Abstract：Objective: To evaluate value of dynamic volume CT(DVCT) using “a one-stop protocol for stroke” in the diagnosis of vertebrobasilar dolichoectasia(VBD). Methods: Twenty two patients(male/female=16/6, aged 39~79 years old) with DVCT-confirmed VBD were included into this study. For each patient with VBD, the location score and height score of basilar artery(BA) were determined and the BA diameter were measured in a post-processing workstation, as well perfusion status of the posterior circulation area were evaluated using a whole-brain perfusion analysis software. Results: Of 22 patients, the BA diameter was (6.12±1.73) mm on average(range 3.9~10.1 mm), the averaged BA height and location score were 2.32±0.48 and 2.32±0.78(range 1 to 3) respectively. Posterior-circulation abnormal perfusion were detected in 11 patients with VBD(50%), which was characterized by inordinately increased TTP, and increased rCBF and contracted MTT and presence of brain infarct lesions in serious cases. Between normal perfusion in posterior-circulation area and abnormal perfusion groups, there have significant difference both the BA position score and BA diameter(Mann-Whitney U test, P<0.05). Conclusion: For patients with VBD, DVCT examination could well demonstrate the morphologic abnormality in vertebrobasilar arteries and abnormal perfusion in posterior circulation.
黄文才，吴 倩，周佳妮，陈信坚，李国雄. 动态容积CT对椎基底动脉扩张延长症的诊断价值[J]. 中国临床医学影像杂志, 2017, 28(8): 538-541.
HUANG Wen-cai, WU Qian, ZHOU Jia-ni, CHEN Xin-jian, LI Guo-xiong. Diagnostic value of dynamic volume CT in vertebrobasilar dolichoectasia syndrome. JOURNAL OF CHINA MEDICAL IMAGING, 2017, 28(8): 538-541.
