Thermal Effects Associated with RF Exposures in Diagnostic MRI: Overview of Existing and Emerging Concepts of Protection
Table 2
Measured core temperature rise (measured at the tympanic membrane) in male volunteers as function of RF exposure at 1.5T (unpublished results, courtesy: dr Rob Kleihorst). The nominal target whole-body SAR was 4 W/kg (except for volunteer 11, where the target was 3 W/kg). Reported SAR levels are established by dosimetry, based on measured power distribution in the RF transmit chains.