Real-Time Golden Angle Radial iSSFP for Interventional MRI
Samantha Mikaiel1,2, Thomas Boyd Martin1,2, Kyung Sung1,2, and Holden H Wu1,2
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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