Imaging of arteriovenous malformation following stereotactic radiosurgery.

Background: Stereotactic radiosurgery allows for a high dose of focused radiation to be delivered to a small lesion such as an arteriovenous malformation (AVM). The clinical change and brain response over time to this localized high-dose radiation can be quite striking.

Objective: The objective of this study to describe and analyse the imaging changes following radiotherapy for AVMs.

Interactive intraoperative localization during the resection of intraventricular lesions.

Mass lesions located in the ventricular system can be surgically challenging. These tumors are often slow growing and reach considerable size before they are diagnosed. These lesions commonly cause multiple obstructions to the circulation of cerebrospinal fluid with subsequent hydrocephalus.