Abstract #3579

Real-Time Golden Angle Radial iSSFP for Interventional MRI

Samantha Mikaiel^1,2, Thomas Boyd Martin^1,2, Kyung Sung^1,2, and Holden H Wu^1,2

¹Radiological Sciences, University of California, Los Angeles, Los Angeles, CA, United States, ²Biomedical Physics, University of California, Los Angeles, Los Angeles, CA, United States

Real-time visualization is crucial to the success of MRI-guided minimally invasive cancer interventions. In this work we combine iSSFP with a golden-angle(GA) ordered radial trajectory and non-Cartesian parallel imaging to create a new real-time MRI sequence with good tissue contrast while suppressing bSSFP banding artifacts. Phantom and volunteer data were acquired and reconstructed using a combined sliding-window SPIRiT algorithm, at different frame rates, showing the capability of the sequence to achieve real-time imaging. These advantages of GA Radial iSSFP show its potential for improving real-time MRI-guided interventions.

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