PT - JOURNAL ARTICLE AU - Chandran, Arun AU - Radon, Mark AU - Biswas, Shubhabrata AU - Das, Kumar AU - Puthuran, Mani AU - Nahser, Hans TI - Republished: Novel use of 4D-CTA in imaging of intranidal aneurysms in an acutely ruptured arteriovenous malformation: is this the way forward? AID - 10.1136/neurintsurg-2015-011784.rep DP - 2016 Sep 01 TA - Journal of NeuroInterventional Surgery PG - e36--e36 VI - 8 IP - 9 4099 - http://jnis.bmj.com/content/8/9/e36.short 4100 - http://jnis.bmj.com/content/8/9/e36.full SO - J NeuroIntervent Surg2016 Sep 01; 8 AB - Ruptured arteriovenous malformation (AVM) is a frequent cause of intracranial hemorrhage. The presence of associated aneurysms, especially intranidal aneurysms, is considered to increase the risk of re-hemorrhage. We present two cases where an intranidal aneurysm was demonstrated on four-dimensional CT angiography (time-resolved CT angiography) (4D-CTA). These features were confirmed by digital subtraction angiography (catheter arterial angiogram). This is the first report of an intranidal aneurysm demonstrated by 4D-CTA. 4D-CTA can offer a comprehensive evaluation of the angioarchitecture and flow dynamics of an AVM for appropriate classification and management.