KR20110009998A - Picture archiving and communication system and management method thereof and dose-volume histogram display device - Google Patents

Abstract

PURPOSE: A system for storing and transferring an image and a method for managing the same are provided to transfer treatment data to EMR(electronic medical record) through a PACS. CONSTITUTION: A method for managing a system for storing and transferring an image comprises: a step of receiving RT(radiation therapy) data by a PACS(picture archiving and communication system) server from an RTP(radio treatment planning) device; a step of determining the presence of treatment planning data group(S820); and a step of storing RT date to the treatment planning data group in case of presence of a treatment planning data group corresponding to RT data.

Description

Image storage and transmission system, its management method, and dose-volume histogram display device {PICTURE ARCHIVING AND COMMUNICATION SYSTEM AND MANAGEMENT METHOD THEREOF AND DOSE-VOLUME HISTOGRAM DISPLAY DEVICE}

The present invention relates to a data processing method and apparatus in a Picture Archiving And Communication System (PACS) for RT (Radiation Therapy), and more particularly, to a method of storing RT data in a PACS, and Device, method and device for adjusting CT image acquired through Radio Treatment Planning (RTP) to be positioned correctly on the screen, and treatment data generated in RTP can be transferred to EMR (Electronic Medical Record) through PACS. The present invention relates to a method and apparatus for transmitting and inputting data, and a method and apparatus for generating dose volume histogram (DVH) using treatment data generated from RTP.

Radiation therapy is a method of treating cancer by irradiating a high dose of radiation to a tumor to be treated while minimizing obstacles to surrounding normal organs by destroying the tissue of the tumor or inhibiting growth.

Treatment planning should be undertaken in order to provide radiation therapy to patients. The treatment planning task is to find a most optimized treatment method by performing a virtual three-dimensional treatment on a computer program based on image data of a patient obtained through CT.

Through the treatment planning work, many parameters for controlling the radiation therapy device (linear accelerator) can be obtained. Such parameters include beam angle, field size, shielding range, dose, and the like. In addition, through the treatment planning work, it is possible to obtain a graph for analyzing the dose distribution curve of the body according to the irradiation and dose information of the tumor site and the protective organs.

Due to the nature of radiation therapy, radiation oncology requires a computerized system equipped with various image storage and retrieval functions. PACS is widely used to provide the above functions.

In the case of the conventional PACS (Picture Archiving And Communication System), in processing RT (Radiation Therapy) data in conjunction with a Radio Treatment Planing (RTP) device, the RTP If none of the data generated by the device and sent to the PACS is available, then all of the data cannot be registered in the treatment plan data group (Study; data group included in the same treatment plan generated via RTP), and thus on the PACS The problem was that the data could not be obtained or queried.

In addition, in the case of the conventional PACS, there is a case where the position information for the CT image transmitted through the RTP is not accurate, there is a problem that the CT image is moved up and down or left and right on the screen and not normally viewed.

In addition, in the case of conventional PACS, when treatment data is generated in the RTP, the operator manually inputs the numerical value on the treatment data on the EMR (Electronic Medical Record) screen. Therefore, there is a problem that the input takes a lot of time and the error occurrence rate due to the input is high.

In addition, the conventional PACS captures the DVH screen on the RTP, and registers the captured DVH screen in the EMR as a picture file and uses it when inquiring. RTP and RT PACS transmit data using the Digital Imaging And Communications In Medicine (DICOM) standard, a medical imaging standard protocol. According to the DICOM standard, a tag is first found in a DICOM file composed of tags, lengths, and values, and the desired value can be obtained by obtaining the length corresponding to the tag and obtaining the value corresponding to the length. . In the DICOM standard, the length is expressed in 2 bytes. Therefore, when the length of DVH data generated by RTP and transmitted to RT PACS exceeds the range of DICOM standard, data processing does not work normally.

In order to achieve the above object, the present invention provides a method and apparatus for storing RT data in a PACS.

The method includes receiving RT data from a radio treatment planing (RTP) device by a picture archiving and communication system (PACS) server, and determining whether a treatment plan data group corresponding to the RT data exists in a database in the PACS server. Storing the RT data in the treatment plan data group if the treatment plan data group corresponding to the RT data exists; and corresponding to the RT data if the treatment plan data group corresponding to the RT data does not exist. It is determined whether a treatment plan data group can be generated, and when the treatment plan data group can be generated, the treatment plan data group is generated, and then the RT data is stored in the treatment plan data group, and the treatment plan data group is generated. The RT day if the generation of Halting the register and is characterized in that waiting for after the above treatment plan data group generating and storing the RT data in the treatment planning data group.

