WO2005003977A1 - 画像データベースシステム - Google Patents
画像データベースシステム Download PDFInfo
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- WO2005003977A1 WO2005003977A1 PCT/JP2004/009003 JP2004009003W WO2005003977A1 WO 2005003977 A1 WO2005003977 A1 WO 2005003977A1 JP 2004009003 W JP2004009003 W JP 2004009003W WO 2005003977 A1 WO2005003977 A1 WO 2005003977A1
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- WIPO (PCT)
- Prior art keywords
- image
- image database
- database server
- data
- control unit
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2089—Redundant storage control functionality
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- 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
- G16H30/00—ICT specially adapted for the handling or processing of medical images
- G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
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- 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
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/912—Applications of a database
- Y10S707/913—Multimedia
- Y10S707/915—Image
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/912—Applications of a database
- Y10S707/941—Human sciences
Definitions
- the present invention relates to an image database system that stores a large amount of medical image information captured by a modality device such as a CT device or an MRI device as electronic information and contributes to diagnosis.
- a modality device such as a CT device or an MRI device
- An integrated management server comprising: a control unit that manages a large amount of medical images stored in the plurality of image servers on the network based on the recorded second search information;
- a medical image management system that allows quick access to a desired image server via the integrated management server.
- Patent Document 1 JP 2002-245173 A
- a physical layer and a data link layer of the network are Ethernet (registered trademark) and a transport layer and a network are described in an OSI (Open Systems Interconnection) reference standard model.
- the layer is composed of TCP / IP (Transmission Control Protocol / Internet Protocol) and is above the session layer.
- Comprehensible DICOM (Digital Imaging and Communication for Medicine) protocol a diagnostic imaging standard in the medical field, is stored as DICOM images consisting of tag information and image data at each image server (DICOM Sanoku) via a network.
- DICOM images consisting of tag information and image data at each image server (DICOM Sanoku) via a network.
- DICOM images consisting of tag information and image data at each image server (DICOM Sanoku) via a network.
- DICOM view II a dedicated image view II
- the present invention provides a device that uses the DICOM protocol to access image data at high speed irrespective of an increase in the image data, and also has a high reliability that can manage the image data as a whole. To provide a highly efficient image database system.
- a first characteristic configuration of an image database system is a storage system for storing medical image data, as described in claim 1 of the claims.
- a unit, a control unit that manages the storage unit, and attribute information including key information associated with medical image data stored in the storage unit are stored.
- Image data for An image database server that performs relay processing and a DICOM gateway that relays medical image data using the DICOM protocol between the image database server and a plurality of modality devices that are externally connected to each other are connected to a network via a switch.
- the control unit, the image database server, and the DIC OM gateway are respectively provided in plurality, and a control unit group, an image database server group, and a DICOM gateway group are configured. The point is that a load balancer for controlling the load distribution is provided for each group.
- control unit In the second feature configuration, as described in claim 2, the control unit, the image database server, and the DICOM gateway are the same as the first feature configuration.
- a first network via a first switch for processing jobs relating to external requests from the modality device and a second network via a second switch for processing jobs relating to internal requests. It is connected to the network.
- processing for external requests such as processing for storing image data from the modality device via the first network and processing for requesting image data from the view II, and processing for each request via the second network. Since internal processing such as mutual maintenance of groups can be divided and processed independently, it is possible to improve the stability and security of the system without reducing the throughput for external requests.
- the third characteristic configuration is the same as the first or second characteristic described above, as described in claim 3 of the same column.
- the DICOM gateway is load-balanced by the load balancer in units of one association.
- the load of the DICOM gateway is distributed as a unit from the establishment to the end of the association by the DIC OM protocol.
- the fourth characteristic configuration is, as described in claim 4 of the same column, in addition to any one of the first to third characteristic configurations described above, wherein the DICOM gateway is an image from the modality device.
- the received image information is divided into attribute information and image data, and the divided image data is compressed into a plurality of compressed images having different compression rates by a predetermined lossless compression algorithm and transferred to the control unit. And transmitting the attribute information to the image database server together with the storage address of the image data returned from the control unit.
- the image data is compressed into a plurality of compressed images having different compression rates by a predetermined lossless compression algorithm, so that the capacity of the image data transmitted through the network can be varied according to the required quality. Moreover, since the data is losslessly compressed, the quality of the data after the decompression processing is not reduced.
