Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi
-
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi · Feb 2007
[Investigation of morphology and anatomic variations of circle of Willis and measurement of diameter of cerebral arteries by 3D-TOF angiography].
To observe the morphology and anatomic variations of the circle of Willis and its clinical significance. To measure and establish the normal reference parameters of average diameters of its component vessels in the healthy Chinese by using 3D-TOF MR angiograms and to determine whether age-or sex-related differences exists in the circle' anatomy. MRA was performed in 153 healthy subjects. ⋯ The display rate of the anterior and the posterior communicating arteries was 87.58%o (134/153) and 65.34% (100/153) respectively. Display rate of fetaltype posterior cerebral artery(PCA) was 20.92%. 3D-TOF MR angiography has important clinical significance for evaluating morphology and anatomic variations of circle of Willis. The normal values of diameter of cerebral arteries on MR angiograms may play a reference role in diagnosing cerebral vascular diseases.