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Abstract #0284

in vivo Radio-Frequency Heating Did Not Change Due to the Power Deposition from Similar 3T and 7T Head Coils

Devashish Shrivastava1, Lynn Utecht1, Jinfeng Tian1, Rachana Visaria2, John Hughes1, University of Minnesota University of Minnesota Vaughan1

1University of Minnesota, Minneapolis, MN, United States; 2MR Safe Devices, Burnsville, MN, United States

Radio-frequency (RF) heating was measured using fluoroptic probes in the scalp; 5 mm, 10 mm, 15 mm, 20 mm and 25 mm in the brain; and rectum in eight anesthetized swine due to a continuous wave power deposition from similar 3T and 7T TEM head coils for three hours (N=4 for each coil). No significant difference was found between the heating produced due to the 3T and 7T coils in the brain and rectum.