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Abstract #1208

Non-Contrast-Enhanced Renal Angiography in One Heartbeat

Hattie Zhi Chen Dong1, Shreyas S. Vasanawala2, Dwight G. Nishimura1

1Electrical Engineering, Stanford University, Stanford, CA, United States; 2Radiology, Stanford University, Stanford, CA, United States

Multiple inversion recovery (MIR) preparation combined with alternating TR balanced SSFP is a promising technique for rapid non-contrast-enhanced renal angiography. MIR MRA achieves a high level of background suppression while allowing for flexible selection of inflow times. In this work, we explore practical factors to improve image quality, and demonstrate scans at various orientations and increasing levels of detail. Each image was acquired in one heartbeat, which is highly advantageous for respiratory artifact mitigation and real-time interactive assessment.