JP5523975B2 - DICOM communication system and DICOM communication program - Google Patents

Description

  Embodiments described herein relate generally to a DICOM communication system and a DICOM communication program.

  DICOM (Digital Imaging and Communications in Medicine) is known as a medical image data communication standard. A user such as a service engineer of a medical device sets connection conditions for each medical device when the medical device is installed and connected to a network. Each medical device connected to the network is mutually recognized with an AE title for identifying an AE (Application Entity) at the application level.

  Therefore, when a new medical device is connected to the network, it is necessary to ensure the uniqueness of the AE title. Therefore, a registry (registration list) dedicated to AE titles is prepared and managed so that duplicate AE titles are not set. If the AE titles overlap, the user needs to change the AE title and re-register.

  In DICOM communication, an extended specification is created as a supplement. DICOM Supplement 67-Configuration Management stores specifications for each medical device on a dedicated server for DICOM communication, updates the stored medical device information from the medical device, and a dedicated server for DICOM communication. Stipulates specifications for retrieving (Query) information on other medical devices stored in That is, Supplement 67 defines a specification for updating own station information such as an AE title of a medical device stored in a dedicated server, and a specification for accessing the dedicated server and searching for other station information of the medical device.

JP 2006-285376 A

  However, the introduction of Supplement 67 to medical image data communication has not progressed. This means that if a dedicated server for Supplement 67 is newly installed in an existing DICOM communication network in which multiple medical devices are connected to each other, registration of AE titles for all medical devices including existing medical devices is required. It is due to that. That is, if a new device is newly connected and the same AE title as that of the existing device is first registered in the dedicated server for the new device, the existing device cannot register the AE title in the dedicated server. In this case, the Update transaction of the existing device becomes an error, and the AE title of the existing device must be changed. This makes it impossible to operate DICOM communications using existing AE titles.

  In order to avoid duplicate registration of AE titles and continue operation of DICOM communication using existing AE titles, it is possible to extract all AE titles of all existing devices and assign non-overlapping AE titles to new devices. . However, this requires a new mechanism for inquiring and registering AE titles from dedicated servers to each existing device. Furthermore, when a medical device such as an image diagnostic apparatus is imaging, an inquiry from a dedicated server may adversely affect imaging. Therefore, it is not preferable for the dedicated server to make an inquiry to an existing device from the viewpoint of medical safety.

  The present invention affects existing operations in DICOM communication, such as specifications for registering and updating information for each medical device such as AE titles in the server and specifications for retrieving information on other medical devices from the server. An object of the present invention is to provide a DICOM communication system and a DICOM communication program that can be introduced without giving.

  The DICOM communication system according to the embodiment of the present invention includes a registration information storage unit, a registration unit, and a change unit. The registration unit indicates the identification information of the medical device from the DICOM communication client of the medical device and whether the medical device is a new device newly connected to DICOM communication or an existing device connected to DICOM communication. In response to a request for registration of device information including information, the device information is written in the registration information storage unit. The changing unit changes the identification information of the new device when the identification information of the existing device that is the same as the identification information of the new device is stored in the registration information storage unit.

  The DICOM communication system according to the embodiment of the present invention includes a DICOM communication server and a DICOM communication client. The DICOM communication client is connected to the DICOM communication server via a network and is provided in the medical device. The DICOM communication client includes a device information storage unit and a registration request unit. The device information storage unit includes device information including identification information of the medical device and information indicating whether the medical device is a new device newly connected to DICOM communication or an existing device connected to DICOM communication. Remember. The registration request unit transmits the device information registration request to the DICOM communication server via the network. On the other hand, the DICOM communication server includes a registration information storage unit, a registration unit, and a change unit. The registration information storage unit receives the device information registration request and writes the device information in the registration information storage unit. The changing unit changes the identification information of the new device when the identification information of the existing device that is the same as the identification information of the new device is stored in the registration information storage unit.

  Further, the DICOM communication program according to the embodiment of the present invention is a DICOM communication program that is a new device in which the medical device identification information and the medical device are newly connected to DICOM communication from a DICOM communication client of the medical device. A registration unit that receives a registration request for device information including information indicating whether the device is an existing device connected to communication, and writes the device information in the storage unit, and an existing device that is identical to the identification information of the new device in the storage unit When the identification information is stored, it is made to function as a changing unit that changes the identification information of the new device.

