MRIscanner‐independent specific absorption rate measurements using diffusion coefficients

Objective The purpose of this study was to measure specific absorption rate ( SAR ) during MRI scanning using a human torso phantom through quantification of diffusion coefficients independently of those reported by the scanner software for five 1.5 and 3 T clinical MRI systems from different vendors. Methods A quadrature body coil transmitted the RF power and a body array coil received the signals. With diffusion tensor imaging, SAR values for...