- the address where such image data is stored is stored as table data in the image database server along with the attribute information so as to be linkable with the image data.
- the DICOM gateway responds to the image providing request from the modality device by the DICOM gateway.
- the attribute information and the storage address are obtained from the image database server based on the key information, and a compressed image having a predetermined compression ratio is obtained from the storage unit based on the storage address, and the compressed image is decompressed. It is to process and return to the modality device along with the attribute information.
- the image database server may be configured to store data transmitted through the first network.
- the second network An update processing means for updating a database of another image database server via a network is provided.
- the image database server group is composed of a plurality of image database servers, and the load is balanced by the load balancers. Therefore, the database managed by itself, that is, the table data consisting of the attribute information and the storage address of the image data updated by the DICOM gateway described above always matches the contents with other image database servers. Must be managed as follows. Thus, by performing the update processing via the second network by the update processing means, it is possible to always ensure redundancy.
- the image database server further includes a port for updating data with respect to the first network. And a data search port, and a recovery processing means for closing the data update port during recovery processing of a database of another image database server via the second network.
- the data search port can be opened to respond to the image data read request.
- control unit may be configured to control the storage unit via the second network at a predetermined time.
- An operation status check means for executing an operation status check on the unit and storing the result in an operation status table of the image database server, and an update history of the operation status table data by another control unit
- a failure diagnosis means for performing a failure diagnosis of the other control unit is provided.
- the failure status of the storage unit or the drive in the unit can be grasped, and the latest status is stored as table data in the image database server, so that the effective storage destination of the image data can be reliably determined.
- the update history stored in the table data also makes it possible to determine whether or not other storage units are operating normally, and can detect and recover failures between control units without providing another failure detection algorithm. Can be done quickly.
- the ninth characteristic configuration is the same as the first to eighth characteristic configurations, as described in claim 9 in the same column, and the control unit is configured to make the storage unit redundant storage control. The point is to do.
- the present invention it is possible to access a device using the DICOM protocol at a high speed irrespective of an increase in the image data, and it is possible to control the image data in a reliable manner. It has become possible to provide a highly reliable image database system.
- the image database system consists of a basic frame (basic minimum tower) and a plurality of extension frames (extension towers).
- the basic frame includes a storage unit group including four storage units 1 for storing medical image data, two control units 2 for managing each storage unit 1, and two control unit groups. Attribute information including key information associated with medical image data stored in storage unit 1 is stored, and two images that relay medical image data to / from externally connected view 11
- the medical image data is relayed by the DICOM protocol between the image database server group including the database server 3 and the plurality of modality devices 10 externally connected to the image database server 3.
- a DICOM gateway group consisting of two DICOM gateways 4 connected to each other via networks 5 and 6, and load them for each group based on header information of requests via the network. It comprises two load balancers 7 for distributed control and a power supply unit 8 and a display switch 9.
- the number of each unit or server is merely an example, and it is sufficient if there are more or less units.
- the expansion frame includes a power supply unit, a plurality of storage units and switches, and is configured to be expandable so that a large amount of image data can be stored.
- the storage unit 1, the control unit 2, the image database server 3, and the DIC OM gateway 4 are connected via a first switch 5 that processes a job related to an external request from the view # 11 or the modality device 10. They are interconnected by a first network N1 and a second network N2 via a second switch 6 for processing jobs relating to internal requests.
- the networks Nl and N2 are OSI reference standard models, the physical layer and the data link layer of the network are 1000BASE-T Ethernet (registered trademark), the transport layer and the network layer are composed of TCP / IP, and the session layer These upper layers are configured to operate with the DICOM protocol, which is an imaging standard in the medical field, or other local upper protocols.
- the two load balancers 7 are connected by a local communication line (RS232-C), and one usually operates. For example, if there is no difference between the performances of the components of each group, a round robin method, If there is a difference, load-balancing control is performed by the weighted round-robin method and the response time algorithm so that the load on each component is equalized. When a failure is detected via the local communication line, a backup load balancer is used. It is configured to work.
- the local communication line a communication line based on another communication standard other than the one using RS232-C can be adopted, and further, through the first or second network described above. Local communication may be used.
- the modality device 10 is assigned to a group composed of two DICOM gateways 4.
- An image storage request is transmitted using the virtual IP address (VIP) according to the DICOM protocol, and association is started.
