The image information system ( PACS) can receive and display different images from various devices, such as CT, DR, B-ultrasound and color Doppler ultrasound, etc., and has medical image acquisition, archiving, viewing, processing, printing and various management functions. Make data preservation more complete and sharing stronger. Doctors can conveniently browse, copy and burn image data, support in-hospital consultation and remote consultation, and finally realize an integrated platform that seamlessly connects with other systems and equipment in the hospital.
System features and advantages:
Acquire image data in DICOM and non-DICOM formats;
Collect the original DICOM data of the image by means of communication;
Support static and dynamic image data acquisition;
Support multiple acquisition methods such as perspective acquisition and exposure acquisition;
Support conversion of image data from non-DICOM imaging devices into DICOM standard data;
Support 3D image processing functions; 3D reconstruction, maximum/minimum density projection, 3D volume reconstruction, 3D surface reconstruction, virtual endoscope, curved surface reconstruction, vessel reconstruction and analysis;
Support film printing management; can set film printing typesetting, electronic film management.
PACS business process:
(1) Registration and input of inspection information: the registration workstation at the front desk can input the basic information of the patient and the application information of the inspection, and can also automatically enter the patient information by searching the HIS system (if there is HIS and integrated with PACS/RIS), and perform triage registration for the patient , Follow-up registration, application form scanning, application form printing, triage arrangement, etc.
(2) WorkList service: Once the patient information is entered, other workstations can directly call it from the main database of the PACS system without manual entry; medical imaging equipment with WorkList service can directly extract the list of relevant patient basic information from the server, without WorkList Functional imaging equipment inputs patient information through the medical imaging equipment operating console or extracts registration information through the triage console.
(3) Image acquisition: For standard DICOM equipment, the acquisition workstation can automatically (or manually) forward the image to the PACS main server after the inspection is completed or during the inspection process.
(4) Non-DICOM conversion: For non-DICOM devices, the collection workstation can use the MiVideoDICOM gateway to receive the registration information, and then collect images during the inspection process, and the collected images are automatically (or manually forwarded by the equipment operator) forwarded to the PACS main server .
(5) Image review: After the patient completes the image examination in the examination room, the doctor can review, browse and process the image through the network of the film reading room, and can print out the film and deliver it to the patient. When the image needs to be accessed, the PACS system automatically calls it from the disk array of the main server or the front-end server connected to it according to the path set in the background. In the image display interface, physicians can generally perform image post-processing such as measuring length, angle, area, etc. In mainstream PACS, in addition to measurement functions, zoom, move, mirror, invert, rotate, filter, sharpen, pseudo Color, playback, window width and level adjustment and other image post-processing functions.
(6) Report editing: After the patient completes the image examination, the professional staff will review the image quality and conduct quality analysis. After completing the quality review and control of the image, the diagnosing doctor can edit the image diagnosis report, and according to the authority of the diagnosing doctor, conduct the initial diagnosis report and report review work respectively. In the process of writing reports, you can use templates of commonly used diagnostic words to reduce the workload of doctors' keyboard input. During the review process of the diagnostic report, the modification traces can be retained for the modified content, and information such as clinical diagnosis, detailed medical history, and historical diagnosis can be obtained, and the report can be stored as a typical case for other similar diagnoses, and for the entire department to learn and improve. The audited report is output by the printer and submitted after being signed by the physician. At the same time, the diagnostic report is uploaded to the main server for storage and backup. Printed reports cannot be modified, but can be read-only for reference.
The main function:
With the development of information technology and the transformation of hospital operating mechanism, hospital information system has become an essential infrastructure and supporting environment for modern hospitals. In order to actively promote the development of information network infrastructure and accelerate the construction and management of hospital informationization, the Ministry of Health has formulated the "Basic Functional Specifications of Hospital Information System". Among them, the following specifications are set for the functions of the medical imaging information system.
(1) Image processing
1 . Data receiving function: receive and acquire DICOM3.0 and non-DICOM3.0 format image data of imaging devices, and support conversion of images from non-DICOM imaging devices into DICOM3.0 standard data.
2 . Image processing function: Customize the relevant information of the displayed image, such as name, age, device model and other parameters. Provide functions such as scaling, moving, mirroring, inverting, rotating, filtering, sharpening, false color, playback, and window width and level adjustment.
3 . Measurement function: Provide measurement of ROI value, length, angle, area and other data; as well as labeling and annotation functions.
4 . Save function: support JPG, BMP and other formats to store, and convert to DIDICOM3.0 format.
5 . Management function: support the transmission of images between devices, and provide simultaneous access to images and reports of patients in different periods and different imaging devices. Support DICOM3.0 printout, support massive data storage, migration management.
6 . Telemedicine function: supports remote sending and receiving of image data.
7 . System parameter setting function: support user-defined window width and window level value, magnification ratio of magnifying glass and other parameters.
(2) Report management
1 . Appointment registration function.
2 . Triage function: basic information of patients, examination equipment, examination site, examination method, price and charge.
3 . Diagnosis report function: Generate inspection reports and support second-level doctor review. Support typical case management.
4 . Template function; users can define templates conveniently and flexibly to improve report generation speed.
5 . Inquiry function: support name, video number and other forms of combined query.
6 . Statistical function: It can count the user's workload, outpatient visits, films and cost information.
(3) Operation requirements
1 . Share patient information in the hospital information system.
2 . Network operation: data and information are accurate, reliable and fast.
3 . Security management: set access permissions to ensure data security.
4 . Establish a reliable storage system and backup plan to achieve long-term preservation of patient information.
5 . The reporting system supports general medical terminology at home and abroad.
