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Numerical Modeling of MR Imaging of the Human Head

Numerical Modeling of MR Imaging of the Human Head. James C. Lin, Electrical and Computer Engineering and Bioengineering Primary Grant Support: Magnetic Health Science Foundation.

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Numerical Modeling of MR Imaging of the Human Head

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  1. Numerical Modeling of MR Imaging of the Human Head James C. Lin, Electrical and Computer Engineering and Bioengineering Primary Grant Support: Magnetic Health Science Foundation To analyze the physiological response of radiofrequency (RF) power deposition during magnetic resonance imaging (MRI) with head-specific volume coils. FDTD methods are used to calculate RF power deposition and temperature elevation in MRI of the human head within volume coils from 64–400 MHz at different power levels both with and without consideration of temperature- induced changes in rates of metabolism, perspiration, radiation, and perfusion. • At the highest power levels currently allowed in MRI for head volume coils, there is little effect from the physiological response. • To assess the possibility that at higher power levels or in different types of coils (such as extremity or whole-body coils) the physiological response may have more significant effects.

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