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MR-DWI–Positive Lesions and Symptomatic Ischemic Complications After Coiling of Unruptured Intracranial Aneurysms

Title
MR-DWI–Positive Lesions and Symptomatic Ischemic Complications After Coiling of Unruptured Intracranial Aneurysms
Authors
Dong-Hun Kang;Byung Moon Kim;Yong Bae Kim;Jae Whan Lee;Jaechan Park;Seung Kon Huh;Yong-Sun Kim;Dong Ik Kim;Sang Hyun Suh;Dong Joon Kim
Issue Date
2013
Journal Title
Stroke
ISSN
0039-2499
Citation
Stroke, Vol.44(3) : 789~791, 2013
Abstract
BACKGROUND AND PURPOSE: The aims of this study are to evaluate the risk factors for symptomatic ischemic complication (symptomatic ischemic complication [SIC], transient ischemic attack, or stroke) and microembolisms detected as MR diffusion-weighted imaging (MR-DWI)-positive (DWI(+)) lesions, and the relationship between DWI(+) and SIC after coiling of unruptured intracranial aneurysm. METHODS: Between March 2009 and November 2011, 382 unruptured intracranial aneurysms in 343 patients underwent both coiling and posttreatment MR-DWI. The incidence of and risk factors for SIC and DWI(+), and the relationship between DWI(+) and SIC were retrospectively analyzed. RESULTS: The incidence of SIC was 4.1%. The incidence of DWI(+) was 54.5%. The number of DWI(+) lesions was significantly larger in the SIC group, than in the asymptomatic one (12.1±10.4 versus 5.0±8.7, P<0.00). The cutoff value of DWI(+) for predicting SIC was ≥6 (sensitivity 85.7%, specificity 70.7%). The patients with DWI(+) ≥6 was 28.6%. Of the patients with SIC, the patients with DWI(+) ≥6 was 78.6%. Patients aged≥65 years had a trend for SIC, and it was the only independent risk factor for DWI(+) ≥cutoff (n=6; 95%CI, 1.167-3.083). CONCLUSIONS: The number of DWI(+) lesions was significantly larger in the SIC group than in the asymptomatic one after coiling of unruptured intracranial aneurysm. Patients aged≥65 had a trend for SIC, and it was the only independent risk factor for the number of DWI(+) ≥cutoff value (n=6) for predicting SIC.
URI

http://ir.ymlib.yonsei.ac.kr/handle/22282913/86553
DOI
10.1161/STROKEAHA.112.669853
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Neurosurgery
1. 연구논문 > 1. College of Medicine > Dept. of Radiology
Yonsei Authors
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