腰椎间盘突出症腰椎X线平片判别模型

Model of distinction from lumbar vertebra roentgenogram in protrusion of lumbar intervertebral disk

典型的腰椎间盘突出症(Lop)根据临床症状、体征及参考X线平片诊断并不难。对于不典型的病例确诊有一定的难度。目前除应用X线平片或碘油造影外,还可采用较先进的“CT”扫描和最先进的“核磁共振”检查。但因目前价格较贵,难以普遍应用。本文探讨了腰椎X线平片表现对腰椎间盘突出症的诊断价值。我们将本组14例已做过腰椎CT扫描,确诊为腰椎间盘突出症患者其X线平片表现与非本病的一般腰腿痛患者(年纪相似)14例腰椎平片作对照。采用数学上的判别分析方法,对照所选的各项指标如腰椎脊柱侧弯、腰椎顺位、椎体前缘磨角、腰椎间隙变窄等8个指标把它们数量化。选用逐步Fisher判别方法建立判别模型。通过判别,其准确率达100%。并经外延检验,本病及非本病的一般腰痛患者各3例,其判断准确率达到100%。

Diagnosis of typical case in protrusion of lumbar intervertebral disk is not difficult.according to clinical symptoms,signs and reference roentgenogram.For atypical cases,definite diagnosis has certain difficulty.At present,except for use of roentgenogram or iodolography,also used advanced CT scanning and most advanced nuclear magnetic reso- nance examinational apparatus.In the diagnosis of lumbar intervertbral disk protrusion,it is more accurate.But present price is expensive,difficult to generally use.This paper ap- proached diagnostic value of lumbar vertebra roentgenogram manifestation in lumbar inter- vertebral disk protrusion.We compared lumbar roentgenogram manifestation of 14 cases taken lumbar CT scanning with lumbar roentgenogram manifestation of 14 cases who were general lumbago—leg pain patients of similar age,not this disease patients.We used mathe- matical distinguishable analytical method.Indexes for comparison,as lumbar lateral winding,lumbar order location,abrasion on anterior edge of vertebral body,narrow of lumbar intervertebral space,et al 8 indexes were numerated.We established model of distinction with progressive Fisher's distinction method.Through distinction,accurate rate achieved 100%. Through extension examination of 3 cases with this disease and 3 cases with general lumbago —leg pain,their accurate rate of distinction achieved 100%.