Abstract: A medical information system has a terminal device of a hospital information system for retrieving and displaying an examination list and a reading report and an image display terminal device for displaying an image. Both terminal devices are arranged to mutually transfer the identification information of an examination to enable their displayed contents to be changed interlockingly. Therefore, medical information, such as charts, medical images, reading reports and results of examinations, required to perform a diagnosis is formed into electronic data and electronic data is displayed on a screen to provide information for a doctor.

Abstract: A medical support system intended to centrally manage medical information generated by more than one hospital and permit medical information interchange among hospitals with easy operations. The system includes a plurality of storage units for storing medical information about patients, an entry unit for entering identification information for identifying a specific patient, an identifying unit for identifying storage units that store medical information about the specific patient on the basis of the identification information from the entry unit, and an access unit for accessing the storage units identified by the identifying unit by storage units identification information to read the medical information about the specific patient.

Abstract: A medical information processing system for supporting diagnostic interpretation, featuring a data storage unit for storing an interpretation image and interpretation reference images for which a doctor will refer to interpret the interpretation image. A data loading unit loads the interpretation reference images from the data storage unit into a workstation unit according to a predetermined priority order. The data loading unit loads the images into a workstation which is selected from the workstation unit according to workstation vs. interpretation examination modality information. A diagnostic information creation unit creates diagnostic information relative to the image by inputting the doctor's findings or computerizing with a computer unit. Positions of abnormalities and degrees of the abnormalities are determined, and positions in association with the images are calculated.

Abstract: An imaging system in a hospital includes plural diagnostic units each having a picture filing memory in which medical picture data of patients are stored. The memories are located in the diagnostic units at dispersed locations in the hospital. Each diagnostic unit includes a retrieval unit by which image data can be retrieved from the respective memory. A network interconnects the diagnostic unit and permits transmission of image data among the diagnostic units.

Abstract: An image compression apparatus has a separation section for performing processing for dividing image data into a plurality of data blocks, an orthogonal transformer for orthogonal-transforming each data block, a bit allocation table for storing data representing the number of bits allocated in accordance with the frequency component of the orthogonal-transformed data output from the orthogonal transformer, an arithmetic operation circuit for calculating an amplitude probability density function of an identical frequency component of the orthogonal-transformed image data for each pixel, and calculating a quantization limit band causing a mean square error to be minimized in acordance with the calculating amplitude probability density function and the bit-number data from the bit allocation table, and a band limit table for storing the quantization limit band data.

Abstract: A picture archiving communication system for medical application includes least one work station, a data base, including a low-speed recording medium and a high-speed recording medium, for storing image data collected by a diagnosing apparatus unit. When a transfer command for desired image data is sent from the work station to the data base, the image data from the image data registered in the data base is read-out to the work station. A migration processing unit copies image data stored in the low-speed recording medium to the high-speed recording medium in the data base. A file management unit is provided, including a management table for storing a migration index number corresponding to at least one image data in the high-speed recording medium, which was subjected to the migration processing, and including a record indicating whether the image data stored in the high-speed recording medium was accessed after the migration processing.

Abstract: In a medical image data managing system, a directory managing unit is employed so as to manage directory data on overall medical image data. The medical image data managing system comprises: a plurality of modality units for producing medical image data in accordance with sorts of the modality unit a plurality of database units for storing at least the medical image data produced from the modality units: workstation units for issuing a demand to fetch desirable medical image data from the database units and for displaying the fetched medical image data; and, a directory managing unit for storing directory information about to which database units the desirable medical image data has been stored and for outputting the directory information upon receipt of the demand issued from the workstation means.

Abstract: An auto changer apparatus for an optical disk, having a large number of optical disks which are contained in a shelf, and one of which is selected and picked up by an arm mounted at a disk installment unit, and is installed in a disk drive unit, includes a defect control memory and a directory memory. The defect control memory stores defect control data of each optical disk as a table. Upon an initial operation. initial defect control data is transferred from a control block of the optical disk to the defect control memory, and an initial defect control table is made. If a defective block is found in a write mode or a read-after-write mode, data associated with the defective block is stored in the defect control memory, and the defect control table is updated. The directory memory stores a correspondence table of a logical address of the auto changer apparatus and a physical address of each disk.