The device is connected to a network with an RTP device, the interface unit for receiving RT data from the RTP device, an information processing unit electronically connected to the interface unit and the database and the database unit for storing the RT data, the information processing unit Determining whether there is a treatment plan data group corresponding to the RT data in the database, and processing the storing of the RT data in the database.

The present invention also provides a method and apparatus for generating a reference point of position relative to a CT image.

The method comprises a step in which a PACS server receives CT image data from an RTP device, wherein the PACS server combines the values of the position of the image, the number of rows, the number of columns, and the inter-pixel distance in the CT image data to determine the CT image position. Calculating a reference point and adjusting, by the PACS server, the position of the dose line using the reference point.

The device is connected to a network with an RTP device to receive CT image data. Combining to calculate the reference point of the CT image position, characterized in that it comprises an information processing unit for adjusting the position of the radiation dose line using the reference point.

In addition, the present invention provides a method and apparatus for automatically inputting the data in the EMR by transmitting the treatment data generated in the RTP to the PACS.

The method comprises the steps of a PACS server receiving treatment data from an RTP device, the PACS server analyzing and storing the treatment data in a database, wherein a broker in the PACS server is provided from an electronic medical record (EMR) device. Receiving a plan order, the broker in the PACS server extracts the beam-related data matched with the plan order of the treatment data contents and the broker transmits the beam-related data to the EMR device through a message Characterized in that it comprises a step.

The device is connected to a network with an RTP device, and is electrically connected to an interface unit for receiving treatment data, the interface unit and a database, and an information processing unit and an interface unit for receiving and storing the treatment data in the database. And a broker unit connected to the EMR and a network, wherein the broker unit receives a plan order from the EMR, and the broker unit matches beam plan data matched with the plan order among contents of the treatment data received by the interface unit. Characterized in that the transmission to the EMR.

The present invention also provides an apparatus for integrating the three functions of the PACS described above to perform the three functions under one single system.

The device is connected to a network with an RTP device, the interface unit for receiving RT data, CT image data and treatment data from the RTP device, an information processor electronically connected to the interface unit, a database electronically connected to the information processor; And a broker unit electronically connected to the interface unit and a network connected to the EMR, wherein the information processing unit determines whether a treatment plan data group corresponding to the RT data exists in the database, and stores the RT data in the database. Wherein the information processing unit calculates a reference point of the CT image position by combining values of the position of the image, the number of rows, the number of columns, and the distance between pixels in the CT image data, and uses the reference point to radiate Adjust the position of the The information processing unit stores the treatment data in the database, the broker unit receives a plan order from an EMR, and the broker unit outputs beam related data matched with the plan order among contents of the treatment data received by the interface unit. Characterized in that the transmission to the EMR.

The present invention also provides a method and apparatus for generating a dose volume histogram (DVH) using the treatment data generated in the RTP.

The method includes parsing Region Of Interest (ROI) data, obtaining an RT file from the RTP, and obtaining coordinate data of the ROI to be drawn in the CT image for each CT image in the RT file. Parsing a dose value of a portion corresponding to the ROI coordinate in a dose image corresponding to the CT image, for each CT image, and obtaining a dose value corresponding to all ROI coordinates for each CT image And calculating, for each CT image, the total volume for each ROI by calculating the volume of the actual ROI for one pixel with the interpixel distance X value, interpixel distance Y value, and slice thickness value of the CT image. It characterized in that it comprises a.

The device is connected to the network by the RTP, the interface unit for obtaining the RT file from the RTP, the information processing unit and the information processing unit and the information processing unit and the electronic and the electronic processing unit and the information processing unit and electronically connected to the storage unit and the storage unit. A display unit for displaying the DVG, wherein the information processing unit parses the ROI data, receives the contents of the file from the interface unit, and obtains coordinate data of the ROI to be drawn in each CT image from the contents of the file. Parsing the dose values of the portions corresponding to the ROI coordinates in the corresponding dose images for each CT image, and obtaining the dose values corresponding to all ROI coordinates, the distance X value between pixels, the distance Y value between pixels, The slice thickness value is used to calculate the volume of the actual ROI for one pixel.

The present invention provides a method and apparatus for storing RT data in a PACS. Thus, the operation of the PACS is made easier, and the problem of loss of RT data caused by the conventional PACS is overcome.

