Noriyuki Tawara1,
Takahiro Ohnishi2, Katsuya Maruyama2, Vladimir Jellus3,
Naoyuki Tamura4, Hideyuki Takahashi4, Mamoru Niitsu5,
Atsuto Hoshikawa1, Kohei Nakajima1, Toru Okuwaki1,
Takashi Kawahara1
1Medical
Center, Japan Institute of Sports Sciences, Tokyo, Japan; 2Siemens
Japan, Tokyo, Japan; 3Siemens AG, Erlangen, Germany; 4Department
of Sports Science, Japan Institute of Sports Sciences, Tokyo, Japan; 5Department
of Radiology, Saitama Medical University, Saitama, Japan
MRI can evaluate muscle activity; T2 of exercised muscle is greater than that of rested muscle. However, it is necessary to improve the temporal resolution of the T2 calculation. The purpose of this study was to evaluate visualization of the trunk muscle activation induced by exercise using DESS sequence. Although the DESS sequence has a temporal resolution as high as can be acquired under single breath-holding, these images have a high spatial resolution. In this study, we presented the detectability of trunk muscle activities by DESS T2 mapping.