Brain fiber tracking with clinically feasible diffusion-tensor MR imaging: initial experience.
Two technical challenges must be overcome before brain fiber tracking with diffusion-tensor magnetic resonance (MR) imaging can be applied to clinical practice: Imaging time must be shortened, and image distortion must be minimized. Single-shot echo-planar MR imaging with parallel imaging technique enabled both objectives to be accomplished. Twenty-three consecutive patients with brain tumors underwent MR imaging with a 1.5-T whole-body MR system. Fiber tracts on the lesion side in the brain had varying degrees of displacement or disruption as a result of the tumor. Tract disruption resulted from direct tumor involvement, compression on the tract, and vasogenic edema surrounding the tumor. This diffusion-tensor MR imaging method with the parallel imaging technique allows clinically feasible brain fiber tracking.
Yamada
Kei
K
Department of Radiology, Kyoto Prefectural University of Medicine, Kajii-cyo, Kawaramachi Hirokoji Sagaru, Kamigyo-ku, Kyoto City, Kyoto 602-8566, Japan. kyamada@koto.kpu-m.ac.jp
Kizu
Osamu
O
Mori
Susumu
S
Ito
Hirotoshi
H
Nakamura
Hisao
H
Yuen
Sachiko
S
Kubota
Takao
T
Tanaka
Osamu
O
Akada
Wataru
W
Sasajima
Hiroyasu
H
Mineura
Katsuyoshi
K
Nishimura
Tsunehiko
T
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000473:pathology*; D001932:Brain Neoplasms / Q000473:pathology*; D002675:Child, Preschool; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009434:Neural Pathways / Q000473:pathology*