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Abstract #0144

Measurement of Microscopic Head Motion During Brain Imaging

Julian Maclaren1, Brian S. Armstrong2, Robb T. Barrows2, K. A. Danishad3, Thomas Ernst4, Colin L. Foster2, Kazim Gumus4, Michael Herbst1, Ilja Y. Kadashevich3, Todd P. Kusik2, Qiaotian Li2, Cris Lovell-Smith1, Tom Prieto5, Peter Schulze3, Oliver Speck3, Daniel Stucht3, Maxim Zaitsev1

1Dept. of Radiology, University Medical Center, Freiburg, Germany; 2Electrical Engineering, University of Wisconsin-Milwaukee; 3Biomedical Magnetic Resonance, Otto-von-Guericke University, Magdeburg; 4Dept. of Medicine, University of Hawaii; 5Dept. of Neurology, Medical College of Wisconsin

This work describes the design, construction and testing of an MR-compatible in-bore camera capable of measuring head motion with a precision of around 10 micrometres. The system is used to quantify cardiac and breathing-related head motion in normal subjects during simultaneous MR imaging.