Abstract #0597

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

Peter 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.