影像归档与存储系统中影像数据的长期保存

The long-term preservation of image data on PACS

本文围绕在线、近线和离线存储设备讨论影像数据的长期保存方法 ,在线存储满足当前病人影像高的传输速度和大容量共享 ,近线存储满足出院病人影像的保存和再利用 ,离线存储是对近线存储的补充 ,满足异地备份和恢复 ;同时 ,还对影像数据的存储策略、恢复方法进行了阐述。

In this paper,based on the on-line,near-line and off-line storage equipments,the method of long-term storing the medical image data is discussed.On-line storage meets the high-speed transmission and large data share of current patient images.Near-line storage is used for preservation and reuse of out patient images.Off-line storage is a supplement for near-line storage to backup and restore of image data in other site.At one time,the image data storage policy and recovering method is gived.