The block diagram of the DICOM communication system which concerns on embodiment of this invention. The figure which shows an example of the apparatus information preserve | saved at the apparatus information storage part 10 of the some medical apparatus shown in FIG. The sequence chart which shows the flow at the time of registering the apparatus information containing AE title of a medical apparatus in a DICOM communication server in the DICOM communication system shown in FIG. The flowchart which shows an example of the determination process for changing the AE title of a new apparatus in the DICOM communication server shown in FIG.

  A DICOM communication system and a DICOM communication program according to embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a configuration diagram of a DICOM communication system according to an embodiment of the present invention.

  The DICOM communication system 1 has a configuration in which a DICOM communication server 2 and a DICOM communication client such as a communication terminal provided in a plurality of medical devices 3A and 3B are connected via a network 4. Note that configurations other than the DICOM communication client of the medical devices 3A and 3B are omitted. For this reason, the medical devices 3A and 3B and the DICOM communication client will be described below without distinction.

  Medical devices 3A and 3B include ultrasonic diagnostic equipment, X-ray CT (computed tomography) equipment, magnetic resonance imaging (MRI), nuclear medicine diagnostic equipment, X-ray diagnostic equipment, etc. and hospital information Medical information such as hospital information system (HIS), radiology information system (RIS), picture archiving and communication system (PACS), laboratory information system (LIS) There are systems. The DICOM communication server 2 can also be built in the medical information system.

  The medical devices 3A and 3B include an existing device 3A already connected to the DICOM communication server 2 and a new device 3B newly connected to the DICOM communication server 2.

  The DICOM communication server 2 is configured using a computer including an input device 2A, a storage device 2B, and an arithmetic device 2C. The DICOM communication server 2 causes the computing device 2C to read the server DICOM communication program stored in the storage device 2B, thereby causing the computing device 2C of the computer to respond to the device information registration response unit 5, the AE title duplication detection unit 6, and the AE title. The storage device 2B functions as the registration information storage unit 9 as the generation update unit 7 and the AE title search response unit 8, respectively.

  On the other hand, in addition to the input device 3C, the new device 3B includes a device information storage unit 10 for performing DICOM communication, a device information registration request unit 11, an AE title search request unit 12, an AE title change detection unit 13, and an AE title change. A portion 14 is provided. These elements can also be constructed by causing the arithmetic unit to read the client DICOM communication program stored in the storage device provided in the new device 3B. Although the detailed configuration of the existing device 3A is omitted in FIG. 1, it includes at least a device information storage unit 10 and a device information registration request unit 11, and can be configured similarly to the new device 3B. Also, elements that are not related to DICOM communication between the new device 3B and the existing device 3A are omitted.

  A circuit may be used to configure some elements for DICOM communication of the DICOM communication server 2 and the medical devices 3A and 3B. The DICOM communication server program and the DICOM communication client program can be recorded on a medium such as a CD (compact disc) or a USB (Universal Serial Bus) memory and distributed as a program product.

  The device information storage unit 10 of each of the medical devices 3A and 3B stores device information for each of the medical devices 3A and 3B necessary for DICOM communication including the AE title. Device information that can be arbitrarily set by the user, such as an AE title, can be input to the device information storage unit 10 by operating the input device 3C connected to the medical devices 3A and 3B. The set AE title is used as identification information for the medical devices 3A and 3B.

  FIG. 2 is a diagram illustrating an example of device information stored in each of the device information storage units 10 of the plurality of medical devices 3A and 3B illustrated in FIG.

  FIG. 2 shows an example of device information stored in each of two existing devices 3A and one new device 3B. As shown in FIG. 2, in addition to the attribute information of the medical devices 3A and 3B such as the host name, IP (Internet Protocol) address, AE title, port number, and service type, the device information setting items include the medical device 3A, A status indicating whether 3B is new or existing is listed.

  For example, in the device information of the medical device A that is the existing device 3A, the host name setting value is HostA, the IP address setting value is 192.168.0.10, the AE title setting value is DICOM_LOCAL_SCU, and the port number setting value is In 104, the service type setting value is set to MWM, and the status setting value is set to existing. Similarly, device information is set for the medical device B and the medical device C as shown in FIG. However, since the medical device C is the new device 3B, the status value is new.

