ABSTRACT
<p><b>OBJECTIVE</b>To discuss the scheme and implementation of workstation configuration for medical imaging information systems suitable to the practical situation in China.</p><p><b>METHODS</b>The workstations were logically divided into picture archiving and communication system (PACS) workstations and radiology information system (RIS) workstations. The former applied to three kinds of diagnostic practice: the small matrix images, large matrix images and high resolution grayscale display applications. The latter consisted many different models defined by the usage and function processes.</p><p><b>RESULTS</b>A dual-screen configuration for image interpretation workstations integrated the image-viewing and reporting procedures physically. Small matrix images as CT or MR were operated on 17 inch (1 inch = 2.54 cm) color monitors, while conventional X-ray interpretation was performed on 21 inch color monitors or portrait format grayscale 2 k by 2.5 k monitors. All other RIS workstations not involved in imaging process were set up with a common PC configuration.</p><p><b>CONCLUSION</b>Workstation schemes for medical imaging information systems should satisfy the basic requirements of medical imaging and investment budget.</p>
Subject(s)
China , Computer Communication Networks , Computer Terminals , Data Display , Equipment Design , Hospital Information Systems , Radiology Information SystemsABSTRACT
Objective Exploring the design and optimizing factors of picture archiving and communication system (PACS) network architecture. Methods Based on the PACS of shanghai first hospital to performed the measurements and tests on the requirements of network bandwidth and transmitting rate for different PACS functions and procedures respectively in static and dynamic network traffic situation, utilizing the network monitoring tools which built in workstations and provided by Windows NT. Results No obvious difference between switch equipment and HUB when measurements and tests implemented in static situation except router which slow down the rate markedly. In dynamic environment Switch is able to provide higher bandwidth utilizing than HUB and local system scope communication achieved faster transmitting rate than global system. Conclusion The primary optimizing factors of PACS network architecture design include concise network topology and disassemble tremendous global traffic to multiple distributed local scope network communication to reduce the traffic of network backbone. The most important issue is guarantee essential bandwidth for diagnosis procedure of medical imaging.
ABSTRACT
Objective To explore the management model and realizing of PACS image data flow. Methods Based on the implementing environment and management model of PACS image data flow after full digital reengineering for radiology department in Shanghai First Hospital was completed, analysis on image data flow types, procedure, and achieving pattern were conducted. Results Two kinds of image data flow management were set up for the PACS of Shanghai First Hospital, which included image archiving procedure and image forward procedure. The former was implemented with central management model while the latter was achieved with a program that functionally acted as workflow management running on the central server. Conclusion The image data flow management pattern, as a key factor for PACS, has to be designed and implemented functionally and effectively depending on the performance environment, the tasks and requirements specified to particular user.
ABSTRACT
Objective To discuss the scheme and implementing for workstation configuration of medical imaging information system which would be adapted to the practice situation of China. Methods The workstations were logically divided into PACS workstations and RIS workstations, the former applied to three kinds of diagnostic practice: the small matrix images, large matrix images, and high resolution grayscale display application, and the latter consisted of many different models which depended upon the usage and function process. Results A dual screen configuration for image diagnostic workstation integrated the image viewing and reporting procedure physically, while the small matrix images as CT or MR were operated on 17 in (1 in =2.54 cm) color monitors, the conventional X ray diagnostic procedure was implemented based on 21 in color monitors or portrait format grayscale 2 K by 2.5 K monitors. All other RIS workstations not involved in image process were set up with a common PC configuration. Conclusion The essential principle for designing a workstation scheme of medical imaging information system should satisfy the basic requirements of medical image diagnosis and fit into the available investment situation.