Yoshitaka Bito1, Koji Hirata1,
Toshihiko Ebisu2, Yuko Kawai3, Yosuke Otake1,
Satoshi Hirata1, Toru Shirai1, Yoshihisa Soutome1,
Hisaaki Ochi1, Masahiro Umeda3, Toshihiro Higuchi4,
Chuzo Tanaka4
1Central Research Laboratory, Hitachi,
Ltd., Kokubunji-shi, Tokyo, Japan; 2Neurosurgery, Nantan General
Hospital, Nantan-shi, Kyoto, Japan; 3Medical Informatics, Meiji
University of Integrative Medicine, Nantan-shi, Kyoto, Japan; 4Neurosurgery,
Meiji University of Integrative Medicine, Nantan-shi, Kyoto, Japan
A
water suppression (WS) technique for diffusion-weighted line-scan echo-planar
spectroscopic imaging (DW-LSEPSI) is presented. DW-LSEPSI uses a single
chemical shift selective (CHESS) pulse for WS at each acquisition of a line
suitable for a short acquisition time and to reduce a water signal using a
steady state effect. The signal attenuation of the water signal is
numerically analyzed and demonstrated by applying this technique to phantoms
and a rat brain in vivo.
Keywords