FSI simulation of CSF hydrodynamic changes in a large population of non-communicating hydrocephalus patients during treatment process with regard to their clinical symptoms - Fig 6

<p>(a) and (b) show correlation between maximum CSF pressure and the ventricles volume in 13 normal subjects and 11 patients (before shunting), respectively. (c) shows maximum pressure-ventricles volume-time (P-V-t) diagram in the aqueduct of Sylvius and behind optic nerve sheath of patients No.1, 2 and 3 after shunting. This diagram has three views: maximum pressure-time (P-t), ventricles volume-time (V-t) and maximum pressure-ventricles volume (P-V). P-t and V-t views of this diagram clearly show the manner of reduction of volume and pressure during time in patients No. 1–3. (d) shows intracranial compliance of patients No. 1–3 during healing process. The units of pressure and volume are Pascal and millilitre, respectively. AS: aqueduct of Sylvius; BONS: behind optic nerve sheath; NCH: non-communicating hydrocephalus; CSF: cerebrospinal fluid.