颈内动脉纤维肌肉发育不良的MSCT血管造影诊断(附9例报告)

目的:探讨颈内动脉纤维肌肉发育不良的多层螺旋CT血管造影(MSCTA)表现及诊断。方法:收集本院2003年~2005年6月经多层螺旋CT血管造影检查确诊的纤维肌肉发育不良9例。结果:9例中发生在颈内动脉颅内段5例,其中3例同时合并前、中动脉病变;岩骨段1例;单一中动脉3例。合并颈内动脉颅外整段狭窄、闭锁者2例,椎动脉整段性狭窄者2例,累计病灶17处。血管改变有:血管对称性狭窄,局限性偏心性狭窄,串珠样扭结状改变,狭窄伴动脉瘤。脑实质表现有:脑实质正常,脑梗塞,蛛网膜下腔出血。结论:本病无特异性临床症状,诊断依靠对本病的警惕,影像学特点是节段性血管腔狭窄及串珠样改变,使用MSCTA是生前诊断本病的简便有效方法。

Multislice CT angiography diagnosis of internal carotid artery fibromuscular dysplasia (9 cases report)

Objective:To find out the manifestation and diagnosis of multi-row spirals CT angiography about fibromuscular dysplasia of the internal carotid arteries.Methods:Collection nine cases of fibromuscular dysplasia being final diagnosis through multi-row spiral CT in our hospital from 2003 to the June of 2005. Results:There are five cases occur in the intracranial internal carotid artery among the nine cases. Among the five cases, there are three cases of front or middle artery. One case occurs in the segment of internal carotid artery in petrosal bone, and three cases occur in single middle artery. There are two cases stenosis and atresia of the whole extracranial internal carotid artery, two cases stenosis of the whole vertebral artery. To add up ,there are seventeen focus of lesions. The changes of blood vessel have: symmetry stenosis; limited eccentric stenosis; "string of beads" appearance and kink changes; stenosis with aneurysm. The manifestation of the brain parenchyma have: normal; cerebral infarction; subarachnoid hemorrhage.Conclusion:The disease has no specificity about clinical symptom. The diagnosis depends on being on guard against it. The feature of the radiology is segment stenosis of the blood vessel and the changes of beads type. Use of MSCTA is a handy and effective method to get the diagnosis in life.