Reduced B0/B1+ sensitivity in velocity‐selective inversion arterial spin labeling using adiabatic refocusing pulses

• Published in: Magnetic resonance in medicine Vol. 92; no. 5; pp. 2091 - 2100
• Main Authors: Bolar, Divya S., Barnes, Ryan A., Chen, Conan, Han, Fei, Pfeuffer, Josef, Liu, Thomas T., Wong, Eric C.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.11.2024
• Subjects: Accuracy; Adiabatic; Adiabatic flow; arterial spin labeling; ASL; Coefficient of variation; dual module; Fourier transforms; Functional magnetic resonance imaging; Heterogeneity; Image quality; Inhomogeneity; Labeling; Labels; Perfusion; Robust control; Sensitivity; Spin labeling; Velocity; velocity‐selective arterial spin labeling; velocity‐selective inversion; VSASL

Purpose To mitigate the B0/B1+ sensitivity of velocity‐selective inversion (VSI) pulse trains for velocity‐selective arterial spin labeling (VSASL) by implementing adiabatic refocusing. This approach aims to achieve artifact‐free VSI‐based perfusion imaging through single‐pair label‐control subtract...