Leonardi M, Biasizzo E, Fabris G, Penco T, Bertolissi D
AJNR Am J Neuroradiol. 1983 May-Jun;4(3):846-7.
The biologic cost-effectiveness of computed tomography (CT) versus myelography is so favorable to CT that it is now the method of choice for evaluating patients with less clear-cut clinical findings. CT is now used to detect lesions formerly difficult to diagnose, such as subluxation, arthrosis, facet osteophytes, and stenosis of the vertebral canal, as well as herniated disks and lateral disks. The findings in over 1,000 patients examined by CT for lumbosacral spinal pathology are documented. Associated or multiple abnormalities were present in about 60% of cases, with bulging or herniated disks occurring in 45% and 44%, respectively. Postsurgical arachnoiditis was seen in 43% of 64 patients studied for recurrence of symptoms after surgery.
计算机断层扫描（CT）与脊髓造影相比，在生物学成本效益方面对CT极为有利，以至于它现在已成为评估临床症状不太明确患者的首选方法。CT现在用于检测以前难以诊断的病变，如半脱位、关节病、小关节骨赘、椎管狭窄以及椎间盘突出和侧隐窝狭窄。记录了1000多名因腰骶部脊柱病变接受CT检查患者的检查结果。约60%的病例存在相关或多种异常，其中椎间盘膨出或突出分别占45%和44%。在64例因术后症状复发接受研究的患者中，43%出现了术后蛛网膜炎。
