Editor's Choice
Characterization of Aneurysm Remnants after Endovascular Treatment: Contrast-Enhanced MR Angiography versus Catheter Digital Subtraction Angiography • R. Agid, R.A. Willinsky, S.-K. Lee, K.G. TerBrugge, and R.I. Farb
It is well known that many aneurysms will be incompletely occluded by coils initially or will later recanalize. A noninvasive method would be ideal to identify these aneurysms. Here, the authors performed a retrospective study that included residual or recurrent aneurysms (n=44) measuring more than 2 mm that were imaged with contrast-enhanced MR angiography and catheter digital subtraction angiography. They concluded that in patients with known remnants, MR angiography was equal to digital subtraction angiography and, in some cases, even better.
Flat Panel Detector Angiographic CT in the Management of Aneurysmal Rupture During Coil Embolization • T. Engelhorn, T. Struffert, G. Richter, M. Doelken, O. Ganslandt, W. Kalender, and A. Doerfler
Although this is a case report, I include it in this month’s selections because it illustrates the use of a relatively new technique in an important clinical scenario: subarachnoid hemorrhage during treatment of aneurysms. The degree of hemorrhage not only may have prognostic but also immediate treatment implications. I have the impression that many clinical neurointerventionalists use this technique, but our journal contains scant evidence of its utility.
Association between Cerebral Microbleeds on T2*-Weighted MR Images and Recurrent Hemorrhagic Stroke in Patients Treated with Warfarin following Ischemic Stroke • H. Ueno, H. Naka, T. Ohshita, K. Kondo, E. Nomura, T. Ohtsuki, T. Kohriyama, S. Wakabayashi, and M. Matsumoto
Brain microhemorrhages place patients at increased risk for subsequent larger bleeds. The authors aimed to determine if these small bleeds were associated with recurrent hemorrhages in patients receiving warfarin. Their results revealed cerebral microbleeds were associated with increased risk of developing larger bleeds independently of increased international normalized ratio and hypertension.