Fig. 4From: Extracranial versus intracranial hydro-hemodynamics during aging: a PC-MRI pilot cross-sectional studyRelationship between cervical and ventricular CSF. Correlation between pulsating cerebrospinal fluid (CSF) stroke volume during one cardiac cycle (in milliliter per cardiac cycle [ml/cc]). The cervical (spinal) CSF stroke volume (SV) is positively correlated to the aqueductal CSF SV and significant, in both healthy young volunteers (a) and healthy elderly volunteers (b)Back to article page