Multi-stational Whole-body MR Imaging with Geometric and Intensity Distortion Correction
Taniguchi Y, Nagao H, Abe T, Takahashi T, Ochi H
Central Research Laboratory, Hitachi, Ltd.
We have developed a method for obtaining whole body images by smoothly joining multi-stational (MS) images. Both geometric and intensity distortions are corrected using image intensity values with our method, not hardware distortion information. The optical flow method is used to build image warp maps from which the geometric distortions are successfully corrected. More than 300 sets of MS images of human bodies, obtained by various pulse sequences, were tested to evaluate the proposed method, and as a result we were able to obtain good results from all of the images.