Abstract
Recently, image fusion technique is used on medical field which is obtained various different modalities. Also the technique is performed as a useful application as the visual screening. The improvement and efficiency of the diagnostic function come to be attempted by overlapping the two images, the involved area where the interpretation of radiogram was difficult from the one modality in the other modality. To make a fusion image, registration is important task. However, because many registration techniques need manual operation, increased burden to the doctors and the difference of result becomes a problem. In this paper, we propose a method for image fusion on head CT and MR image to assist surgical plan for the Cyber Knife. Our registration technique is performed two main steps; 1) global registration by using center of gravity, and outline information of image, 2) final registration by use of the mutual information which is selected some VOIs. In this paper, we report some experimental results with registration accuracy and computational processing time.