The present invention also provides a method and apparatus for generating a reference point of position for a CT image. Therefore, the CT image caused by the conventional PACS is moved up and down or left and right, so that the CT image is normally inquired at the correct position.

The present invention also provides a method and apparatus for transmitting the treatment data generated in the RTP to the PACS, the data is automatically input to the EMR. Therefore, the treatment data is automatically input, thereby increasing the accuracy of the data and thus the treatment efficiency, and overcoming the occurrence of time consuming and error caused by manually inputting the numerical value of the treatment data in the conventional PACS.

The present invention also provides a method and apparatus for generating DVH using treatment data generated in RTP. Therefore, it is possible to easily obtain information necessary for radiation therapy through the generation of DVH, and solved the problem that is not normally retrieved when the data exceeding the criteria in the conventional PACS.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms "... unit", "... group", "module", etc. described in the specification mean a unit for processing at least one function or operation, which is hardware or software or a combination of hardware and software. It can be implemented as.

The present invention applies to RT PACS. However, the present invention is not limited thereto, and the present invention may be applied to any radiation treatment apparatus, medical apparatus, computer information processing apparatus, or the like to which the technical spirit of the present invention may be applied.

RT data used in the embodiment of the present invention, RT Plan (Radiotheraphy Plan), which is a computerized treatment plan for radiotherapy, a tumor (Tumor) for the radiation treatment plan (Tumor) for RT, and information about the size and location of normal organs RT Structure Set (Radiotherapy Structure Set), the radiation treatment plan and the image generated after the treatment, the RT Image (Radiotheraphy Image), the radiation values used in the treatment plan, the RT Treatment Records (Radiotheraphy Treatment Records), and the radiation dose information from the radiation treatment plan. RT Dose (Radiotheraphy Dose).

To plan a virtual radiotherapy, a computer program must provide a picture so that the CT image can recognize the patient's overall contour, internal structure, and tumor. The figure is provided through the RT Image and the RT Structure Set, and the radiation dose distribution generated by irradiating the virtual radiation in the figures is the RT Dose.

The PACS stores the RT data transmitted through the RTP device and provides the user with an inquiry function of the RT data. Each RT data is transmitted in the form of RT Plan, RT Structure Set, RT Image or RT Dose file. Each RT data belongs to a treatment plan data group (Study), and a corresponding treatment plan data group must exist to store the RT data. Treatment plan data group means a data group included in the same treatment plan generated through RTP.

If no treatment plan data group associated with the data exists, PACS uses the RT data to create a new treatment plan data group. Certain fields are necessary to create a treatment plan data group. However, certain RT data may not have all the necessary fields. RT data that does not have the required fields cannot be directly registered in the database and cannot be obtained or retrieved directly on the PACS because it is not possible to create a corresponding treatment plan data group. Thus, RT data that does not have the required fields should be stored in a separate storage location on hold and then moved to the corresponding treatment plan data group after the corresponding treatment plan data group has been created.

Hereinafter, an embodiment of the present invention for storing RT data in the PACS will be described.

1 is a flowchart illustrating a method of storing RT data in a PACS according to an embodiment of the present invention.

When the RT data storage job is started (S100), first, RT data generated from the RTP device is transmitted to the PACS (S101). After acquiring the data, the PACS checks whether a treatment plan data group (Study) corresponding to the RT data exists in a database in the PACS server (S102). If the corresponding treatment plan data group exists, the RT data is added to and stored in the treatment plan data group (S103), and the RT data storage operation is terminated (S110).

Unique IDs are needed to create different treatment plan data groups. Each treatment plan data group may be distinguished using a treatment plan data group ID value for distinguishing treatment courses and a patient ID value for distinguishing patients in a hospital. That is, when the treatment plan data group ID value and the patient ID value are the same, the same treatment plan is used. Treatment plan data group ID values are generated by the imaging equipment and the RTP.

If the corresponding treatment plan data group does not exist, the PACS determines whether a new treatment plan data group can be generated using the RT data (S104). In order for a new treatment plan data group to be created, it is a question whether the RT data has all the necessary fields necessary for generating the treatment plan data group.

The required field may be date information when a treatment plan data group is created. In this case, the RT data having the date information on which the treatment plan data group is created, such as the RT plan, may create a corresponding new treatment plan data group. However, for RT data that does not have date information, such as RT Dose, RT Image, or RT Structure Set, a corresponding new treatment plan data group cannot be created.

