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Abstract #3657

Deformation-ENcoding Transformer (DENT) for High Frame Rate for Phase Contrast MRI

Manuel A Morales1, Amine Amyar1, Siyeop Yoon1, Jennifer Rodriguez1, Martin S Maron2, Ethan J Rowin2, Shiro Nakamori1, Jiwon Kim3, Robert M Judd4, Jonathan W Weinsaft3, Warren J Manning1, and Reza Nezafat1
1BIDMC, Boston, MA, United States, 2Tufts Medical Center, Boston, MA, United States, 3Weill Cornell Medicine, New York, NY, United States, 4Duke University, Durham, NC, United States

Synopsis

Keywords: Flow, CardiovascularQuantification of blood flow using 2D or 4D phase-contrast (PC) MRI is routinely being used to evaluate blood flow in cardiovascular disease. However, PC has only a modest temporal resolution compared to echocardiography. We sought to develop a deformation-encoding transformer (DENT) model for cardiac frame interpolation and evaluate its potential in increasing temporal resolution. DENT was trained using a large multi-center (centers = 3), multi-vendor (vendors = 3) and multi-field strength (1.5T, 3T) cine MRI dataset (patients = 3178). The model was successfully applied to 2D/4D-PC MRI without modifications, enabling a 2-fold gain in temporal resolution.

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Keywords