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25 May 1989 Information Management For Data Retrieval In A PACS
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Data stored in a PACS archive must be organized to permit efficient retrieval. The concept of a unique data object identifier (UID) permits a fundamental partitioning of the problem into a storage system indexed by UID and a database containing descriptive elements. The database serves to map user retrieval requests, expressed in terms of clinically relevant descriptive elements, into UIDs of specific data objects. Different data organization mechanisms are employed by imaging modalities, thereby making the structure of a generic PACS database difficult. One solution may be derived by analogy from film based systems. Images and other data objects may be organized, by application of modality and site specific rules, into electronic folders. Folders, in turn may be organized into a patient master folder or user defined reference folders. Such an organization provides an easily understood user access model for information stored in PACS archives. This paper presents a PACS architecture comprising an Information Management System (IMS), and Image Storage System (ISS). Entity-Relationship diagrams are presented to define a schema for the IMS database based on the folder analogy. The folder concept and its relationship to the ACR-NEMA Standard are discussed.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fred W. Prior and Kamal H. Nabijee "Information Management For Data Retrieval In A PACS", Proc. SPIE 1093, Medical Imaging III: PACS System Design and Evaluation, (25 May 1989);


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