High-resolution MRI identifying the terminal segment of the intracranial vertebral artery fine and atherosclerotic lesions
10.3969/j.issn.1672-5921.2017.04.006
- VernacularTitle:高分辨MRI判断椎动脉颅内终末段发育纤细与动脉粥样硬化性病变
- Author:
Peng GAO
;
Yan MA
;
Xianggong DUAN
;
Yabing WANG
;
Yanfei CHEN
;
Fengshui ZHU
;
Liqun JIAO
- Keywords:
Atherosclerotic stenosis;
Hypoplasia in terminal intracranial vertebral artery;
High resolution magnetic resonance imaging;
Differential diagnosis
- From:
Chinese Journal of Cerebrovascular Diseases
2017;14(4):197-202
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the terminal segment of the intracranial vertebral artery (tICVA) fine and atherosclerotic lesions using high-resolution MRI (HRMRI) in order to guide endovascular interventional therapy.Methods From October 2015 to October 2016,4 patients with bilateral tICVA diagnosed with digital subtraction angiography (DSA) and admitted to Xuanwu Hospital,Capital Medical University were analyzed retrospectively.At the same time,time of flight (TOF) and black blood imaging were used.The bilateral tICVA imaging features in 4 patients were analyzed.Congenital dysplasia of vertebral artery and atherosclerotic lesions were identified.Results DSA revealed that bilateral tICVA fine or occlusion.HRMRI evaluation of the vascular wall structure showed that vascular dysplasia in 4 cases were all located on the right sides,showing no obvious thickening of the wall thickness,and the diameter was less than 1/2 of the contralateral side.One patient had atherosclerotic stenosis on the left and 3 had occlusion,showing local wall thickening,plaque formation,and resulting in the narrowing of the corresponding lumen and even occlusion.Three of the patients were treated with endovascular intervention.Conclusion HRMRI is helpful to differentiate hypoplasia in terminal intracranial vertebral artery and atherosclerotic stenosis or occlusion,identifying the dominant side of the vertebral artery and providing image basis for endovascular treatment of vertebral artery.
