Abstract:
BACKGROUND AND PURPOSE:This study investigated whether incompleteness of the anterior part of the circle of Willis affects the occurrence of lacunes in the basal ganglia. METHODS:One thousand and seventy-seven healthy individuals examined by magnetic resonance (MR) imaging and MR angiography were divided into eight subgroups according to our new classification. RESULTS:Logistic regression analysis demonstrated that healthy individuals with incompleteness of the anterior circle of Willis had significantly higher frequency of lacunes [odds ratio (OR): 2.121, 95% confidence interval (CI): 1.477-3.108; or OR: 2.46, 95% CI: 1.377-4.384 in cases without or with fetal type posterior communicating artery, respectively] and higher numbers of lacunes (P < 0.001 or P < 0.001 in cases without or with fetal type posterior communicating artery, respectively) compared to patients with complete circle of Willis. CONCLUSIONS:Incompleteness of the anterior part of the circle of Willis significantly affected the occurrence of lacunes.
journal_name
Eur J Neuroljournal_title
European journal of neurologyauthors
Miyazawa N,Shinohara T,Yamagata Zdoi
10.1111/j.1468-1331.2011.03400.xsubject
Has Abstractpub_date
2011-11-01 00:00:00pages
1358-60issue
11eissn
1351-5101issn
1468-1331journal_volume
18pub_type
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