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Parameter Optimization for 7T 23Na-MRI

A. Nagel, S. Schmitter, M. Bock, E. Moser, W. Semmler and L. Schad

Proceedings 17th Scientific Meeting, International Society for Magnetic Resonance in Medicine, Honolulu,, p.2465

The purpose of this study is to provide parameters for the optimization of 23Na-MRI protocols at 7 T. Therefore, T1 and T2* relaxation times of the human brain and different phantoms were measured. SNR and image quality was investigated at three field strengths (1.5 T, 3 T, 7T). The theoretically expected approximately linear increase in SNR with field strength could be confirmed, with minor deviations that can be attributed to relaxation effects. Furthermore, it was shown that appropriate sequence designs, such as a density adapted radial sequence can reduce degradations of image quality due to B0-inhomogeneities even at 7 T.

Contact: Prof. Dr. Frank Zöllner last modified: 14.01.2019
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