Andreas Stadlbauer1, Wilma van der Riet2, Erich Salomonowitz1
1MR Physics Group, Department of Radiology, Landesklinikum St. Poelten, St. Poelten, Austria; 2European MRI Consultancy (EMRIC), Strasbourg, France
To study the CSF-flow dynamics in nine patients with enlarged ventricular system and nine volunteers using time-resolved 3D MR velocity mapping. Particle-path-lines were calculated to visualize CSF-flow patterns. From six patients with suspected hydrocephalus internus, four showed a hypomotile and two showed a hypermotile CSF-flow. From two patients with suspected normal pressure hydrocephalus, one showed hypomotile and the other hypermotile CSF-flow. One patient who had undergone a ventriculostomy 10 yrs ago showed normal CSF-flow dynamics. These preliminary findings indicated changes in CSF-flow dynamics in patients with enlarged ventricular system, but further and more detailed studies are necessary.