Abstract: When medical image data is acquired by imaging equipment of modality, modality outputs an image data transfer request command to a data base, via a network. After a memory area of a TMD (temporal magnetic disc) of the data base is secured, the acquired image data is transferred from modality to the TMD. When an image data retrieval request command is input from a WS (work station) of a console to data base through network, retrieval of the image data stored in the data base is performed, the retrieved data is transferred to the WS, and is displayed. The operator requests data base to read out image data by retrieval result. Data base is searched memory address of the requested image data. When the requested image data is stored in OD (optical disc), image data stored in OD is transferred to TMD. Image data stored in TMD is transferred to WS, and is displayed.

Abstract: A network interface in a local area network system for transferring a message from a first terminal to a second terminal at high speed comprises a receiving section for receiving the message from the first terminal, a first sending section for sending the received message to a first network on the basis of a first control instruction, a second sending section for sending the received message to a second network on the basis of a second control instruction, and a network control section for detecting a message size of the received message and for outputting the first and second control instruction to the first and second sending section in accordance with the message size.

Abstract: An image processing apparatus includes a memory for storing image data, a loss-compression circuit for loss-compressing the image data, an expansion circuit for expanding the loss-compressed image data, and a difference circuit for calculating a difference between the original image data of the image memory and the expanded image data of the expansion circuit. A lossless compression circuit lossless-compresses the difference image data obtained by the difference circuit. A multiplexer multiplexes the loss-compressed image data output from the loss-compression circuit, with the lossless-compressed difference data obtained by the lossless-compression circuit.

Abstract: A picture archiving and communication system comprises an image data output section, a terminal station, and a plurality of data bases. The image data output section produces diagnostic image data in accordance with examination requests made at a plurality of diagnosis departments, and outputs the diagnostic image data together with appendant data (which includes destination data indicating where the image data should be sent). From the terminal station are entered specific data used for specifying the image data produced by the image data output section, and destination data representing where the image data should be sent. The data bases are located at various diagnosis departments. On the basis of the data entered from the terminal station, a register list is prepared at each of the data bases, and the appendant data supplied from the image data output section is collated with the data recorded in the register list.

Abstract: A database system is provided in a network system capable of exchanging medical data, including at least image data and key data associated therewith, and can store and retrieve the medical data via the network system. The database system has first and second data file devices and a file management device. The first data file device stores image data supplied via the network system in a first rewritable storage. The second data file device stores image data transferred from the first storage in a non-rewritable second storage. The file management device has an index data storage for storing the key data, supplied via the network system, and memory addresses of image data, which correspond to the key data, on the first and second storages in correspondence with each other, and manages storing and reading of the image data in and from the first and second data file devices.

Abstract: A computerized tomography apparatus comprises a source rotating about an object for directing fan-shaped beams of radiation towards the object, a detector for detecting the fan-shaped beams of radiation through the object and producing projection data representative of radiation intensity integrated along the beams at successive different views, and estimating circuitry for providing interpolated projection data between adjacent views in addition to projection data from the detector by using a pipeline process to increase the number of projection data.

Abstract: A data processing device applied to a computed tomography system which examines a living body utilizing radiation of X-rays is disclosed. The X-rays which have penetrated the living body are converted into electric signals in a detecting section. The electric signals are acquired and converted from an analog form into a digital form in a data acquisition section, and then supplied to a matrix data-generating section included in the data processing device. By this matrix data-generating section are generated matrix data which correspond to a plurality of projection data. These matrix data are supplied to a partial sum-producing section. The partial sums respectively corresponding to groups of the matrix data are calculated in this partial sum-producing section and then supplied to an accumulation section. In this accumulation section, the final value corresponding to the total sum of the matrix data is calculated, whereby the calculation for image reconstruction is performed.