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Abstract #0597

Prospective Motion Correction to Increase the Achievable Resolution in Brain Imaging at 7T

MAGNA25Peter Schulze1, Daniel Stucht1, K. A. Danishad1, Ilja Y. Kadashevich1, Michael Herbst2, Cris Lovell-Smith2, Julian Maclaren2, Robb T. Barrows3, Todd P. Kusik3, Brian S. Armstrong3, Tom Prieto4, Thomas Ernst5, Maxim Zaitsev2, Oliver Speck1

1Department of Biomedical Magnetic Resonance, Otto-von-Guericke University, Magdeburg, Germany; 2Department of Radiology, University Medical Center, Freiburg, Germany; 3Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, Milwaukee, United States; 4Department of Neurology, Medical College of Wisconsin, Milwaukee, United States; 5Department of Medicine, University of Hawaii, Honolulu, United States

Ultra high resolution MRI suffers from long acquisition times, which increase the risk of involuntary subject motion. In this study we present ultra high resolution (0.25 mm in-plane) in vivo MR brain images acquired at 7T using real-time prospective motion correction. A comparison between conventional and prospectively-corrected MRI shows a clear improvement in image quality. To our knowledge it is the first demonstration of such improvements at ultra high spatial resolutions in co-operative and trained subjects. The technique is well explored and ready to be established as a standard feature of new MRI systems.

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