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Abstract #3294

Dynamic 3D T1 TFE Images of the Orbit with High Spatiotemporal Resolution at 3T

Marco Piccirelli1, 2, Chris Bockisch3, Roger Luechinger4

1SNS Lab, Dept. ECON, University Zurich, Zurich, Switzerland; 2Inst for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland; 3Departments of Neurology, Ophthalmology, and Otolaryngology, University Hospital Zurich, Zurich, Switzerland; 4Inst for Biomedical Engineering, University & ETH Zurich, Zurich, Switzerland

Dynamic MRI of the orbit during eye movement with high spatiotemporal resolution is possible using a segmented acquisition. Nevertheless, the excessively long resulting scantime prohibits clinical use. Therefore, methods are needed to decrease the examination duration, such as, e.g., multichannel receive array that will enable simultaneous scanning of both orbits and kt SENSE image acquisition. Simultaneous eye tracking enable the control of the reproducibility of the eye motion, and may be used for re-measurement of k-space profiles with wrong gaze direction. We present here methodological improvements that enable dynamic imaging of the orbit with high spatiotemporal resolution at 3T.