Cem Murat Deniz1, 2, Leeor Alon, 23, Xing Yang3, Gene Young Cho1, 2, Christopher Michael Collins, 23, Daniel K. Sodickson, 23, Yudong Zhu, 23
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 School of Medicine, New York, NY, United States; 3Department of Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, NY, United States
Even though simulations have been commonly used for safety evaluation of antenna structures, often complex antenna-body structures are difficult to simulate and the simulations do not align with the experimental results. In this work, we propose an alternative method of monitoring RF safety by experimentally measuring the temperature change using MR thermometry. We show good agreement between optical temperature measurements and MR thermometry and simulation studies. Heating pattern, |E| and SAR fields from a simulated simple dipole antenna matches well with experimental results both in pattern and in magnitude. Strength of this method is in its simplicity, accuracy and speed.