Reduced specific absorption rate (SAR) pseudo-continuous arterial spin labeling
نویسندگان
چکیده
Introduction: A reduced specific absorption rate (SAR) version of pseudo-continuous arterial spin labeling (pCASL) pulse sequence (1,2) is designed and implemented. Using a simulation study, a set of pCASL pulse sequence parameters is found that allows reducing the flip angle of pCASL radio frequency (RF) pulses (and consequently SAR) without losing the inversion efficiency. The proposed set of parameters employs smaller slice selective gradients which leads to less acoustic noise as well. This makes the pulse sequence more desirable, especially for functional MRI studies.
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