When a new treatment plan data group can be generated according to the determination process (S104), the PACS generates a treatment plan data group according to the field value of the RT data (S105). In this case, the treatment plan data group may be generated as the treatment plan data group ID and the patient ID. After generation, the PACS stores the RT data in the generated treatment plan data group (S106). End the RT data storage operation (S110).

When the new treatment plan data group cannot be generated according to the determination process (S104), the PACS first stores the RT data in the database in an unregistered pending state (S107). The RT data stored in the pending state waits as a pending state until a corresponding treatment plan data group is generated through processing of other RT data or the like (S108). After the treatment plan data group corresponding to the RT data stored in the pending state is generated, the RT data stored in the pending state is moved to the generated treatment plan data group and stored (S109), and the storing operation for the RT data ends. It is made (S110).

2 is a block diagram showing a PACS for storing RT data according to an embodiment of the present invention. The PACS 200 includes an interface unit 210, an information processor 220, a treatment plan data group 231, and a database 230 that stores unregistered state RT data 232.

The interface unit 210 is connected to the external RTP device 240 via a network to receive RT data. The RT data is transmitted to the information processor 220 that is electronically connected to the interface unit 210. The information processor 220 determines whether there is a treatment plan data group 231 corresponding to the RT data for the storage processing of the RT data, and is electronically connected to the database 230 to transmit the RT data to the database 230. Save it.

If there is a treatment plan data group corresponding to the RT data, the information processor 220 stores the RT data in the corresponding treatment plan data group and ends the operation. If the treatment plan data group corresponding to the RT data does not exist, if the RT treatment plan data group can be generated, the treatment plan data group is generated and the RT data is registered in the treatment plan data group and the operation is terminated. . If creation of a treatment plan data group is not possible, the registration of the RT data is suspended, and after the treatment plan data group is created, the RT data is registered in the generated treatment plan data group.

In this case, the information processor 220 may determine the treatment plan data group corresponding to the RT data according to the treatment plan data group ID and the patient ID value in the RT data.

When the information processing unit 220 determines whether a treatment plan data group corresponding to the RT data can be generated, the information processor 220 may determine whether the RT data includes a required field for generating a treatment plan data group. The required field may be the date on which the treatment plan data group was created.

When the information processing unit 220 registers the RT data in the treatment plan data group by waiting for the registration of the RT data and waiting for the treatment plan data group to be generated, the information processing unit includes the RT data in the treatment plan data group. And store the RT data stored in the database in the unregistered state when the treatment plan data group corresponding to the RT data is generated. You can move it.

Of the RT data stored as described above, a picture provided by the RT Image and the RT Structure Set is used to plan the radiation treatment.

Radiotherapy (RT) requires accurate coordinates for the X, Y and Z axes. In the treatment plan, virtual radiation is irradiated based on the CT image of the patient. That is, the radiation distribution is generated in the CT image by irradiating the virtual radiation. The amount of radiation is converted into a numerical value, and the line connecting the points having the numerical value in the same% range is a dose line. By obtaining this radiation dose line, a radiation distribution diagram is generated on the CT. By the way, the radiation dose distribution view the radiation dose of one reference point as 100, and shows the radiation dose of all other points as a percentage. Therefore, if the reference point needs to be changed, it should be recalculated based on the changed reference point and displayed on the screen. The following describes an embodiment of the present invention for finding a reference point of treatment coordinates at a CT image location.

3 is a flowchart illustrating a method of generating and displaying a reference point of a position for a CT image in a PACS according to an embodiment of the present invention. When the CT image position adjustment starts (S300), first RT PACS server receives the CT image data from the RTP device (S301). In the received CT image data, an image position representing the coordinates at which the image starts on an X and Y coordinate system, a width representing the number of X-axis pixels of the image, and a width of the image. Information such as height representing the number of Y-axis pixels and pixel spacing indicating how many mm a pixel is included are included. The reference point of the CT image position is calculated by combining the above-described image position, width, height, and pixel space values (S302).

In the case of X coordinate, the X coordinate of the existing image position is divided by pixel space and converted to pixel unit, and the pixel where the image is to be positioned according to the width of the image and the width of the entire panel screen. The X coordinate values of the units may be compared with each other to obtain an offset value corresponding to the difference. In the case of Y coordinate, the Y coordinate value of the existing image position divided by pixel space is converted into pixel units, and the Y coordinate value of the pixel unit in which the image is to be positioned is compared according to the width of the image and the width of the entire panel screen. To obtain the offset value of the difference.

