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Abstract #4085

Free Breathing Abdominal DCEMRI with High Spatio-Temporal Resolution

Manojkumar Saranathan1, Dan W. Rettmann2, Brian Andrew Hargreaves1, Andreas Loening1, Anja C.S Brau3, KyungHyun Sung1, Shreyas S. Vasanawala1

1Dept. of Radiology, Stanford University, Stanford, CA, United States; 2Applied Science Laboratory, GE Healthcare, Rochester, MN, United States; 3GE Healthcare, Menlo Park, CA, United States

Dynamic contrast-enhanced abdominal imaging is commonly performed in a series of breathholds following injection of Gadolinium contrast. In many patients, breathholding is not possible or unreliable, leading to ghosting and blurring. Free-breathing radial VIBE or navigator gating can address this problem, but with a temporal resolution penalty. Here, we used DISCO a navigator-gated 3D SPGR sequence with a combination of parallel imaging, viewsharing and pseudo-random variable density k-space sampling. This enables free-breathing dynamic contrast enhanced abdominal imaging at high temporal and spatial resolution.