Leeor Alon1,
2, Cem Murat Deniz1, 2, Gene Young Cho1,
2, Xing Yang1, Christopher Collins1, Yudong Zhu1,
2, Daniel Sodickson1, 2
1Department
of Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New
York University, New York, NY, United States; 2Sackler Institute of
Graduate Biomedical Sciences, New York University, New York, NY, United
States
Local specific absorption rate (SAR) quantification is important for ensuring safe usage of RF transmitting devices. Regulatory bodies around the world mandate RF safety testing and more than $1B is spent annually on testing. In contrast to the gold-standard measurement schemes that mechanically move a probe and measure the electric field generated by the wireless devices, this work utilizes MR thermometry to quantify power deposition from mobile phones, allowing rapid acquisitions with higher resolution than before. The results indicate that safety testing of RF emitting devices such as mobile phones can be robustly conducted using MRI.