Due to the difficulty of communication and information share between Medical information systems, the Object Management Group issued the software specification of CORBAMed, defining the interfaces of services, and specifying the software architecture of Medical Information System. This paper attempts to use CORBA in Picture Archiving and Communication System (PACS), provides a system model of CORBA solution of PACS, and analyzes the view layers structure of system, finally we discuss the related services of CORBAMed.
Computer Communication Networks ; Diagnostic Imaging ; Humans ; Information Systems ; organization & administration ; Medical Records Systems, Computerized ; Radiology Information Systems ; Software

The variation of tissue elasticity or stiffness is related with diseases of tissue, so the characterization of tissue elasticity is important to diagnosis. There are four methods for ultrasonic characterization of tissue elasticity: imaging inspection techniques, vibration velocity measurements, quasi-static strain measurements and parametric methods. The theories of the method of vibration velocity measurements and the method of quasi-static strain measurements and their new developments are discussed in this paper. The applications and the problems of this technique are discussed also.
Biomechanical Phenomena ; Connective Tissue ; diagnostic imaging ; Elasticity ; Elasticity Imaging Techniques ; methods ; Humans ; Image Processing, Computer-Assisted ; methods ; Stress, Mechanical

The Digital Imaging and Communications in Medicine (DICOM) Standard was developed by National Electrical Manufacturers Association (NEMA) and the American College of Radiology (ACR) for medical image archiving and communication. The Standard is widely used in medicine now. But it does not define image semantic content sufficiently, so there is a difficulty in the implementation based on semantic content. In this article are discussed the semantic hierarchy structure in medical image and the method to describe the image content used in the DICOM Standard. We point out the limitations of DICOM in image semantic content description, and then set forth a way to extend the semantic content description by using DICOM private attributes.
Computer Communication Networks ; standards ; Humans ; Image Processing, Computer-Assisted ; standards ; Programming Languages ; Radiology Information Systems ; standards ; Semantics