Abstract
Medical image retrieval is a core process of illness diagnosis and treatment procedure in healthcare area today. The new medical image scanner produces a large number of images with high resolution in 2D and 3D. The main concern in this paper is to clear out that medical image retrieval is one of the hot areas even after long time of its existence, because of the implementation of new technologies such as cloud. The review is based on the platform that used in the medical image retrieval, cloud, distributed system, GRID and peer-to-peer. After covering a number of researches in this area, it is pointed out that cloud computing as a platform is the direction point of researchers in medical image retrieval. Additionally, enhancing the response time of the medical image retrieval is the main issue that has been motivating researchers to provide new techniques and algorithms.