PURPOSE:To facilitate image retrieval by taking out an image on a modality side from the image display device side through a repeater. CONSTITUTION:In case of image retrieval from an image display device (VC) 3 of each department, respective VCs 3a-3c retrieve images from image preserving devices (DB) 2a-2c through independent networks 9a-9c independently of one another. A repeater 40 is used to retrieve even unexamined images on the side of a modality 1. Thus, an examining doctor easily retrieves images, and the access time is shortened to improve the image transfer efficiency.
