[New diagnostic imaging for navigation surgery].
Progress in diagnostic computed tomography (CT) and magnetic resonance (MR) imaging has been remarkable. Multidetector-row CT provides thin-slice images through the upper abdomen, multiphase abdominal imaging, and 3D images of high quality including CT angiography and multiplanar reformation. The development of MR units provides diffusion-weighted images for detecting abdominal tumors, and the steady-state coherent echo method can be used for imaging of vessels without using contrast media. The 3D images provided in CT and MR imaging facilitate anatomic understanding of tumors and vessels and are useful for preoperative navigation. However, we must be careful when using 3D images for diagnosis, because the subjectivity of the 3D image creator may affect the results. Therefore the original axial images should also be referred to.
Kitamura
Takatoshi
T
First Department of internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.
Ichikawa
Tomoaki
T
Aikawa
Yoshihito
Y
Sano
Yoshitomo
Y
Enomoto
Nobuyuki
N
Araki
Tsutomu
T
D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods / Q000639:trends; D008279:Magnetic Resonance Imaging / Q000379:methods / Q000639:trends; D025321:Surgery, Computer-Assisted / Q000379:methods / Q000639:trends; D014057:Tomography, X-Ray Computed / Q000379:methods / Q000639:trends