| This topic has this realm of the PACS (Picture Archive and Communication System) which has an important position in the around at the hospital information-based process, and for the sake of carrying out the purpose of"the change from DICOM to BMP"which is one of trends of PACS development,First, the whole architecture of system is designed.1. Middleware, PACS and DICOM Standard is studied, and PACS layer architecture is studied deep, and the merits and shortcomings of single-layer architecture, two-layer architecture, three-layer architecture, this topic decides to adopt three-layer architecture.2. The strategy of Windows DNA and the technique of COM+ are studied deep, and traditional three-layer architecture's problems of the bad security, slow speed and big technique difficulty etc. are resolved goodly.3. Combining the front of work, a system frame is put forward, which is"The Design of middleware on change of the medicine images". This frame provides a complete system project to carry out the purpose of the topic.Then, concrete procedures are accomplished based on the above system architecture.1. The DICOM standard is studied in detail. The method that the toolkit DCMTK which is free, professional and open in source codes is used to carry on second-time development to carry out DICOM Viewer is provided, and steps on which the software is completed based are elaborated. Being easily developed and compatible, the project avoids the complicated DICOM format problem of first floor.2. The component dealing with DICOM persistent object is installed and configured with the tool of"Component Service", and then, many problems such as transaction, concurrency and message queue are resolved, which are requested in the business layer of three-layer architecture.This topic's meaning is that it makes PACS develop from closed design and centralized design to open design and distributed design. Customers such as doctors and patients can browser DICOM images through any a computer. |
PDF Full Text Request