Zhentao Zuo1,2, Rui Wang1,2,
Dapeng Liu1,2, Rong Xue1, Yan Zhuo1, Danny
J. J. Wang3
1State Key Laboratory of
Brain & Cognitive Science, Institute of Biophysics, Chinese Academy of
Sciences, Beijing, China, People's Republic of; 2Graduate
University, Chinese Academy of Sciences, Beijing, China, People's Republic
of; 3Neurology, UCLA, Los Angeles, CA, United States
Arterial spin labeling (ASL) at 7T is attractive due to prolonged blood T1 as well as increased SNR at ultrahigh field. In the present study, turbo-flash based pulsed and pseudo-continuous ASL sequences were performed at both 7 and 3T, with different spatial resolutions and post-labeling delays. High quality perfusion images were obtained at 7T even with the spatial resolution of 0.85 X 1.7mm2 and with post-labeling delays up to 3s. Motor cortex activation was further demonstrated which precisely located the primary motor cortex to the precentral gyrus, with the spatial resolution of 0.85 X 1.7mm2.
Keywords