Keywords: Arterial Spin Labelling, Arterial spin labelling
Motivation: Improvement of the intraoperative pseudo-continuous arterial spin labeling images for resection control in brain tumor surgery at 3T.
Goal(s): Evaluate the effect of shortening RF pulse duration and gap on the labeling efficiency of PCASL and to test it in the intraoperative setting.
Approach: A study in 10 healthy volunteers was done approximating the off-resonance effects at the labeling plane. 2 PCASL sequences were tested in 2 patients.
Results: A PCASL sequence robust to off-resonance effects is obtained by shortening RF duration and gap.
Impact: Shortening the RF duration and gap improves the PCASL labeling efficiency at high B0 off-resonance values at the labeling plane.
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