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Abstract #4742

SNR Benefits of Surface Coil Lift-Off at High Magnetic Field Strength

Qi Duan1, Graham Wiggins1, Bei Zhang1, Riccardo Lattanzi1, Bernd Stoeckel2, Daniel K. Sodickson1

1Radiology, Center for Biomedical Imaging, NYU School of Medicine, New York, NY, USA; 2Siemens Medical Solutions USA Inc., New York, NY, USA

This work demonstrates that SNR gains deep in an object can be achieved with a single loop coil by lifting the coil off the object surface. Experimental SNR measurements on a 3T Siemens Tim system were compared with full-wave electrodynamic simulations incorporating a realistic noise model. Close agreement between experiment and simulation was observed. Lift-off-related SNR benefits had a notably asymmetric distribution, with the greatest gains occurring on the far side of the object, opposite to the position of the coil.