Evaluation of RF Heating due to Various Implants during MR Procedures
نویسندگان
چکیده
منابع مشابه
Radiofrequency energy-induced heating during MR procedures: a review.
During an MR procedure, most of the transmitted RF power is transformed into heat within the patient's tissue as a result of resistive losses. Not surprisingly, the primary bioeffects associated with the RF radiation used for MR procedures are directly related to the thermogenic qualities of this electromagnetic field. This review article discusses the characteristics of RF energy-induced heati...
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RF heating due to conductive wires during MRI depends on the phase distribution of the transmit field.
In many studies concerning wire heating during MR imaging, a "resonant wire length" that maximizes RF heating is determined. This may lead to the nonintuitive conclusion that adding more wire, so as to avoid this resonant length, will actually improve heating safety. Through a theoretical analysis using the method of moments, we show that this behavior depends on the phase distribution of the R...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medical Sciences
سال: 2011
ISSN: 1880-2206,1347-3182
DOI: 10.2463/mrms.10.11