  SCU (Service Class User) indicates a side that uses a specific service in DICOM communication, and SCP (Service Class Provider) indicates a side that provides a service. MWM (Modality Worklist Management) is a service that modifies the Performed Procedure Step (MPPS), which is a service that controls the issuance of scheduled examination information, in which the modality queries a medical system such as RIS to search for reserved examination information. It is a service that performs examination status notification control that communicates the situation to a medical system such as RIS. STORAGE is a service for transmitting and receiving image information.

  The device information registration request unit 11 has a function of acquiring the device information stored in the device information storage unit 10 and transmitting a device information registration request to the DICOM communication server 2 via the network 4.

  When the device information registration response unit 5 of the DICOM communication server 2 receives a device information registration request together with device information from the device information registration request unit 11 of the medical devices 3A and 3B, the status of the device information that has received the registration request is displayed. It has a function of determining whether it is new or existing, and a function of writing the device information that has received the registration request in the registration information storage unit 9 when the status of the device information that has received the registration request is new. In addition, when the status of the device information for which the registration request has been received is already existing, the device information registration response unit 5 selects an AE title that is the same as the AE title of the device information for which the status has already been received. A function of determining whether or not device information as a set value is stored in the registration information storage unit 9 and writing the device information that has received the registration request to the registration information storage unit 9 when it is determined that the device information is not stored Have

  Accordingly, a plurality of device information corresponding to the plurality of medical devices 3A and 3B as shown in FIG. 2 is stored in the registration information storage unit 9, and a database of device information that can be centrally managed is constructed. Then, by storing the device information in the registration information storage unit 9, the registration of the device information is executed. In addition, there is no duplicate registration of AE titles between the existing devices 3A, and the uniqueness of the AE title is ensured, while the device information of the new device 3B having the same AE title as the setting value of the existing device 3A is set. You can register. Therefore, AE titles may be registered in duplicate between the new device 3B and the existing device 3A.

  The AE title duplication detection unit 6 searches for device information corresponding to the plurality of medical devices 3A and 3B stored in the registration information storage unit 9, and finds an AE title that is duplicated between the new device 3B and the existing device 3A. A function to detect and a function to notify the AE title generation / update unit 7 of the detected AE title when an overlapping AE title is detected. The AE title duplication detection unit 6 can be configured to search the registration information storage unit 9 using, for example, a predesignated time or instruction information from the input device 2A as a trigger. Alternatively, every time the device information registration response unit 5 writes the device information of the existing device 3A into the registration information storage unit 9, the device information registration response unit 5 notifies the AE title duplication detection unit 6 that the device information has been registered, and the AE title duplication detection unit 6 However, the registration information storage unit 9 may be searched using the notification from the device information registration response unit 5 as a trigger.

  The AE title generation / update unit 7 generates a new AE title that is not stored in the device information storage unit 10 when the duplicate AE title is received from the AE title duplication detection unit 6, and the generated new AE It has a function of updating the AE title stored in the device information storage unit 10 by assigning the title to the device information of the new device 3B whose status setting value is new.

  Note that, when an overlapping AE title is updated in the device information of the new device 3B, the AE title generation / update unit 7 may update the setting value of the status of the device information to an existing one. However, the AE title generation / updating unit 7 adds information indicating that the AE title has been updated and is not duplicated to the device information, and updates the status setting value to the existing using the instruction information from the input device 2A as a trigger. You may do it.

  The AE title search response unit 8 has a function to search the registration information storage unit 9 and acquire a corresponding AE title when receiving an AE title search request from the medical devices 3A and 3B via the network 4, and an acquisition The AE title is notified by transmitting it to the corresponding medical devices 3A and 3B via the network 4.

  On the other hand, the AE title search request unit 12 of the medical devices 3A and 3B transmits the AE title search request information, which is the local station information registered in the registration information storage unit 9 of the DICOM communication server 2, to the network 4 at a desired time. A function to transmit to the AE title search response unit 8 of the DICOM communication server 2 and a function to give the AE title change detection unit 13 with the AE title acquired from the AE title search response unit 8 as a response to the request. As a trigger for transmitting search request information, instruction information from the input device 3C, imaging operation end information, or the like can be used.

