Deblurring in 3D GRASE ASL by Using Variable Flip Angles and K-Space Demodulation

Keywords

accurate achieve acquisition affects alone although amplitude apart applied approaches arrows arterial assessed assuming benefits better blurring bottom brain capability caused cerebral collect column combining considerable consistent constant contrast control correct correction coverage delay demodulating demodulation dependency dimensional directly duration echoes either employed enhance especially expected fast flow full function furthermore gradient gray greatly half healthy identical in vivo increasing inferior inflow institute institutes interface introduce introduced investigate kaiser known labeling largest last leading limitation long loss maintain maintained manipulate manipulating matrix measure middle modulate modulated modulation narrower noise numerical occurs outer overall partial partition partitions peak perfusion possibly problematic propeller proposed pseudo quantification ramp rapid readily readout recently reduce reduced reducing refocusing relatively required residual respectively robustness scanner severe sharing short shot simulated simulation simulations since smallest space spatial specified spin spread steady still studies subject subjects suffers suitable superior throughout transfer unless variable variations vary varying view volume whole width window