Non-metal Slice Image Overlay Display System Used Inside the Open Type MRI

摘要

MRI is now utilized not only for diagnosis but also for intraoperative surgical treatment. In the MRI environment, the surgeon imagines the position of target region by observing pre-acquired images and patient body during the operation, therefore the spatial position of the diseased part depends on the surgeon's knowledge and experience. Thus information from the MRI image is not fully utilized. In order to solve this problem, we developed the prototypes of slice image overlay system for open-type MRI, which comprises the MRI compatible display device, image communication, registration system and visualization software, which is adopted to clinical 0.2T Open MRI. Phantom experiments were performed and the TRE of the overlay device was less than 1.0mm at the center of the display.