Ruptured Cerebral Microaneurysm Diagnosed by 3-Dimensional Fast Spin-Echo T1 Imaging with Variable Flip Angles

Cerebral microaneurysms, which are 2 mm or small in size, are a rare cause of subarachnoid hemorrhage (SAH). The authors present 2 cases with ruptured microaneurysms, in which 3-dimensional (3D) fast spin-echo T1 imaging with variable flip angles (CUBE T1) using gadolinium-diethylenetriaminepentaacetic acid (Gd) enhancement was useful in diagnosing the microaneurysms as the source of bleeding. Case 1 was a 61-year-old woman who had an SAH localized to the left Sylvian fissure. A small bulge (1.4 mm) at the bifurcation of left middle cerebral artery (MCA), which was detected by 3D angiography, was well enhanced by CUBE T1 with Gd enhancement.

Source: Journal of Stroke and Cerebrovascular Diseases - May 23, 2015 Category: Neurology Authors: Hidenori Endo, Kuniyasu Niizuma, Miki Fujimura, Kenichi Sato, Takashi Inoue, Shin-ichiro Osawa, Teiji Tominaga Tags: Case Report Source Type: research