Pulmonary Blood Flow Measurement Using Velocity-Selective Arterial Spin Labeling at 3.0T

Jia Guo¹, Eric C. Wong¹

In this study, we demonstrated that it is feasible to use Velocity-Selective ASL (VSASL) to measure pulmonary blood flow (PBF) at 3.0 T with bSSFP and cardiac gating. Comparing with FAIR, the intravascular signal of VSASL is minimized by choosing a proper cutoff velocity (2cm/s in this study) without affecting the quantification, therefore providing a less biased thus more accurate estimate of PBF. We expect VSASL to benefit from the longer T2/T2* at a lower field (1.5 T) on measurement of PBF.