Morphological characteristics associated with rupture risk of multiple intracranial aneurysms
10.1016/j.apjtm.2017.09.015
- Author:
Guang-Xian WANG
1
;
Lan-Lan LIU
1
;
Li WEN
1
;
Dong ZHANG
1
;
Yun-Xing CAO
2
;
Yu-Chun PEI
2
Author Information
1. Department of Radiology, Xinqiao Hospital, Third Military Medical University
2. Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University
- Publication Type:Journal Article
- Keywords:
CT angiography;
Multiple intracranial aneurysms;
Risk factors;
Subarachnoid hemorrhage
- From:
Asian Pacific Journal of Tropical Medicine
2017;10(10):1011-1014
- CountryChina
- Language:Chinese
-
Abstract:
Objective To identify the morphological parameters that are related to intracranial aneurysms (IAs) rupture using a case-control model. Methods A total of 107 patients with multiple IAs and aneurysmal subarachnoid hemorrhage between August 2011 and February 2017 were enrolled in this study. Characteristics of IAs location, shape, neck width, perpendicular height, depth, maximum size, flow angle, parent vessel diameter (PVD), aspect ratio (AR) and size ratio (SR) were evaluated using CT angiography. Multiple logistic regression analysis was used to identify the independent risk factors associated with IAs rupture. Receiver operating characteristic curve analysis was performed on the final model, and the optimal thresholds were obtained. Results IAs located in the internal carotid artery (ICA) was associated with a negative risk of rupture, whereas AR, SR1 (height/PVD) and SR2 (depth/PVD) were associated with increased risk of rupture. When SR was calculated differently, the odds ratio values of these factors were also different. The receiver operating characteristic curve showed that AR, SR1 and SR2 had cut-off values of 1.01, 1.48 and 1.40, respectively. SR3 (maximum size/PVD) was not associated with IAs rupture. Conclusions IAs located in the ICA are associated with a negative risk of rupture, while high AR (>1.01), SR1 (>1.48) or SR2 (>1.40) are risk factors for multiple IAs rupture.
