The Study Based On The Function Of Media Storage Of DICOM Standard

To realize successful communication ,sharing and management without films of imaging data and related information between heterogeneous medical imaging units and systems and promote the information exchange between different operation platforms, implemented the application programs which could realize the function of the DICOM media storage on the platform of Microsoft Visual C++ 6.0 with the language of C++, on the condition that there is the expansion of hospital information and medical imaging materials and the gradual prevalence of computer network in the hospital. Through the test, the application programs realize the function of creating, and updating DICOM file set and the management of DICOM files by resorting to the DICOMDIR file.Adopted the object oriented analyzing method to construct the object model which showed the system's data structure, the dynamic model which described the well-formed change alignment of objects and the process of the shift of states and the function model which described the function of the data process with the data flow diagram based on the DICOM data format, encircling the DICOM file format, file services, media storage service classes and the basic directory object definition.Outlined the system's structure and organization combining the data structure, alternating actions between the user and the system and the system's data process function. Adopted the object oriented design method to construct the object model of the solution space around the problem domain sub-system and the alternating sub-system of the user and the computer.The design of the programs realized the construction and package of core classes and basic operations such as read, write and change DICOM files based on the DICOM file services. Through the function test, the application programs realized the construction of the DICOMDIR and the file set with the right data structure, correctly showed tree structure of the DICOMDIR and also showed the image's pixel information, related information of the patient, the study and the series.