Using U‐Nets to Predict the Effects of Head Motion on Simulated Specific Absorption Rate for Ultra‐High Field Magnetic Resonance Imaging With Parallel Transmission

Key Points

• The research aims to develop a method for calculating specific absorption rate (SAR) while accounting for head motion during ultra-high field MRI scans.
• Utilized U-net algorithms for SAR prediction
• Implemented a position-aware approach for SAR calculation
• Conducted simulations of UHF-MRI scenarios with varying head positions
• Smaller safety margins were achieved compared to traditional methods
• Higher performance was enabled in UHF-MRI scanning
• Safety was maintained for subjects who cannot remain still