Fig. 1.
Effects of subarachnoid hemorrhage (SAH) cerebrospinal fluid (CSF) samples on ventricular enlargement. (A) Examples of T2-weighted MRI scans of nude mice before and 24 hours after intraventricular injection of CSF from a control patient and an aneurysmal SAH patient (patient 1). (B) Quantification of the degree of ventricular enlargement (post- vs. pre-surgery) 24 hours after intraventricular injection of CSF from a control and five SAH patients. The CSF was sampled <48 hours after SAH. Note the marked enlargement with the CSF from two patients (1 and 3).