The Design And Implementation Of PACS Based On DICOM Standard And IHE Architecture

As the needs of the informatization development of foreign and domestic medical institutions, with comprehensive application of digital medical imaging technology of DR, CT, MRI and PET-CT in clinic, the data of medical images increases to TB (Terabyte, TB) levels. To solve the medical image acquisition, display, storage, transport and management problems, Picture Archiving and Communication System (PACS) is used gradually in clinical, but, in the running process, there have been some problems, such as some manufacturers do not strictly follow the DICOM standard in the design of PACS, leading to the decline of image quality. The design of image storage is not closely integrated with clinical work, making storage and printing solutions not reasonable. The works flow of the department of Radiology is not smooth. The users put forward a higher request for the design of PACS, which need to be further standardized.Digital Imaging and Communication in Medicine (DICOM) is an international standard of medical digital imaging and communication. It defines the unified norm for the medical image and other information applying on medical equipments. DICOM is widely conformed by PACS. But in the design and implementation of PACS, to solve the problem of working together and interactivity, it is needed to describe clearly the requirements of users based on Integrating the Healthcare Enterprise (IHE), to design PACS solutions with optimization process. IHE advocates to use established standards, such as DICOM and HL7, which can communicate and be implemented better and easier, improving the efficiency of using the medical information further.According to the present domestic situation of non-standard design of PACS, this thesis discusses the details from system design to system implementation, which includes general principle, design idea, design method, system structure, the scheme of construction and implementation. And the thesis mainly researches the user demand, analyzes the DCIOM standards, especially DCIOM image format, along with IHE principle, and Radiology Integration Profiles. According to the database standard design steps and DCIOM image information model etc., the thesis realized PACS image database, designed the overall structure of FULL-PACS and the three stage of storage solution with virtual film technology, realized the mini-PACS of X-ray department, and optimized the work flow. The system integrates computer network technology, image processing technology, mass storage and database managing technology. Openness and extensibility are main features of the system as it is designed to conform IHE architecture thought and related international standards. The results show that the paper has made beneficial study which tried to achieve a high efficient and practical Mini-PACS of x-ray department. The paper has certain significance for the design and realization of PACS, standardized application of various standards, and optimization workflow based on IHE. In addition, the storage solution of virtual film technology is more suitable for clinical work. In a word, this system has certain significance for hospital diagnosis level and the efficiency.