摘要
目的探讨MSCT多平面重建(MPR)和容积重建(VR)技术在诊断腰椎峡部裂中的应用价值。方法搜集腰椎MSCT容积扫描,经后处理重建检出的腰椎峡部裂35例,分析其MPR、VR成像的CT表现,并与常规椎弓CT轴位像进行对照,评价对峡部裂及其继发病变的显示情况。结果MPR冠状面、经椎弓矢状面重建结合VR成像可清晰显示35例68处峡部裂;常规椎弓CT轴位像仅检出24例48处峡部裂,漏诊11例,漏诊率31%(11/35)。与常规椎弓轴位比较,MPR结合VR图像重建对峡部裂特征以及裂隙骨赘、椎间孔狭窄、椎体滑脱、椎间盘后突的相关继发病变征象显示均有明显优势。结论MPR、VR重建成像对峡部裂及其相关继发病变具有良好的显示能力,是检出峡部裂及其继发病变的理想成像方法。
Objective To evaluate the clinical application value of multi-slice CT （MSCT） MPR and VR technique in lumber spondyloschisis diagnosis. Methods To select 35 lumber spondyloschisis cases which confirmed by CT post-processing, compare its MPR and VR image with routine CT axial image of arcus vertebrae, evaluate their display ability of spondyloschisis and its secondary abnormity. Results Coronary and sagittal image of MPR combined with VR could clearly display 68 cases of spondylolysis in 35 patients. The routine axial CT image could only display 48 cases of spondylolysis in 24 patients and failed to diagnose 11 cases, the missed diagnosis rate is 31% （11/ 35）. Comparing the display ability of routine axial CT image, MPR and VR image are superior in detecting spondyloschisis, osleophyma, anterior foramina vertebral stricture, lumbar olisthe and vertebral disc herniation. Conclusion MSCT MPR and VR techniques show good display ability in spondyloschisis and its secondary abnormity, it is an ideal method in spondyloschisis diagnosis.
出处
《中国CT和MRI杂志》
2009年第2期59-61,共3页
Chinese Journal of CT and MRI
