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Abstract #3766

Congenital Heart Disease: Role of Time-Resolved MR Angiography

kambiz nael1, Michael Fenchel1, Stefan G. Ruehm1, J Paul Finn1

1Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States

Advances in fast imaging tools such as parallel acquisition and sparse k-space sampling methods such as time-resolved angiography with interleaved stochastic trajectories (TWIST), have the potential to improve the performance of time-resolved MR angiography (TR-MRA). In this study we evaluated the clinical usefulness of a 3D CE-MRA protocol that encompasses both high spatial and high temporal resolution acquisition in evaluation of patients with congenital heart disease (CHD). Our objective is to investigate whether TR-MRA can unravel complex functional vascular anatomy in patients with CHD and to assess the incremental diagnostic value of TR-MRA over conventional MRA in this population.