  The AE title change detection unit 13 acquires the AE title stored in the device information storage unit 10, that is, the initially set AE title, and acquires the AE title stored in the device information storage unit 10 and the AE title search response unit 8. It has a function to detect the change of AE title by comparing with AE title. That is, the AE title change detection unit 13 has a function of detecting whether or not the AE title initially set in the new device 3B has been changed and registered in the DICOM communication server 2. The AE title change detection unit 13 is configured to give the AE title acquired from the AE title search response unit 8 to the AE title change unit 14 when the AE title has been changed.

  The AE title search request unit 12 once writes the AE title acquired from the AE title search response unit 8 in the device information storage unit 10 separately from the initially set AE title, and the AE title change detection unit 13 inputs the input device 3C. The two AE titles read from the device information storage unit 10 may be compared in response to a trigger such as instruction information from.

  When the AE title change unit 14 acquires the changed AE title in the DICOM communication server 2 from the AE title change detection unit 13, the AE title saved in the device information storage unit 10 is changed to the changed AE title. Has a function to update.

  The setting value of the status of the device information stored in the device information storage unit 10 can be changed from new to existing at a desired timing by operating the input device 3C. For example, after the device information of all the existing devices 3A is registered in the DICOM communication server 2, the status can be changed from new to existing by operating the input device 3C.

  Next, the operation and action of the DICOM communication system 1 will be described.

  FIG. 3 is a sequence chart showing a flow when registering device information including the AE titles of the medical devices 3A and 3B in the DICOM communication server 2 in the DICOM communication system 1 shown in FIG.

  Here, a case where the device information of the new device 3B including the same AE title as the AE title of the existing device 3A is registered in the DICOM communication server 2 before the existing device 3A will be described as an example.

  First, in step S1, device information including an AE title is set in the new device 3B. The set device information is stored in the device information storage unit 10 in the new device 3B.

  Next, in step S <b> 2, the device information registration request unit 11 of the new device 3 </ b> B acquires device information stored in the device information storage unit 10 and makes a request for registering device information to the DICOM communication server 2.

  Then, in step S3, the device information registration response unit 5 of the DICOM communication server 2 determines whether the status of the device information that has received the registration request is new or existing. Then, the device information registration response unit 5 determines that the status of the device information is new.

  For this reason, in step S4, the device information registration response unit 5 writes the device information of the new device 3B in the registration information storage unit 9 of the DICOM communication server 2. As a result, the device information of the new device 3B is registered in the DICOM communication server 2.

  On the other hand, in step S5, the new device 3B becomes capable of imaging and enters an imaging state or a pause state.

  Next, in step S6, device information including the AE title is set in the existing device 3A. The set device information is stored in the device information storage unit in the existing device 3A.

  Next, in step S <b> 7, the device information registration request unit of the existing device 3 </ b> A acquires the device information stored in the device information storage unit of the existing device 3 </ b> A, and requests the DICOM communication server 2 to register the device information.

  Then, in step S8, the device information registration response unit 5 of the DICOM communication server 2 determines whether the status of the device information that has received the registration request is new or existing. Then, the device information registration response unit 5 determines that the status of the device information is existing. Therefore, the device information registration response unit 5 determines whether or not device information of another existing device 3A having the same AE title as a set value is stored in the registration information storage unit 9. Here, it is assumed that the device information registration response unit 5 determines that the device information of the other existing device 3A having the same AE title as the set value is not stored in the registration information storage unit 9.

  For this reason, in step S9, the device information registration response unit 5 writes the device information of the existing device 3A that has received the registration request in the registration information storage unit 9. As a result, the device information of the existing device 3A is registered in the DICOM communication server 2. Further, the device information registration response unit 5 notifies the AE title duplication detection unit 6 that the device information of the existing device 3A has been registered.

  Then, in step S10, the AE title duplication detection unit 6 searches for device information corresponding to the plurality of medical devices 3A and 3B stored in the registration information storage unit 9, and duplicates between the new device 3B and the existing device 3A. It is determined whether or not there is an AE title being played. Here, it is assumed that the AE title duplication detection unit 6 determines that there is an overlapping AE title. For this reason, the AE title duplication detection unit 6 detects duplicate AE titles and notifies the AE title generation / update unit 7 of the detected AE titles.

