DICOM医学图像扩展模型的研究

医学图像存档和通讯系统PACS(Picture Archivingand Communication System)促进了医学图像的共享，但是该系统只能提供基于关键字的医学图像检索，不能进行基于语义内容检索，本研究在现有图像处理、分析和理解技术的基础上对医学图像的内容信息进行了划分，并对PACS系统的医学成像和通讯标准DICOM(Digital Imaging and Communicationin Medicine)信息模型进行了扩充，增加有关图像内容的信息，提出了DICOM信息模型的扩展模型。通过该模型来组织医学信息的存储和检索可以满足基于关键词和基于图像语义内容检索的需要，最后在该模型的框架下实现了超声心动图像基于形状特征的检索。

The Study of Extended Dicom Medical Image Model

Due to Picture Archiving and Communication Systems,Doctors can share medical images between hospitals and institutes,These systems provide tools to retrieve medical images according to images' context information,however,people are not able to retrieve images by their content through thess systems.This paper attempted to extend the primitive Digital Imaging and Communication in Medicine information model by adding image content model,based on image engineering technique such as image proceesing,image analysis and image understanding.Using the extended model we could store medical images and provide both Keywort\|based and Content\|based retrieval of medical images.Under the architecture of this model.A retrieval instance of echocardiogram was achieved.