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Abstract #2744

A Landmark-Free MRI Scanner Concept

Ileana Hancu1, Keith Park1, Robert Darrow1

1GE Global Research Center, Niskayuna, NY, United States

A paradigm is presented here, in which the definition of the region of interest center in an MRI scan is automated. This process relies on a probing RF coil, tuned high. A passive RF coil, also tuned high, marks the center of the receive array. As the patient approaches the scan position, and the probing and marker coils come in close proximity, the signal received by the probing coil increases, with the maximum signal obtained when the two coils overlap. We show that precision better than 1cm can be achieved in finding the Rx coil marker using this approach.

Keywords

accuracy accurate always anatomy apart array arrays automate axis better breast captured cause chain characterized close coil coils column come concept connected curve curves decrease demon designed detection difficult distance embedded engineers entails exam exams existing expected extent fails failure feasible field form free function global hand handbook hardware head hill human impact impacts indicates inexpensive initial integral landmark landmarked landmarking least loaded loading localization locate located magnet majority make manual mark marker markers marking mated mechanical minim minimal modes monitoring network note occurs offset offsets oils operation optical overlap park passes passive patient perturbed phantom precision probing proximity radio receive received record relies rely relying requires respect rise scanner separated side spectral splitting step steps symmetrical table taken technologist torso towards tuned tuning typically underneath verify wrong