1Radiological Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan, 2Brain & Mind Research Center, Nagoya University, Nagoya, Japan
objective is to develop a phantom that can evaluate the image distortion along
the body axis objectively, and elucidate the relationship between the occurrence
and geometrical position of image distortion in MRA. As a result, the phantom that we have developed has made it
possible to evaluate image distortion objectively over a wide range of the
trunk. We made clear that when separated from the center of the magnetic
field in vertical or horizontal directions, image distortion became larger with
the increase in distance.