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Abstract #2085

Dual-venc Dual-echo 2D Cine Phase-contrast MRI

Jihye Jang1,2, Yansong Zhao1, Jouke Smink3, Andrew J Powell2, and Mehdi H Moghari2
1Philips Healthcare, Gainesville, FL, United States, 2Department of Pediatrics, Harvard Medical School, Boston, MA, United States, 3Philips Healthcare, Best, Netherlands

Phase-contrast (PC) cine MRI is used for the clinical assessment of blood flow in various cardiovascular diseases. One of the challenges of PC is a trade-off between velocity aliasing artifacts and velocity-to-noise ratio (VNR). To improve VNR without velocity aliasing, we implemented a novel dual-venc dual-echo 2D cine PC sequence where both high and low-venc data are acquired within a single TR and velocity is measured using data from both venc images. In 10 patients, the dual-venc PC sequence demonstrated similar blood flow measurements with significantly better VNR compared to the standard single-venc PC sequence.

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