  Note that the AE title duplication detection unit 6 may start a search for duplicate AE titles using the search start instruction information from the input device 2A as a trigger.

  Next, in step S11, the AE title generation / update unit 7 generates a new AE title that is not stored in the device information storage unit 10, and assigns the generated new AE title to the device information of the new device 3B. As a result, the AE title of the new device 3B stored in the device information storage unit 10 is updated.

  On the other hand, in step S12, the existing device 3A can perform imaging, and enters an imaging state or a pause state.

  In addition, the imaging of the new device 3B ends and enters a dormant state. Then, for example, an AE title search request instruction to the DICOM communication server 2 is input to the AE title search request unit 12 from the input device 3C of the new device 3B.

  Then, in step S13, the AE title search request unit 12 of the new device 3B makes a search request for the AE title of the new device 3B to the DICOM communication server 2.

  For this reason, in step S14, the AE title search response unit 8 of the DICOM communication server 2 searches the registration information storage unit 9 and acquires the AE title of the corresponding new device 3B. Then, the AE title search response unit 8 notifies the new device 3B of the acquired AE title.

  Next, in step S15, the AE title search request unit 12 of the new apparatus 3B acquires the AE title from the AE title search response unit 8, and provides the acquired AE title change detection unit 13. Then, the AE title change detection unit 13 compares the AE title stored in the device information storage unit 10 with the AE title acquired from the AE title search response unit 8 so that the DICOM communication server 2 determines the AE title of its own station. It is determined whether or not it has been changed. Since the AE title has been changed in step S11, the AE title change detection unit 13 determines that the AE title has been changed, and detects a change in the AE title. Then, the AE title change detection unit 13 gives the changed AE title acquired from the AE title search response unit 8 to the AE title change unit 14.

  Next, in step S <b> 16, the AE title changing unit 14 updates the AE title stored in the device information storage unit 10 with the changed AE title acquired from the AE title change detection unit 13. Thereby, the AE title changed in the DICOM communication server 2 so that it may not overlap is preserve | saved at the apparatus information storage part 10. FIG.

  In step S <b> 17, the new device 3 </ b> B can take an image and enters an imaging state or a pause state.

  On the other hand, in step S18, the DICOM communication server 2 enters a monitoring state of a device information registration request and an AE title search request.

  FIG. 4 is a flowchart showing an example of determination processing for changing the AE title of the new device 3B in the DICOM communication server 2 shown in FIG.

  The process of changing the AE title of the new device 3B on the DICOM communication server 2 side is as shown in the flowchart of FIG. 4, for example.

  That is, in step S20, the DICOM communication server 2 is in a monitoring state of a registration request for device information.

  When there is a request for registration of device information from the medical devices 3A and 3B, in step S21, the device information registration response unit 5 determines that a registration request has been detected.

  Next, in step S22, the device information registration response unit 5 determines whether or not the AE title has been updated in the device information requested to be registered.

  If it is determined that the AE title has been updated, in step S23, the device information registration response unit 5 determines whether the device information requested for registration is that of the new device 3B. . That is, it is determined whether the status of the device information is new or existing.

  If it is determined that the device information requested for registration is not that of the new device 3B, in step S24, the AE title duplication detection unit 6 determines whether or not the AE title is duplicated. That is, it is determined whether or not device information including the same AE title as the registration requested AE title is stored in the registration information storage unit 9.

  Then, it is determined that the AE titles are duplicated, and the device information registration response unit 5 stores the device information of the other existing device 3A including the same AE title as the registration request for the registration information storage unit 9. If it is determined that the AE title is not stored, it is determined in step S25 that the AE title overlap destination is the new device 3B.

  In this case, in step S <b> 26, the AE title generation / update unit 7 changes the AE title of the new device 3 </ b> B stored in the device information storage unit 10 and changes it.

  On the other hand, if it is determined NO in the determinations in steps S21 to S25, the AE title of the new device 3B stored in the device information storage unit 10 is not changed, and the DICOM communication server 2 requests registration of the device information. Monitoring state.

