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Magnetic resonance imaging apparatus and specific absorption rate calculation method
Magnetic resonance imaging apparatus and specific absorption rate calculation method
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机译:磁共振成像装置和比吸收率计算方法
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摘要
According to one embodiment, a MRI apparatus includes a transmitter coil generating a RF magnetic field, a receiver coil, and processing circuitry. The receiver coil receives a MR signal generated by an object placed in an imaging space to which the RF magnetic field is applied. The processing circuitry calculates a specific absorption rate by using a first correction coefficient which indicates a characteristic that is inherent to the transmitter coil and relates to the generation of the RF magnetic field, and a second correction coefficient which indicates a characteristic that the receiver coil has on the RF magnetic field by electromagnetic coupling between the receiver coil and the RF magnetic field during a generation period of the RF magnetic field.
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