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Abstract #0314

An Anatomically Realistic Temperature Phantom of the Head for Validation of SAR Calculations

MAGNA25Nadine N. Graedel1, Jonathan R. Polimeni1, 2, Bastien Guerin1, Borjan Gagoski3, Lawrence L. Wald1, 4

1A. A. Martinos Center for Biomedical Imaging, Dept. of Radiology, MGH, Charlestown, MA, United States; 2Harvard Medical School, Boston, MA, United States; 3Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, United States; 4Harvard-MIT Division of Health Sciences and Technology, MA, Cambridge, United States

We constructed a human head phantom which allows 3D temperature mapping using the temperature sensitive contrast agent TmDOTMA. The phantom contains multiple tissue compartments that match those of the human head both in terms of their geometry and their electrical properties.

Keywords

accuracy accurate adding agar agent agreement agrees allow allowing amount anatomically applied array arrays biomedical bone brain brightening built calculations calibration cause chemical chloride coefficient coil comm compartment compartments complex complicate computed computer conductivity confirmed consists constructed contains continuously contrast cooling crucial curve demand depend dependent dept dielectric direct division doped electrical electrically electromagnetic elements engineering error excited experiment eyes fiber fields fitting frequency full gels geometry good harmful head health heating holes human humans implemented improve in vivo induced insertion institute isotropic local manually mapping maps matching matrix measured medical medium mode model modeling muscle optic parallel pattern performance phantom pixel plastic playing polyethylene prediction principal printing probe probes profiles propagation properties published radiology realistic related reproduction require resolution salt sample scanner school sciences served service several shape simulation simulations since solenoid sphere step strongly subject subsequent superposition synthesized technologies technology temperature temperatures thulium tissue transmit types typical uniform validation variations yielded