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AJNR - American Journal of Neuroradiology

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Phase-Contrast MR Imaging of the Cervical CSF and Spinal Cord: Volumetric Motion Analysis in Patients with Chiari I Malformation

Erich Hofmann^,a, Monika Warmuth-Metz^a, Martin Bendszus^a and Lászlò Solymosi^a

^a From the Department of Neuroradiology, University of Würzburg, Germany.

View larger version (143K): [in a new window]   FIG. 1. Sagittal reference image with axial section perpendicular to the spinal canal at the level of C2.FIG. 2. Phase-contrast images (partitions 1 through 16) corresponding to figure 1

View larger version (40K): [in a new window]   FIG. 3. Volumetric motion (mean values) of the upper cervical intradural space as a whole. There are no significant differences between patients and control subjects

View larger version (40K): [in a new window]   FIG. 4. Flow rates (mean values) of anterior cervical CSF motion. Significant differences are seen between patients and control subjects at 0%, 44%, and 69% of the cardiac cycle

View larger version (39K): [in a new window]   FIG. 5. Flow rates (mean values) of posterior cervical CSF motion. There are significant differences between patients and control subjects at 75% of the cardiac cycle

View larger version (38K): [in a new window]   FIG. 6. Volumetric motion (mean values) of the upper cervical cord. Significant differences are seen between patients and control subjects at 69% and 81% of the cardiac cycle