Prospective Motion Correction with Stereoscopic Optical Tracking at 7T

INTRODUCTION Artifacts caused by motion during the image acquisition are a well known problem at 1.5T and 3T. In high field systems such as 7T the available signal to noise ratio leads to potentially higher resolution than in systems with lower field. Unfortunately higher resolution requires longer acquisition times without patient motion. Therefore an increased need for motion correction exists. Prospective motion correction [1] for 3T systems addresses motion during the measurement and promises to improve image quality in high resolution acquisitions. In this study an implementation of prospective motion correction on a 7T MR scanner is presented and the correction of a moving phantom and of a test person are described for different image resolutions.