Fig. 5From: Simultaneous biportal endoscopic management of pineal region tumors in patients with obstructive hydrocephalus: technical notesA Postoperative CT brain showing the EVD tip (white arrow) passing through foramen of monro. B A flow-sensitive MRI showing patent ventriculostomy ostium (white arrow) black signal in MRI with CSF flowmetry due to turbulance of CSF across the ventriculostomy siteBack to article page