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Abstract #3433

High-Resolution in vivo MR Brain Imaging at 7T Using an Embedded Optical Tracking System for Prospective Motion-Correction

Jessica Schulz1, Thomas Siegert1, Enrico Reimer1, Maxim Zaitsev2, Julian Maclaren2, Michael Herbst2, Robert Turner1

1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; 2University Medical Center Freiburg, Freiburg, Germany

We have designed an embedded optical tracking system that provides real-time motion information for prospective head motion correction for MRI at 7T. This system enables the acquisition of motion-corrected very high resolution in vivo MR images of the human brain (0.4 mm isotropic 3D FLASH, 0.5 mm isotropic 2D TSE). Uncorrected and corrected 3D FLASH images were acquired in four volunteers. Quantitative analysis demonstrated that the image quality was reliably improved by the motion correction.