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Abstract #0077

Improvement in T2-Weighted Imaging at 7T by Using KT-Points

Florent Eggenschwiler1, Kieran O'Brien2, Rolf Gruetter, 13, Jos P. Marques4

1EPFL, Laboratory for Functional and Metabolic Imaging, Lausanne, Vaud, Switzerland; 2University of Geneva, Department of Radiology, Geneva, Switzerland; 3Universities of Geneva and Lausanne, cole Polytechnique Fdrale de Lausanne, Lausanne, Vaud, Switzerland; 4University of Lausanne, Department of Radiology, Lausanne, Vaud, Switzerland

At high magnetic field strengths (B0 > 3T), the inhomogeneous distribution of the B1+ field causes undesirable signal and contrast variations of GM/WM across the brain. These artifacts impair the quality of T2-weigthed images at high field and may mislead any medical diagnosis that depends on these images.