- the load balancer 7 selects the DIC OM gateway 4 that operates normally and has the minimum load, intercepts the packet having the virtual IP address as the destination address, and rewrites the packet with the real IP address of the selected DICOM gateway 4.
- the image storage request is received by the selected DICOM gateway 4.
- communication is established by the reverse operation.
- the load of the DICOM gateway 4 is distributed by the load balancer 7 for each association.
- the DICOM gateway 4 that has received the request converts the received image information into an examination example UID (consisting of a prefix code of a vendor, a product unique number, a serial number, etc.), a patient Name, patient ID, accession number, examination date, examination time, attribute information including the patient's birth date and image information, and divide the image data into a predetermined lossless compression algorithm (PNG (Portable Network Graphics), the compression force may be different, depending on the compression rate (here, the original image of 512 x 512 pixels, 1/4 image of 256 x 256 pixels, 128 images) The ability to generate and store 4 types of images: 1/16 x 128 pixels and 1/64 x 64 pixels used as thumbnails. The compression process is not limited to this.) To control unit 2 Forward.
- UID consisting of a prefix code of a vendor, a product unique number, a serial number, etc.
- a patient Name patient ID
- accession number accession number
- examination date examination date
- examination time attribute information
- the control unit 2 receives the transferred image data, stores the image data by an algorithm described later, and returns the storage address to the DICOM gateway 4.
- the DICOM gateway 4 transfers the attribute information to the image database server 3 together with the storage address of the image data returned from the control unit 2, and instructs data update processing.
- the control unit 2 and the image database server 3 involved in the above-described operation are communicated via the first network N 1 and are load-balanced by the port balancer 7, similarly to the DICOM gateway 4. .
- Each operation described below is basically a load that is distributed by the load balancer 7 in the same manner as described above. The operation of the load balancer will not be described hereafter.
- the DICOM gateway 4 receives the image providing request from the modality device 10.
- the attribute information and the storage address are obtained from the image database server 3 based on any key information of the attribute information for specifying the request image, and the storage unit is stored based on the storage address.
- a compressed image that has been losslessly compressed is obtained from 1 and the compressed image is decompressed and returned to the modality device 10 along with the attribute information using the DICOM protocol.
- the view 11 accesses the storage unit 1 based on the received storage address to obtain desired image data.
- the view II is DICOM view II
- an arbitrary upper-level protocol is used if the local protocol by TCPZIP is supported, although the DICOM protocol that operates via the DICOM gateway 4 described above is not used. it can.
- control unit 2 When the power supply is turned on, the control unit 2 sends the storage units 1 to the storage units 1 in order without passing through the load balancer 7 (external access to the control unit 2 is load-balanced by the load balancer 7).
- Operating status inspection means for executing the operating status inspection via the second network N2 and updating and storing the result in the operating status table of the image database server 3; Failure diagnosis means for performing failure diagnosis of the other control unit based on the update history of the table data is provided.
- the operation status inspection means mounts the storage units in frame units and sequentially with respect to the storage unit 1 that is mounted on the frame and includes several hard disks. Inquire about the status, that is, the force of removal of the unit, the mounting status of whether it is mounted, the remaining disk capacity of each drive if it is mounted, the total remaining capacity of the unit, and ask each drive In response to this, an arbitrary file is loaded and read, a disk failure of each drive is investigated, and the result is updated and stored in the operation status table shown in FIG. Although not explicitly shown in FIG. 13, by adding a frame ID to upper data of the storage unit ID, It is configured to be manageable on a frame basis.
- the control unit 2 determines the data storage destination from the storage unit that is normally operated and identified based on the operation status table.
- a redundant storage means for selecting and storing several minutes is provided. More specifically, the redundancy storage means checks the remaining disk capacity for each drive based on the operation status table, and selects and stores drives having a large remaining disk capacity in different storage units by the number of redundancy.
- the number of redundancy is set to two. Therefore, the same data always exists in different storage units 1 in the system (here, the redundancy number may be set to 2 or more, needless to say.).
- the remaining disk capacity of each storage unit is checked, two storage units 1 having a larger remaining disk capacity are selected, and the remaining disk capacity is selected from the selected storage units 1.
- a larger drive may be selected to store data.
- the data storage address is returned to the source of the storage request.
