Bowen B C, Pattany P M
Department of Radiology, University of Miami School of Medicine, Miami, Florida 33136, USA.
Magn Reson Imaging Clin N Am. 1998 Feb;6(1):165-78.
Postcontrast MR angiography complements the standard spinal MR imaging study by improving detection and display of normal and abnormal intradural vessels, primarily veins. Detection of abnormal veins facilitates diagnosis of spinal vascular malformations and vascular tumors. The most useful application has been in screening for spinal dural arteriovenous fistula, in which MR angiography demonstrates the medullary vein into which the fistula drains, thus allowing noninvasive identification of the spinal level of the fistula.
增强磁共振血管造影通过改善正常和异常硬膜内血管（主要是静脉）的检测和显示，对标准的脊柱磁共振成像研究起到补充作用。异常静脉的检测有助于脊柱血管畸形和血管肿瘤的诊断。其最有用的应用是在筛查脊柱硬脊膜动静脉瘘方面，在这种情况下，磁共振血管造影可显示瘘管引流所进入的髓静脉，从而能够无创地确定瘘管的脊柱节段。
