Kozin F, Carrera G F, Ryan L M, Foley D, Lawson T
Arthritis Rheum. 1981 Dec;24(12):1479-85. doi: 10.1002/art.1780241205.
Computed tomography (CT) and conventional radiography of the sacroiliac joint were compared in 43 patients. CT appeared to be far more sensitive and equally specific in the recognition of sacroiliitis. In a number of patients with sacroiliitis diagnosed by both techniques, CT demonstrated abnormalities that were not demonstrated by conventional radiographs. Of those patients with clinical evidence of sacroiliitis and HLA-B27 positivity, 50% had negative or equivocal radiographs compared to 19% who had negative computed tomographic images for sacroiliitis.
对43例患者的骶髂关节计算机断层扫描（CT）和传统X线摄影进行了比较。在骶髂关节炎的识别方面，CT似乎更敏感且特异性相同。在一些通过两种技术均诊断为骶髂关节炎的患者中，CT显示出传统X线片未显示的异常。在那些有骶髂关节炎临床证据且HLA - B27阳性的患者中，50%的患者X线片为阴性或不明确，而骶髂关节炎CT图像为阴性的患者比例为19%。