- the above-mentioned image data storage request is returned to the DICOM gateway 4 and stored in the database server 3 by the DICOM gateway 4 together with or as the attribute information of the image data.
- the redundant storage means selects a plurality of storage units 1 having a remaining capacity equal to or greater than a predetermined capacity as candidates based on the operation status table, and converts the plurality of storage units 1 into random numbers generated by the random number generating means.
- the configuration may be such that two target storage units 1 are selected based on this. For example, a number of storage units greater than the number of redundant units are selected as candidates, random numbers from 1 to 9 are generated in order by random number generation means and assigned to each candidate storage unit, and the generated random numbers are This can be realized by selecting storage units for the number of redundancy from the largest value. In this case, the load can be prevented from being concentrated on the newly added storage unit.
- the redundant storage means executes the redundant storage process on the storage units mounted on different frames based on the operation status table by any one of the methods described above. It may be configured as follows. In this case, the locations where the frames are installed and the buildings are different, so that the effects from disasters such as fires, earthquakes, and floods can be reduced. The sound can be kept low.
- the redundancy storage means checks the remaining disk capacity based on the operation status table, it is necessary to search for a storage capacity larger than the maximum capacity assumed for the stored image data. Conversely, if the remaining capacity is smaller than this value, data indicating that the drive is full is stored in the remaining capacity data in the operation status table, and all drives in storage unit 1 are full. In some cases, by configuring the storage unit 1 so as to be excluded from the selection targets, the time for investigating the remaining disk capacity can be reduced.
- control unit 2 when there is a storage unit 1 or a drive determined to be abnormal by the operation status detecting means, the control unit 2 further restores the data of the storage unit 1 or the drive.
- the failure diagnosis means of the control unit 2 accesses the operation status table regularly or irregularly, and based on the update history of the operation status table data by other control units 2, determines a predetermined time in the past from the time of access. If there is no update history made within this time, it is determined that the other control unit is out of order, and if a spare control unit is installed, one spare control unit is started. .
- one of the two operating control units activates the operation status detection means, and the other control unit activates the failure diagnosis means. It may be configured so that.
- a flag indicating the completion of the operation of the failure diagnosis means by the other control unit and the operation time data are configured to be recorded in the operation status table, and the control unit checks the flag and the operation time data. By doing so, the failure of the other control unit can be detected.
- control unit 2 may be integrally formed on the same substrate as the storage unit 1.
- two storage units can be set to be active, and the spare control unit can be switched to active when one of the failures is found by the failure diagnosis means.
- the image database server 3 updates its own database in response to the data update processing performed via the first network N1, and updates the database of another image database server 3 via the second network N2. Update processing means for updating is provided.
- the image database server 3 has an update port and a search port for the load balancer 7, and normally opens both ports. Further, the update processing means of one image database server 3 (DB1 in the figure) manages the last operation time of the update processing means of the other image database server 3 (DB2 in the figure), and The last update date and time are written and managed in all records in the table.
- the update processing means sends the storage request of the attribute information of the image data and the storage address of the image data from the DICOM gateway 4 via the load balancer 7 and the control unit 2.
- a data update request such as a request to store an operation status table from the server (step 1 in Fig. 8)
- it updates its own database (step 2 in Fig. 8).
- the database of the other image database server 3 is updated via the network 2 (step 3 in FIG. 8).
- an acknowledgment for the request is returned (step 4 in Fig. 8).
- the image database server has a port for updating data and a port for retrieving data with respect to the first network N1, and performs restoration processing for the database of another image database server via the second network N2.
- the port for updating data is closed Recovery processing means is provided.
- both the update port and the search port are closed, and the load balancer 7 requests only one image database server 3 for processing.
- the load balancer 7 requests only one image database server 3 for processing.
- the update process of its own database is performed and an acknowledgment is returned.
- one image database server 3 performs a normal operation, and both ports of the other image database server 3 are closed.
- the other image database server 3 that recovers from the failure obtains the last update date and time it has updated from one image database server 3 (step 1 in FIG. 11).
- record the recovery start time step 2 in Fig. 11
- a record of the update date and time after the first step is obtained from one of the image database servers 3 and its own database is updated (step 3 in FIG. 11).
- the recovery start time recorded in step 2 is used as the last update date and time of the database (step 4 in Fig.
