腰椎间盘退行性变的CT与MRI对比研究

目的分析腰椎间盘退行性变的影像学表现,比较CT与MRI对腰椎间盘退行性变的诊断价值。方法对70例腰椎间盘退行性变患者,同时进行CT与MRI检查,分析其影像学特点,并应用配对χ2检验对计数资料进行统计学处理。结果70例腰椎间盘退行性变患者的CT和MRI表现存有不同差异。对椎间盘早期退变、中度及重度突出的椎间盘与硬膜囊分界的清晰度MRI优于CT;对椎间盘膨出和/或突出、椎间隙狭窄的诊断价值和轻度突出的椎间盘与硬膜囊分界的清晰度MRI同CT差异不大;对椎间盘积气、髓核钙化、椎间盘突出分型的诊断价值CT优于MRI。结论CT与MRI2种检查方法对腰椎间盘退行性变的诊断有互补作用。

Objective To compare the diagnostic value of imaging expression of lumbar disc degeneration according to the analysis of imaging phenomena from CT and MRI examination. Materials and Methods Seventy patients with lumbar disc degeneration were examined together with MRI and CT, compare and analyse these imaging phenomena then use statistical methods （X^2） to study them.Results There are positive differences between CT and MRI toward 70 patients＇ lumbar disc degeneration. MRI does better in incipient degeneration,the definition of boundary between medium or more serious lumbar disc herniation＇ disc and dural sac than CT .There is no positive difference in diagnostic value about lumbar disc bulging and/or herniation,disc space narrowing,the definition of boundary between incipient lumbar disc herniation＇disc and dural sac .CT does better in calcification of the herniated disc ,classification of lumbar disc herniation ,vacuum phenomenon than MRI.Conclusion CT and MRI can consummate each other in diagnosis to lumbar disc degeneration.