320排动态容积CT血管造影对硬脊膜动静脉瘘的诊断价值  

Evaluation of 320-slice dynamic volumetric CT angiography in diagnosing spinal dural arteriovenous fistula

作　　者：程少容[1] 雷继晓[2] 王鹰[1] 熊飞[1] 王翅鹏[1] 李锋[3] 

机构地区：[1]广州军区武汉总医院放射影像科,武汉430070 [2]解放军总医院第一附属医院放射科 [3]湖北文理学院附属医院放射科

出　　处：《介入放射学杂志》2016年第7期573-576,共4页Journal of Interventional Radiology

摘　　要：目的探讨320排动态容积CT诊断硬脊膜动静脉瘘(SDAVF)的价值。方法对12例临床表现符合脊髓血管畸形患者作CTA(320排CT)和对比增强MRA(CE-MRA)检查,并于1周内作DSA检查,评价CTA成像所示病变范围、供血动脉、瘘口及引流静脉等,并与CE-MRA、DSA检查对照。结果 12例患者经CTA检查均明确显示脊髓异常血管及病变范围,容积再现(VR)、多平面重组(MPR)和最大密度投影(MIP)成像清晰显示畸形血管的供血动脉、瘘口、引流静脉,畸形血管与周围骨性结构空间位置关系。CE-MRA检查显示脊髓畸形血管病变范围,但仅显示8例患者供血动脉及瘘口位置。结论 320排动态容积CT可快速、无创、清晰地显示脊髓血管畸形患者供血动脉、引流静脉及瘘口,弥补了DSA、CE-MRA单一成像的不足,对SDAVF有较高的诊断准确率。Objective To assess the value of 320-slice dynamic volumetric CT angiography in diagnosing spinal dural arteriovenous fistula （SDAVF）. Methods A total of 12 patients, whose clinical manifestations were consistent with vascular malformation of the spinal cord, were enrolled in this study. Both 320-slice CT angiography （CTA） examination and contrast-enhanced MR angiography （CE-MRA） examination were performed in all patients, which was followed by digital subtraction angiography （DSA） examination within one week. The lesion＇s extent, feeding artery, fistula, draining vein and other findings, which were demonstrated on CTA, were evaluated, and the results were compared with CE-MRA and DSA manifestations. Results CTA clearly displayed the abnormal vessels of spinal cord and the lesion＇s extent in all 12 patients. Volume rendering （VR）, multiple planar reformation（MPR） and maximum intensity projection （MIP） distinctly showed the feeding artery, fistula, draining vein of SDAVF, as well as the relationship between the abnormal vessels and the spatial position of the surrounding bony structures. CE-MRA revealed the lesion＇s extent of SDAVF, but only in 8 patients the feeding artery and the location of fistula could be demonstrated. Conclusion The use of 320-slice dynamic volumetric CT angiography can quickly and clearly display the feeding artery, draining vein and fistula of SDAVF, which complements to a single imaging （ DSA, CE-MRA ） examination; and it has higher diagnostic accuracy for SDAVF.

关 键 词：脊髓疾病 动静脉瘘 体层摄影术 X线计算机 血管造影术 磁共振 血管造影术 数字减影 

分 类 号：R744.1[医药卫生—神经病学与精神病学] R816.1[医药卫生—临床医学]