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Abstract #1457

Toward B1 estimation using coil locators

Parnian Zarghamravanbakhsh 1 , Christopher Ellenor 1 , John M Pauly 1 , and Greig Scott 1

1 Electrical engineering, Stanford university, Stanford, CA, United States

We propose a method to predict B1 filed using coil geometry and location in imaging coordinate system without doing B1 mapping. Most of B1 mapping are done without any assumption about the coil geometry and location. Coils location are found by placing markers on coil conductors, then by acquiring three sets of 1D projections to localize the markers ,coil plane can be detected. Having known the coil location and geometry, B1 field distribution can be obtained by computational analysis .To validate the method, we compare simulated with measured results. Field prediction can be used in auto-calibration and RF pulse design.

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