A comprehensive research of information system to integrate diagnostic imaging by multimedia

利用数字图像通信医学(DICOM)协议、图像数据压缩和高密度存储介质，将包括运动图像和彩色图像在内的各种医学图像有效地存储在图像存档和通信系统(PACS)中。对于胸部CT、头部CT/MRI和肝脏CT/MRI的诊断，10：1的JPEG有损压缩是可以接受的，小波方法的图像压缩可以接受比JPEG方法更高的压缩比，而不会显著降低图像质量。在CT和MRI的图像质量方面，可以使用彩色晶体显示器和彩色CRT来显示类似于胶片的图像。采用DICOM协议和万维网(WWW)开发了同时包含图像和字符数据的放射学信息系统(RIS)。这些系统通过局域网连接到医院信息系统(HIS)和PACS。诸如检查命令之类的字符数据通过局域网被直接传输到诊断医疗设备。图像和诊断报告同样通过局域网发送。在医院中建立一个完全集成HIS/RIS/PACS和诊断模式的信息半球是可能的。

All kinds of medical images including kinematic and color images were found to efficiently store in a picture archiving and communication system(PACS) utilizing DICOM(digital image communication medicine) protocol, image data compression and high density storage media. JPEG lossy compression at 10:1 ratio is acceptable for the diagnosis of chest CT, head CT/MRI and liver CT/MRI.Image compression by Wavelet method can be accepted at higher compression ratio than JPEG method without significant degradation of image quality. Color crystal monitor and color CRT can be used for displaying images similarly to films in terms of image quality of CT and MRI. The radiology information system(RIS) to include both images and character data have been developed by employing DICOM protocol and World Wide Web(WWW). Those are connected to the hospital information system(HIS) and PACS through a local area network(LAN). Character data such as an examination order is transferred directly to the diagnostic modality through the LAN. Images and a diagnostic report are sent through the LAN similarly. It is possible to establish an information hemisphere in a hospital completely integrating HIS/RIS/PACS and diagnostic modalities.