Stockley I, Getty C J, Dixon A K, Glaves I, Euinton H A, Barrington N A
Problem Back Unit, Northern General Hospital, Sheffield.
Clin Radiol. 1988 Mar;39(2):144-9. doi: 10.1016/s0009-9260(88)80012-6.
The radiculographic and computed tomographic findings in those nerve roots compressed by lumbar lateral canal entrapment have been assessed in a prospective series of 44 patients in whom such entrapment was found at surgery. The radiological procedures were reported by radiologists who were unaware of the clinical findings. Radiculography was performed in 41 of the patients and enabled the site or sites of entrapment to be correctly predicted in 62% of patients undergoing primary decompression and in 42% of patients undergoing revision surgery. Computed tomography (CT) was performed in 24 of the patients and enabled entrapment to be correctly predicted in 75% of the patients in both groups. We conclude that computed tomography is superior to radiculography in demonstrating lumbar lateral entrapment, and should usually be reserved for patients in whom operation or other intervention is warranted on clinical grounds. Otherwise false positive results may occur, especially in elderly patients, although the true incidence of false positive results in this condition is not known and has not been assessed in this study.
在一项对44例经手术证实存在腰椎侧隐窝狭窄导致神经根受压患者的前瞻性研究中，对神经根造影和计算机断层扫描（CT）的表现进行了评估。放射学检查由不了解临床结果的放射科医生报告。41例患者接受了神经根造影，在初次减压的患者中，62%能正确预测卡压部位，翻修手术患者中为42%。24例患者接受了计算机断层扫描（CT），两组中75%的患者能正确预测卡压情况。我们得出结论，在显示腰椎侧隐窝狭窄方面，计算机断层扫描优于神经根造影，通常应保留给基于临床理由需要手术或其他干预的患者。否则可能会出现假阳性结果，尤其是在老年患者中，尽管这种情况下假阳性结果的真实发生率尚不清楚，本研究也未进行评估。
