Design Of A New DICOM Ultrasound Workstation And Research In Its Some Key Problems

With the development of technology in the field of computer, network and digital image processing, PACS (Picture Archiving and Communication System) developed quickly and is impacting the style of traditional medical image application. Now digital image diagnose is operating step by step instead of film-image medicine diagnose in hospital.Image format produced by various image equipment are different, so it can't implement communication, it is important to constitute a standard to cause the communication between image equipment for the more and more demands in image and information transfer. Therefore, ACR and NEMA established a commission in 1983 to constitute Digital Imaging and communication in medicine (DICOM). DICOM accelerated the development of medical digital imaging and communication. It unified the communication standard among different imaging office, provided a connection channel for PACS, RIS and HIS, and also made digital diagnosis and information query possible for medical imaging clinicians.As an important diagnose method, ultrasound diagnosing has the character of real-time, indolence, non-trauma and inexpensive. Diagnose efficiency such as in the diseases of heart, lung, blood vessel, gall bladder, eye, mammary glands and liver. Outdated ultrasound diagnose model take the actual diagnose when image sampling, no image and any other information storage after diagnose. So diagnose model can't content the request of digital medicine for its inefficient, for its functional disorder in diagnose assistant, information storage, communication and telemedicine. It is an important thing to develope a ultrasound workstation that based DICOM (Digital Imaging and Communications in Medicine) standard , can be integrated into PACS to implement long-distance consultation , simply operation and economy ,offer CBIR(Content Based Image Retrieve) function. It will exert merit of ultrasound diagnose, depress cost of medicine teaching, and advance efficiency of ultrasound diagnose. So develop of ultrasound image workstation becomes a focus in the field medicine image study today.Telemedicine is the promising direction of the informatization in hospital, it is referenced for information transferred through the long-distance area between the patients and doctors based on the techniques of computer network, communication and multimedia, to achieve the information searching, diagnoses and implement clinical project. The promotion of telemedicine in our country is important to improve the configuration of medical resource, increase the level of country health and reduce the disease expense.Here a ultrasound workstation was designed under the frame of PACS, the workstation can be seamless connected into the PACS system, It is more important that this workstation was based on C/S (Client/Server) and B/S (Browser/Server) module, so it can hold on the telemedicine. and we add the image characteristic table in the image database to hold on the CBIR. This thesis focuses on: The content about DICOM standard, on the structure of the ultrasound workstation, on the retrieval of the ultrasound workstation.