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Abstract #1313

Dual-venc Dual-echo (DVDE) Phase-contrast MRI for Simultaneous Measurement of Arterial and Venous Blood Flow

Jihye Jang1, Yansong Zhao1, Jouke Smink2, Andrew J Powell3, Lorna Browne4, and Mehdi H Moghari4
1Philips Healthcare, Gainsville, FL, United States, 2Philips Healthcare, Best, Netherlands, 3Boston Children’s Hospital and Harvard Medical School, Boston, MA, United States, 4Children's Hospital Colorado and University of Colorado, Aurora, CO, United States


Phase-contrast (PC) MRI enables non-invasive quantification of blood velocity and flow. The velocity encoding factor (venc) selected by the operator is chosen to maximize the velocity-to-noise ratio (VNR) while preventing aliasing artifacts. To minimize the acquisition time increase associated with an additional venc, a dual-venc dual-echo (DVDE) technique has been proposed where both venc images are acquired within a single TR as dual-echo images. Compared to the single-venc PC-MRI, DVDE allows simultaneous imaging of arterial and venous blood flow with an enhanced VNR and similar blood flow and velocity.

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