Magnetic resonance angiographic study of the relationship between the development of A1 segment of anterior cerebral artery and communicating artery
SHU Xiao-Hua, CA Chang-Beng, HUANG Xiao-Hua, XIE Xin-Guo, SHU Jian-Jun
Chinese Journal of Clinical Anatomy ›› 2014, Vol. 32 ›› Issue (4) : 423-426.
Magnetic resonance angiographic study of the relationship between the development of A1 segment of anterior cerebral artery and communicating artery
Objective To investigate the relationship between the development of A1 segment of the anterior cerebral artery and the communicating artery. Methods A total of 107 subjects underwent 3.0 T magnetic resonance angiography (MRA) were involved in this study. The development of the anterior cerebral artery and the state of communicating artery were observed. The diameter of A1 segment of the anterior cerebral artery and the communicating artery, Correlation between them were analyzed. Results ① Hypoplastic left and right anterior A1 segments of the cerebral artery were respectively 16.82%（18/107）and 22.43%（24/107）. Absence of the left and right anterior cerebral arteries were 1.87%（2/107）and 0.93%（1/107）. ② 51 patients with the anterior communicating artery was developed. ③ 39 patients with single or bilateral posterior communicating arteries were developed, among them 21 cases developed bilaterally, 7 cases developed on the left and 11 cases on the right. ④ The development of the communicating artery was correlated with the development of A1 segment of anterior cerebral artery（r=0.654，P＜0.01). Conclusions The hypoplasia of A1 segment of the anterior cerebral artery leads to compensatory development of the communicating artery.
A1 segment of anterior cerebral artery / Anterior communicating artery / Posterior communicating artery / Magnetic resonance angiography
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