Pacs ( picture archiving and communication systems ) can realize efficiencent management and share of radiographic image . it has been widely used in clinic now . the building of pacs system between hospitals can exert expert ' s ability to serve other hospitals 图象存档及传输系统( pacs )实现了临床放射图象的有效管理和共享,目前已在临床中得到了比较广泛的应用,而建立医院和医院之间pacs系统能充分发挥专家队伍的作用,为基层医院服务。