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Abstract #4430

Non-Contrast Dynamic MRA Using TrueFISP Based Spin Tagging with Alternating Radiofrequency (TrueSTAR) in Cerebral Arteriovenous Malformation

Sumei Wang1, Lirong Yan2, Yan Zhuo2, Ronald L. Wolf1, Michael F. Stiefel1, Jing An3, Elias R. Melhem1, Jiongjiong Wang1

1Radiology, University of Pennsylvania, Philadelphia, PA, United States; 2State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; 3Siemens Mindit Magnetic Resonance Ltd., Shenzhen, China

Five patients with arteriovenous malformations (AVMs) were evaluated using a novel dynamic MRA (dMRA) technique termed TrueFISP based Spin Tagging with Alternating Radiofrequency (TrueSTAR). The results are compatible with time-of-flight (TOF) MRA results. Dynamic MRA demonstrated the blood flow pattern through feeding arteries, nidus and draining veins with high temporal resolution (<100ms), and may provide complementary information in the clinical evaluation of AVMs.