The RT PACS server adjusts the position of the dose line using the above-described reference point (S303), and finishes the position adjusting operation (S304).

4 is a block diagram illustrating an RT PACS for generating a reference point of a position of a CT image and displaying a screen according to an embodiment of the present invention.

As shown in FIG. 4, the RT PACS 400 according to the present invention includes an interface unit 410 and an information processing unit 420.

The interface unit 410 is connected to the external RTP device 430 by a network and receives CT image data. The CT image data is transmitted to the information processor 420 that is electronically connected to the interface unit 410. The information processing unit 420 calculates a reference point of the CT image position using the information in the CT image data, and adjusts the position of the radiation dose line using the reference point.

In the received CT image data, an image position representing the coordinates of starting the image in the X and Y coordinate systems, a width representing the number of X-axis pixels of the image, and a Y-axis of the image. Information such as a height indicating the number of pixels and a pixel spacing indicating how many mm a pixel is may be included. In this case, the information processor 420 calculates a reference point of the CT image position by combining the values of the image position, width, height, and pixel space.

In the case of X coordinate, the X coordinate of the existing image position is divided by pixel space and converted to pixel unit, and the pixel where the image is to be positioned according to the width of the image and the width of the entire panel screen. The X coordinate values of the units may be compared with each other to obtain an offset value corresponding to the difference. In the case of Y coordinate, the Y coordinate value of the existing image position divided by pixel space is converted into pixel units, and the Y coordinate value of the pixel unit in which the image is to be positioned is compared according to the width of the image and the width of the entire panel screen. To obtain the offset value of the difference.

The treatment data generated in the RTP need to be transmitted to the EMR through the PACS for recording and viewing thereof. EMR provides a paperless environment by storing conventional medical records stored in analog form as digital information through computerization. A broker, an HL7 communication server, is used to communicate information generated on the PACS and information generated on the EMR. The broker is composed of a server program and a client program in the PACS and the EMR, respectively. Hereinafter, an embodiment of the present invention for automatically inputting the treatment data into the EMR apparatus by transmitting the treatment data generated in the RTP to the EMR apparatus through the PACS.

5 is a flowchart illustrating a method of transmitting treatment data generated in RTP to a PACS and inputting the same to an EMR device according to the present invention. When the treatment data input operation is started (S500), the RT PACS server receives the treatment data from the RTP device (S501), and analyzes the treatment data and stores it in a database (S502). The EMR device transmits the plan order which is ID information of the patient to the broker of the RT PACS server through the broker (S503). The broker of the RT PACS server extracts beam related data that is matched with a plan order among the contents of the treatment data (S504). The beam is a generic term for all the information needed to control a radiation therapy device, such as irradiation angle, field size, shielding range, and dose. The broker transmits the beam related data to the EMR apparatus through the message (S505). The treatment data input operation is completed (S506).

The treatment data may be RT data of DIGI (Digiral Imaging And Communication In Medicine) standard.

The message may be a Health Level 7 (HL7) standard message that is a protocol for information exchange between medical information systems. The beam-related data may be inserted into an OBR (Observation) or OBX (Observation Request) segment of the HL7 message and transmitted.

6 is a block diagram of a PACS for receiving treatment data generated in an RTP and inputting the received treatment data to an EMR device according to the present invention.

As shown in FIG. 6, the RT PACS 600 according to the present invention includes an interface unit 610, an information processor 620, a database 630, and a broker 640.

The interface unit 610 is connected to the external RTP device 650 by a network and receives treatment data. The treatment data is transmitted to the information processor 620 that is electronically connected to the interface unit 610. The information processor 620 analyzes the treatment data and stores the treatment data in the database 630. The broker 640 is electrically connected to the interface unit 610 to receive the treatment data from the interface unit. In addition, the broker 640 receives a plan order which is ID information of the patient from the broker 670 of the EMR apparatus 660. The broker 640 extracts beam-related data interworking with a plan order among the contents of the treatment data, and transmits the beam-related data to the broker 670 of the EMR apparatus 660 through a message.

The treatment data may be RT data of DIGI (Digiral Imaging And Communication In Medicine) standard.

The message may be a health level 7 (HL7) standard message, and the beam-related data may be inserted into the OBR and OBX segments of the HL7 message and transmitted.

