椎基底动脉扩张延长症的CTA分型及临床表现
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摘要
目的探讨椎基底动脉扩张延长症(VBD)的CT血管造影(CTA)影像学特点及临床表现。方法回顾性分析30例VBD患者的影像学及临床资料,根据椎基底动脉CTA形态进行影像学分型,并与对照组(30例)比较后循环脑梗死及血管狭窄的发生率。结果 (1)根据VBD在CTA上的表现,分为:S型、U型/L型、螺旋型;S型临床症状最轻,U型/L型次之,螺旋型最重。(2)30例VBD患者中,后循环脑梗死12例,血管狭窄8例,对照组分别为5例、17例,2组间后循环脑梗死及血管狭窄的发生率差异有统计学意义(P<0.05)。结论CTA可以对VBD进行分型,各型影像学及临床表现各异。VBD与后循环脑梗死关系密切。
Objetive To evaluate the imaging characteristics and clinical manifestations of CT angiography in vertebrobasilar dolichoectasia(VBD). Methods The imaging and clinical data of 30 patients with VBD were retrospectively analyzed. The imaging of CTA was performed according to the morphology of vertebrobasilar CTA, and the incidence of cerebral infarction and vascular stenosis was compared with the control group(30 cases).Results(1) According to the performance of VBD on CTA, it is divided into: S type, U type/L type, spiral type; S type clinical symptoms are the lightest, U type/L type is the second, and spiral type is the heaviest.(2) Among the 30 patients with VBD, 12 patients had posterior circulation cerebral infarction, 8 patients had vascular stenosis, and 5 patients in the control group, 17 patients. There was a statistically significant difference in the incidence of posterior circulation cerebral infarction and vascular stenosis between the two groups(P<0.05). Conclusion CTA can be used to classify VBD, and each type of imaging and clinical performance varies. VBD is closely related to posterior circulation cerebral infarction.
Objetive To evaluate the imaging characteristics and clinical manifestations of CT angiography in vertebrobasilar dolichoectasia(VBD). Methods The imaging and clinical data of 30 patients with VBD were retrospectively analyzed. The imaging of CTA was performed according to the morphology of vertebrobasilar CTA, and the incidence of cerebral infarction and vascular stenosis was compared with the control group(30 cases).Results(1) According to the performance of VBD on CTA, it is divided into: S type, U type/L type, spiral type; S type clinical symptoms are the lightest, U type/L type is the second, and spiral type is the heaviest.(2) Among the 30 patients with VBD, 12 patients had posterior circulation cerebral infarction, 8 patients had vascular stenosis, and 5 patients in the control group, 17 patients. There was a statistically significant difference in the incidence of posterior circulation cerebral infarction and vascular stenosis between the two groups(P<0.05). Conclusion CTA can be used to classify VBD, and each type of imaging and clinical performance varies. VBD is closely related to posterior circulation cerebral infarction.
引文
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[8]Kumral E,Kisabay A,Atac C,et al.The mechanism of ischemic stroke in patients with dolichoectatic basilar artery[J].Eur J Neurol,2005,12(6):437-444.
[9]Pico F,Labreuche J,Gourfinkel-An I,et al.Basilar artery diameter and 5-year mortality in patients with stroke[J].Stroke,2006,37(9):2342-2347.
[2]张保朝,王润润,殷洁,等.椎基底动脉纡曲延长症的MRA初步分型及意义[J].中国实用神经疾病杂志,2012,15(24):15-17.
[3]范晓颖,唐光健,蒋学详.头颅CT平扫诊断椎基底动脉延长扩张症[J].中国医学影像技术,2002,18(5):215-217.
[4]Pico F,Labreuche J,Touboul P J,et al.Intraeranial arterial dolichoectasia and its relation with atherosclerosis and stroke subtype[J].Neurolo gy,2003,61(12):1736-1742.
[5] Kim HC,Yang DM,Kim SW, e t al.Gastrointestinal tract perforation:evaluation of MDCT according to perforation site and elapsed time[J].Eur Radiol,2014,24(6):1386.
[6]Amin-Hanjani S,Du X,Zhao M,et al.Use of quantitative magnetic resonance angiography to stratify stroke risk in symptomatic vertebrobasilar disease[J].Stroke,2005,36(6):1140-1145.
[7]Passero S,Filosomi G.Posterior circulation infarcts in patients with vertebrobasilar dolichoectasia[J].Stroke,1998,29(3):653-659.
[8]Kumral E,Kisabay A,Atac C,et al.The mechanism of ischemic stroke in patients with dolichoectatic basilar artery[J].Eur J Neurol,2005,12(6):437-444.
[9]Pico F,Labreuche J,Gourfinkel-An I,et al.Basilar artery diameter and 5-year mortality in patients with stroke[J].Stroke,2006,37(9):2342-2347.