CT angiography demonstration of the development of intraventricular hemorrhage during aneurysm rupture.

The authors present the 3D reconstructed CT angiography image of extravasation from a rebleeding aneurysm. Direct hemorrhage of a bleeding aneurysm into the lateral ventricle was detected by CT angiography. This image clearly visualized that extravasated contrast medium spurting from a rupturing anterior communicating artery aneurysm, penetrated the ventricle wall and passed through the lateral ventricle to reach the temporal horn. This case provides a real-time demonstration of the way how an intraventricular hemorrhage develops during rupture of an anterior communicating artery aneurysm.