It is commonly believed that forming of a conductive loop in an MRI scanner is dangerous because a loop induces a large electric current by the RF excitation and causes RF burn injuries. To verify this belief, we modeled an RF burn injury case, which was caused by an ECG lead, on an electromagnetic analysis software, and simulated SAR and electric field. A large SAR that causes RF burns was confirmed with and without looping that induced small electric field not to cause RF burns. It was suggested that loop formation is not a major cause of RF heating.
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