstation 600 using the keyboard 641 and/or the mouse 642.
  • the workstation is arranged to output information to the display device 643 and/or to the disk 631.
  • the skilled person will understand that there are numerous other embodiments of the workstation 600 known in the art and that the present embodiment serves the purpose of illustrating the invention and must not be interpreted as limiting the invention to this particular embodiment.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Primary Health Care (AREA)
  • Public Health (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne un système (100) permettant d'extraire des mesures d'une pluralité de comptes-rendus médicaux. Le système comporte un module de lecture (110) pour lire la pluralité de comptes-rendus médicaux; un module d'extraction (120) pour extraire des mesures à partir de la pluralité de comptes-rendus médicaux selon une unité de mesure; et un module d'affichage (130) pour afficher les mesures extraites. Le module de lecture est conçu pour lire les comptes-rendus et rendre les données des comptes-rendus disponibles au module d'extraction. Le module d'extraction est conçu pour analyser les contenus des comptes-rendus et extraire des mesures dont l'unité de mesure est spécifiée par l'utilisateur, par exemple. Le module d'affichage est conçu pour afficher les mesures extraites, par exemple une table comprenant les mesures extraites. L'utilisateur peut maintenant visualiser les mesures extraites et tirer une conclusion à partir des mesures. L'avantage supplémentaire de l'utilisation d'une unité de mesure pour identifier des mesures est constitué par le fait que, bien que les noms de mesures, la structure de compte-rendu et les protocoles d'acquisition de mesures puissent changer, les unités de mesure ne changent typiquement pas. L'utilisation de l'unité de mesure fournit donc un moyen utile pour identifier des informations potentiellement pertinentes incluses dans une pluralité de comptes-rendus médicaux, indépendamment de nombreux changements des protocoles de mesure et de compte-rendu.
PCT/IB2008/052735 2007-07-09 2008-07-08 Regroupement de mesures pour compte-rendu clinique WO2009007909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07112057.0 2007-07-09
EP07112057 2007-07-09

Publications (1)

Publication Number Publication Date
WO2009007909A1 true WO2009007909A1 (fr) 2009-01-15

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1729235A1 (fr) * 2005-06-03 2006-12-06 Agfa Corporation Rapport structuré de l'administrateur de rapport de données

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1729235A1 (fr) * 2005-06-03 2006-12-06 Agfa Corporation Rapport structuré de l'administrateur de rapport de données

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