CT椎间盘造影诊断腰椎间盘突出症

Lumbar Disc Herniation Diagnosed by CT-discog-raphy

７３例临床疑诊为腰椎间盘突出症的患者作了脊髓造影和ＣＴ椎间盘造影检查。手术治疗５３例，其中突出４５例５１个间隙。两种方法的阳性率分别为７０％和９２％。ＣＴ椎间盘造影影像能清晰显示突出物的大小、部位，硬膜囊神经根受压、造影剂充填、关节突退变情况。当其它辅助检查仍不能明确定性和定位诊断时，ＣＴ椎间盘造影可帮助确诊，尤其对Ｌ＿５－Ｓ＿１椎间盘突出意义更大。

AbstractSeventy-three consecutive cases of lumbar discherniation(LDH)were studied by both myelographyand CT-discography,LDH was confirmed in 45 casesamong the 53 cases treated with surgery. The inci-dence of positive of myelography and CT-discographywas 81.4%and 97.9%respectively.CT-discographycan demonstrate the size, location, filling capacity ofthe discs and their relationship with the dural sac andthe nerve roots. CT-discography is especially usefulfor the examination of L_5-S_1 protrusions where thequantity and quality of the lesions cannot be defined byother imaging methods.