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Abstract #2149

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

Jia Guo1, Eric C. Wong1

1University of California San Diego, La Jolla, CA, United States

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.