脑发育性静脉异常的CT诊断

CT diagnosis of brain developmental venous anomalies

目的分析脑发育性静脉异常的CT表现,评价CT对脑发育性静脉异常(DVA)的诊断价值,提高对本病的认识。方法 5例脑发育性静脉异常患者中全部行CT检查。对DVA在CT检查的表现进行分析,对DVA的部位、分型、引流方式以及合并的其它异常进行探讨。结果 5例患者有5个DVA,其中1例多发。均发生在幕上,表浅型1例和皮质下型4例,引流静脉均为单支引流,未见多支引流。CTA均能清晰显示其特征性表现即"水母头"状扩张的髓静脉汇入粗大的引流静脉干。结论 CTA能正确诊断和评价DVA。

Objective To analyse cerebral developmental venous anomaly （DVA） of the CT performance, to evaluate the value of CT on cerebral developmental venous anomaly, and to raise cognition of this disease. Methods All of the 5 cases of DVA were taken CT examine. The location, type, draining vein and others DVA were evaluated. Results All cases were supratentorial. One case was superficial type and others were subcortical type. The characteristic ＂Caput Medusas＂ imaging appearance of DVA and numerous radiation medullary veins were gathered together into one larger drain veins and flowed into superficial were showed on CT. Conclusion CT is an effective method for DVA diagnosis and evaluation.