7 is a block diagram of a single PACS device incorporating the embodiments of the present invention shown in FIGS. 2, 4, and 6.

The PACS 700 includes an interface 710, an information processor 1720, a database 730 and a broker 740 that store the unregistered state RT data 734 and the treatment plan data group 732. The RTP device 750 functions to provide data to the PACS 700, and the EMR device 760 includes a broker 770, and transmits a plan order to the PACS 700 through the broker 770. Receive Beam-related data.

The interface unit 710 performs functions of the interface unit 210 of FIG. 2, the interface unit 410 of FIG. 4, and the interface unit 610 of FIG. 6.

The information processor 720 performs the functions of the information processor 220 of FIG. 2, the information processor 420 of FIG. 4, and the information processor 620 of FIG. 6.

The database 730 performs the functions of the database 230 of FIG. 2 and the database 630 of FIG. 6.

The broker 740 performs the function of the broker 640 of FIG. 6.

The RTP device 750 performs the functions of the RTP device 240 of FIG. 2, the RTP device 430 of FIG. 4, and the RTP device 750 of FIG. 6.

The EMR apparatus 760 and the broker 770 therein perform the functions of the EMR apparatus 660 of FIG. 6 and the broker 670 therein.

This integration enables a single PACS to perform the functions of the apparatus shown in Figures 2, 4 and 6 described above, and to perform the method illustrated in Figures 1, 3 and 5 described above.

The dose distribution in the patient's body generated by imaginary radiation is called dose, and the dose distribution on the CT image is called a dose image. Dose Volume Histogram (DVH) is used to summarize the 3D dose distribution and present it graphically in 2D format. The following describes an embodiment of the present invention for generating DVH using treatment data generated in RTP.

8 is a flowchart illustrating a method for generating DVH using treatment data generated in RTP according to the present invention.

When the DVH creation operation is started (S800), first, ROI (Region Of Interest (ROI) data) indicating a region to be treated is parsed (S810). The ROI data is composed of X and Y coordinates in the RT Structure Set file.

Next, a dose image corresponding to each CT image is prepared. That is, for each CT image, it is checked whether there is a corresponding dose image, and if it does not exist, another dose image is interpolated to generate a corresponding dose image. First, for each CT image, it is checked whether there is a dose image having the same value of the CT image and the Z axis (S820). If there is no dose image with the same value, based on the value of the Z axis of the CT image, the dose images at the closest position before and after the Z axis are interpolated to generate a dose image having the same value as the CT image and the Z axis ( S821). Next, it is checked whether the distance between the pixels of the CT image and the distance between the pixels of the dose image corresponding thereto are the same for each CT image (S830). The interpixel distance refers to the actual physical distance between the pixels. When the distances are different from each other, another dose image is interpolated according to the distance between pixels of the CT image to generate a corresponding dose image (S831).

Next, receive the RT file from RTP. The file obtained from the RTP may be a CT, RT Dose, or RT Structure Set file.

Thereafter, for each CT image, coordinate data of ROI to be drawn on the CT image is first obtained from the file (S840).

Next, a dose value of a portion corresponding to the ROI coordinate in the dose image corresponding to the CT image is parsed from the RT dose file (S850) to obtain a dose value corresponding to all ROI coordinates (S860).

Then, for each CT image, one pixel using a slice thickness value means a distance X value between pixels of the CT image, a distance Y value between pixels, and an actual distance value between CT slices. Calculate the volume of the actual ROI for, and calculates the total volume for each ROI (S870). This completes the DVG creation operation (S880).

9 is a block diagram showing an apparatus for displaying a dose volume histogram (DVH) using treatment data generated in an RTP according to an embodiment of the present invention.

As shown in FIG. 9, the DVH display apparatus 900 according to the exemplary embodiment of the present invention includes an interface unit 910, an information processor 920, and a display unit 930.

The interface unit 910 is connected to the external RTP device 940 via a network and receives the RT file.

The information processor 920 is electronically connected to the interface unit 910 and the display unit 930. The information processing unit 920 receives the contents of the RT file from the interface unit 910 and parses the ROI data to obtain coordinate data of the ROI to be drawn in each CT image. In addition, the information processing unit 920 parses dose values of portions corresponding to the ROI coordinates in the corresponding dose images for each CT image to obtain dose values corresponding to all the ROI coordinates. The information processing unit 920 calculates a volume of the actual ROI for one pixel using the distance X value between pixels, the distance Y value between pixels, and the slice thickness value.

