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Abstract #4121

Clinical Evaluation of TOF-MRA with Sparse Undersampling and Iterative Reconstruction (Sparse TOF) for Cerebral Aneurysms.

Yasutaka Fushimi1, Tomohisa Okada1,2, Akira Yamamoto1, Takayuki Yamamoto1, Aurelien Stalder3, Michaela Schmidt3, Yutaka Natsuaki3, and Kaori Togashi1

1Kyoto University Graduate School of Medicine, Kyoto, Japan, 2Human Brain Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan, 3Siemens, Erlangen, Germany

Sparse TOF has demonstrated the potential to accelerate TOF MRA. We conducted comparison study targeting patients with cerebral aneurysms to check the clinical relevance of evaluation of aneurysms on Sparse TOF 3X, 5X and TOF with parallel imaging (PI TOF). MIP images of patients with cerebral aneurysms were blindly evaluated by one neuroradiologist, and the sum of grades were compared among Sprase TOF 3X, 5X and PI-TOF 3X. Sparse TOF 3X and 5X were reconstructed with clinically acceptable time, and cerebral aneurysms were visible in both Sparse TOF 3X and 5X with equivalent quality as PI TOF.

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