  In other words, the DICOM communication system 1 as described above can register in the DICOM communication server 2 device information having identification information indicating that the medical device is a new device 3B newly connected to the DICOM communication server 2 as an item. It is a thing. Furthermore, the DICOM communication system 1 registers as it is when the AE title requested for registration to the DICOM communication server 2 is that of the new device 3B, while the AE title requested for registration is that of the existing device 3A. In some cases, duplication with the already registered AE title is confirmed, and the duplicated AE title of the new device 3B is changed and registered.

  For this reason, according to the DICOM communication system 1, the registration of the AE title of the existing device 3A has priority over the registration of the AE title of the new device 3B. As a result, the DICOM Supplement 67 can be introduced into the existing DICOM communication without affecting the AE title of the existing apparatus 3A. That is, the update transaction for accessing the DICOM communication server 2 from the medical devices 3A and 3B and updating the device information of the local station stored in the DICOM communication server 2 and the query transaction for retrieving the device information including the AE title of the counterpart station Can be implemented as an extension of DICOM communication without affecting existing operations.

  Also, in the DICOM communication system 1, the AE title of the new device 3B that is automatically duplicated in the DICOM communication server 2 is changed, and changed from the DICOM communication server 2 as a response to the local station information search request from the new device 3B. The later AE title is notified to the new device 3B. That is, without making an inquiry from the DICOM communication server 2 to the medical devices 3A and 3B, it is confirmed at a desired time whether or not the AE title has been changed on the new device 3B side, and the local station information acquired from the DICOM communication server 2 AE title can be reset using.

  For this reason, it is possible to avoid inquiries to the medical devices 3A and 3B that may be imaging, and to ensure medical safety. Further, the DICOM Supplement 67 can be introduced within the scope of the DICOM communication standard without using a special standard such as an inquiry from the DICOM communication server 2 to the medical devices 3A and 3B.

1 DICOM Communication System 2 DICOM Communication Server 2A Input Device 2B Storage Device 2C Arithmetic Device 3A Medical Device (Existing Device)
3B Medical device (new device)
3C input device 4 network 5 device information registration response unit 6 AE title duplication detection unit 7 AE title generation update unit 8 AE title search response unit 9 registration information storage unit 10 device information storage unit 11 device information registration request unit 12 AE title search request Part 13 AE Title Change Detection Part 14 AE Title Change Part

Claims (5)

A registration information storage unit;
A device including identification information of the medical device from a DICOM communication client of the medical device and information indicating whether the medical device is a new device newly connected to DICOM communication or an existing device connected to DICOM communication A registration unit that receives an information registration request and writes the device information in the registration information storage unit;
A change unit that changes the identification information of the new device when the same identification information of the existing device as the identification information of the new device is stored in the registration information storage unit;
DICOM communication system with DICOM communication server,
A DICOM communication client connected to the DICOM communication server via a network and provided in a medical device;
The DICOM communication client
Device information storage for storing device information including identification information of the medical device and information indicating whether the medical device is a new device newly connected to DICOM communication or an existing device connected to DICOM communication And
While having a registration request unit that transmits a registration request for the device information to the DICOM communication server via the network,
The DICOM communication server is
A registration information storage unit;
A registration unit that receives the device information registration request and writes the device information in the registration information storage unit;
A change unit that changes the identification information of the new device when the same identification information of the existing device as the identification information of the new device is stored in the registration information storage unit;
DICOM communication system with When a search request for changed identification information is received from the DICOM communication client of the new device via the network, the changed identification information is acquired from the registered information storage unit and the DICOM communication client of the new device The DICOM communication system according to claim 1, further comprising a search response unit that transmits to the network via the network. The DICOM communication system according to claim 2, wherein the DICOM communication client further includes a changing unit that updates the identification information stored in the device information storage unit using the changed identification information. Computer
A device including identification information of the medical device from a DICOM communication client of the medical device and information indicating whether the medical device is a new device newly connected to DICOM communication or an existing device connected to DICOM communication A registration unit that receives the information registration request and writes the device information to the storage unit; and the identification information of the new device when the same device identification information as the identification information of the new device is stored in the storage unit. Change part to change,
DICOM communication program to function as.

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