The corresponding dose image for each CT image may be set as a dose image having the same Z-axis value and the same distance between pixels as the CT image. In this case, the information processing unit may control each CT from the first CT image to the last CT image. For the image, if there is no dose image with the same value of the CT image and Z-axis, the other images of the dose are interpolated to generate a dose image of the same value of the CT image and Z-axis. In this case, a dose image may be generated by interpolating dose images at a position closest to the front and rear of the Z axis based on the value of the Z axis of the CT image. In addition, for each CT image, if the distance between the pixels of the CT image and the distance between the pixels of the dose image are different, a function of interpolating and generating the dose image may be additionally performed according to the distance between the pixels of the CT image.

The display unit 930 is electronically connected to the information processing unit to display the DVG under the control of the information processing unit.

The method according to the invention described thus far can be implemented in software, hardware or a combination thereof. For example, the method according to the present invention may be stored on a storage medium (eg, memory, hard disk, etc.) and may be implemented with codes or instructions within a software program that may be executed by a processor. . Such an implementation can be easily implemented by those skilled in the art.

In the above description of the preferred embodiments of the present invention by way of example, the scope of the present invention is not limited only to these specific embodiments, the present invention is in various forms within the scope of the spirit and claims of the present invention The present invention may be modified, changed or improved, and such modified, changed or improved forms are also within the scope of the present invention.

1 is a flow chart illustrating a method of storing RT data in a PACS.

2 is a block diagram showing a PACS for storing RT data

3 is a flowchart illustrating a method of generating and displaying a reference point of a position of a CT image in a PACS on a screen;

4 is a configuration diagram showing the RT PACS for generating a reference point of the position for the CT image to display the screen.

5 is a flowchart illustrating a method of transmitting treatment data generated in RTP to a PACS and inputting the same to an EMR device.

6 is a configuration diagram of a PACS for receiving treatment data generated in the RTP and inputting the EMR device.

7 is a block diagram of a single PACS device incorporating the embodiments of the present invention shown in FIGS. 2, 4 and 6;

8 is a flow chart illustrating a method for generating DVH using treatment data generated in RTP.

9 is a block diagram showing an apparatus for displaying DVH using treatment data generated in RTP.

Claims (19)

