【摘要】 目的 探讨磁共振血管成像(包括快速3D增强MRA技术和常规MRA)在脊髓动静脉畸形的诊断价值。方法 回顾分析10例脊髓动静脉畸形MRA资料,均由选择性脊髓血管造影确诊,全部病例均使用3D增强MRA技术(CE-MRA),头颈部另外还使用常规MRA(3D-TOF MRA)。结果 髓内动静脉畸形3例,AVM血管巢的MRA表现为血管粗细不一,扭曲成团,并显示1条或多条供血动脉及增粗的引流静脉。髓外硬膜内动静脉畸形5例,其中3例为AVM,MRA显示有血管巢、供血动脉及引流静脉;2例为AVF,MRA可以显示供血动脉及引流静脉,并可推断瘘口的位置。硬脊膜动静脉瘘2例,MRA只表现为髓周血管扩张。结论 MRA不仅可以对脊髓动静脉畸形作定性诊断,而且还可以显示病灶的内部结构,已成为无创性诊断脊髓血管畸形的理想方法。更多还原

【Abstract】 Objective To study the diagnostic value of spinal arteriovenous malformations(AVMs) with MR angiography(MRA).Methods MRA date in 10 cases with spinal AVM confirmed by selective angiograms.All patients were examined with 3D CE MRA and a part of patients examined with routine MRA(3D-TOF MRA).Results 3 cases were intramedullary spinal AVMs,the vascular nidi appeared as abnormal tangled vessels,one or several feeding vessels and draining veins on MRA.5 cases were intradural AVM,including AVM in 3 cases and arteriovenous fistulas in 2 cases,MRA showed vascular nidus,feeding vessels,draining veins and arteriovenous fistula.2 cases were dural arteriovenous fistulas,MRA showed perimedullary veins were dilated.Conclusion MRA not only determine the spinal AVM,but also can show the structure inside the focus,so it is an ideal technique to diagnose spinal AVM.更多还原