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Abstract #1535

SNR and Field Strength with Small Surface Coils

Rolf Pohmann1, Nikolai Avdievitch1, and Klaus Scheffler1,2
1Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany, 2Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany


The increase in SNR with higher field strength is one of the main drivers for ultra high field MRI. Here, the sensitivity gain is determined for phantoms in five different fields between 3 T and 14.1 T, using identical small surface coils and correcting for all scanner specific influences. A strong, more than quadratic SNR gain with increasing field strength was found, which applies to many animal studies and to measurements with weakly loading samples.

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