Receiving, by a picture archiving and communication system (PACS) server, radiation therapy (RT) data from a radio treatment planing (RTP) device; Determining whether a treatment plan data group corresponding to the RT data exists in a database in the image storage and transmission system server; Storing the RT data in the treatment plan data group if a treatment plan data group corresponding to the RT data exists; And If a treatment plan data group corresponding to the RT data does not exist, it is determined whether a treatment plan data group corresponding to the RT data is possible, and if the treatment plan data group can be generated, the treatment plan data group is generated. After that, the RT data is stored in the treatment plan data group, and if the treatment plan data group cannot be generated, the registration of the RT data is suspended, and after the treatment plan data group is created, the RT data is waited for. And storing the treatment plan data group. The method of claim 1, wherein the treatment plan data group corresponding to the RT data is determined by a treatment plan data group ID and a patient ID of the RT data. The image storage method of claim 1, wherein whether the treatment plan data group corresponding to the RT data can be generated is determined according to whether the RT data includes a required field for generating the treatment plan data group. How to manage your transmission system. 4. The method of claim 3, wherein the required field is a date when a treatment plan data group is created. The method of claim 1, further comprising: suspending registration of the RT data when the creation of the treatment plan data group is not possible and waiting for after the treatment plan data group is created to register the RT data with the treatment plan data group. Is, Storing the RT data in a database in an unregistered state not included in the treatment plan data group; And And moving the RT data stored in the database to the generated treatment plan data group in the unregistered state when the treatment plan data group corresponding to the RT data is generated. The method of claim 1, Receiving, by the image storage and transmission system server, Computed Tomography (CT) image data from the RTP device; Calculating, by the image storage and transmission system server, a reference point of the CT image position by combining values of the position of the image, the number of rows, the number of columns, and the interpixel distance in the CT image data; And And adjusting, by the image storage and transmission system server, a position of a dose line using the reference point. The coordinate system of claim 6, wherein the reference point is a value obtained by dividing a coordinate value of an existing image position by pixel space and converting it in pixel units, and coordinates of the pixel unit in which the image is to be positioned according to the width of the image and the width of the entire panel screen. Comparing the values with each other, and obtaining and adjusting an offset value corresponding to the difference. The method of claim 1, Receiving, by the image storage and transmission system server, treatment data from an RTP device; Analyzing and storing the treatment data in a database by the image storage and transmission system server; Receiving, by a broker in the image storage and transmission system server, a plan order from an electronic medical record (EMR) device; Extracting, by a broker in the image storage and transmission system server, beam-related data that is matched with a plan order among contents of the treatment data; And And transmitting, by the broker, the beam related data to an EMR device through a message. The method of claim 8, wherein the treatment data is RT data of a digital imaging and communication in medicine (DICOM) standard. The method of claim 8, wherein the message is a HL7 (Health level 7) standard message, and the beam-related data is inserted and transmitted in an OBR and OBX segment of the HL7 message. An interface unit connected to a network with an RTP device to receive RT data, CT image data, and treatment data from the RTP device; An information processor electronically connected to the interface unit; A database electronically connected to the information processing unit; And A broker unit electrically connected to the interface unit and connected to an EMR network; The information processing unit determines whether a treatment plan data group corresponding to the RT data exists in the database, and processes the operation of storing the RT data in the database. In addition, the information processing unit calculates a reference point of the CT image position by combining values of the position of the image, the number of rows, the number of columns, and the interpixel distance in the CT image data, and calculates the position of the radiation dose line using the reference point. Adjust, In addition, the information processing unit stores the treatment data in the database, The broker unit receives a plan order from the EMR, The broker unit may transmit the beam-related data, which is matched with the plan order, among the contents of the treatment data received by the interface unit to the EMR through a message. 12. The method of claim 11, wherein the information processing unit stores the RT data in the treatment plan data group when the treatment plan data group corresponding to the RT data, and if there is no treatment plan data group corresponding to the RT data If the RT treatment plan data group can be generated, the treatment plan data group is generated and the RT data is registered in the treatment plan data group, and if the treatment plan data group cannot be generated, the RT is generated. And hold the registration of the data and wait after the treatment plan data group has been created to register the RT data with the treatment plan data group. The information processing unit of claim 12, wherein the information processing unit registers the RT data in the treatment plan data group by waiting for the registration of the RT data and waiting after the treatment plan data group is generated. Storing the RT data in a database in an unregistered state not included in the treatment plan data group, And when the treatment plan data group corresponding to the RT data is generated, move the RT data stored in the database to the generated treatment plan data group in the unregistered state. The coordinate system of claim 11, wherein the reference point is a value obtained by dividing a coordinate value of an existing image position by pixel space and converting it in pixel units, and coordinates of a pixel unit in which the image is to be positioned according to the width of the image and the width of the entire panel screen. And compare the values with each other, obtain an offset value corresponding to the difference, and adjust the image. The image storage and transmission system of claim 11, wherein the treatment data is RT data of DICOM (Digital Imaging And Communication In Medicine) standard. 12. The system of claim 11, wherein the message is a HL7 (Health Level 7) standard message, and the beam-related data is inserted into an OBR and OBX segment of the HL7 message and transmitted. An interface unit connected to a network with an RTP to obtain an RT file from the RTP; An information processor electrically connected to the interface unit and the storage unit; And A display unit which is connected to the information processor electronically and displays a dose volume histogram (DVG) under the control of the information processor, The information processing unit parses ROI (region of interest) data, receives the contents of the file from the interface unit, and obtains coordinate data of the ROI to be drawn in each CT image from the contents of the file, respectively. Parse the dose values of the portions corresponding to the ROI coordinates in the corresponding dose images for the CT images of, obtain the dose values corresponding to all ROI coordinates, and measure the distance between pixels X, the distance between pixels Y, and slice ( Slice) A dose-volume histogram display device that calculates the volume of the actual ROI for a pixel as a thickness value. The dose-volume histogram display device according to claim 17, wherein the RT file obtained from the RTP is a CT, RT Dose, or RT Structure Set file. 18. The method of claim 17, wherein the information processing unit interpolates the different dose images for each CT image from the first CT image to the last CT image if there is no dose image having the same value as the CT image and the Z axis. Create a dose image with the same CT image and Z-axis value, and for each CT image, if the distance between the pixels in the CT image and the pixels in the dose image are different, adjust the dose image to match the distance between the pixels in the CT image. To interpolate and generate more, A dose-volume histogram display device, characterized in that the dose image corresponding to the CT image is a dose image having the same Z-axis value and the same distance between pixels as the CT image.

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