- n is on the order of a few seconds. If the time is less than n seconds, a request is made to one of the image database servers 3 for recovery work (step 5 in FIG. 11). On the other hand, one image database server 3 closes the update port (step 6 in FIG. 11) and updates the database of the other image database server 3 after the last update date and time (see FIG. 11). After the update process is completed, the update port is opened (step 8 in FIG. 11), and an end notification is sent to the other image database server 3. The other image database server 3 opens both ports and returns to normal operation (steps 9 and 10 in Fig. 11). In the above description, both the update port and the search port are separately configured. However, the update port and the search port may be configured as the same port.
- the terminal such as the power S, VIEW, etc. that described the system that operates with the DICOM protocol which is the imaging diagnostic standard in the medical field or other low-level protocols in the medical field supports WEB. It is also possible to configure so that In this case, for example, a WEB server group including a plurality of WEB servers is provided in the above-described basic frame, and is configured to operate under the management of the load balancer 7.
- any or all of the storage unit, control unit, image database server 3, and DICOM gateway can be hot-swapped in units, so that maintenance can be performed while maintaining the operating state of the system. Become like
- control unit provided with the operation status detection means for detecting the operation status of the storage unit has been described.
- the control unit may be provided with a load balancer as a network device, an image processing device, or the like.
- Operation status detection means for a server group such as a database server and a DICOM gateway may be further provided.
- the control unit sequentially accesses the load balancer and each server group via the second network N2, performs an operation status check of them, and stores the result in the operation status table of the image database server. It is configured to update and store.
- Load balancer Each server monitors failures that occur during transmission / reception of data to or from any other server via the first network N1, and stores their history in its own operation status data storage area.
- the operation status inspection means for the server group such as the load balancer, the image database server, and the DICOM gateway is not limited to those built in the control unit, but may be built in any server such as the image database server and DICOM gateway. It is possible.
- the system is provided with a monitor display means for displaying these operation status data, and is configured to be display-controlled by the image database server or the control unit, so that the administrator can grasp the operation status of the system. And appropriate maintenance can be performed. Further, for example, a mail server can be constructed in the load balancer, and the operation status data stored in the database server can be mailed to the administrator. In this case, the contents are sent to the administrator when the system operation status changes, such as when a failure occurs and the start and completion of the recovery process accompanying it. This will greatly improve the management efficiency of the system by the administrator.
- FIG. 1 is a configuration diagram of an image database system according to the present invention.
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Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2005511330A JP3910997B2 (ja) | 2003-07-02 | 2004-06-25 | 画像データベースシステム |
EP04746472A EP1643370A4 (en) | 2003-07-02 | 2004-06-25 | IMAGE DATABASE SYSTEM |
US11/109,830 US7716277B2 (en) | 2003-07-02 | 2005-04-20 | Image database system |
Applications Claiming Priority (2)
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JP2003270403 | 2003-07-02 | ||
JP2003-270403 | 2003-07-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/109,830 Continuation US7716277B2 (en) | 2003-07-02 | 2005-04-20 | Image database system |
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WO2005003977A1 true WO2005003977A1 (ja) | 2005-01-13 |
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PCT/JP2004/009003 WO2005003977A1 (ja) | 2003-07-02 | 2004-06-25 | 画像データベースシステム |
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EP (1) | EP1643370A4 (ja) |
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WO2007105444A1 (ja) * | 2006-03-07 | 2007-09-20 | Konica Minolta Medical & Graphic, Inc. | 医用画像管理システム |
JP2008036353A (ja) * | 2006-08-10 | 2008-02-21 | Toshiba Corp | 医用画像保管装置 |
JP2008073448A (ja) * | 2006-09-25 | 2008-04-03 | Toshiba Corp | 医用システム及び医用装置 |
JP2011034588A (ja) * | 2010-11-01 | 2011-02-17 | Toshiba Corp | 画像管理システム |
JP2014219882A (ja) * | 2013-05-09 | 2014-11-20 | 株式会社東芝 | 医用画像保管装置 |
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Also Published As
Publication number | Publication date |
---|---|
EP1643370A4 (en) | 2009-04-01 |
JPWO2005003977A1 (ja) | 2006-08-17 |
US20050244082A1 (en) | 2005-11-03 |
JP3910997B2 (ja) | 2007-04-25 |
EP1643370A1 (en) | 2006-04-05 |
US7716277B2 (en) | 2010-05-11 |
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