64层螺旋CT容积扫描及其后处理技术在腰椎峡部裂诊断中的价值

目的探索64层螺旋CT容积扫描及后处理技术在腰椎峡部裂诊断中的价值。方法应用64层螺旋CT对38例腰椎峡部裂患者进行容积扫描,对获得的图像进行MPR、VR及CRP等后处理技术,观察腰椎峡部裂的显示情况,并观察椎体的滑脱情况、椎间盘改变以及周缘骨质的改变。结果对38例患者腰椎的容积扫描图像及后处理图像进行分析,共发现腰椎峡部裂77处,其中Ⅰ°滑脱29例,Ⅱ°滑脱5例,Ⅲ°滑脱1例;在各种后处理技术中,MPR以及任意切割VR对腰椎峡部裂以及腰椎滑脱的显示率最高,均为100%;并且可以清晰的显示椎弓峡部裂位置、宽度以及周围骨质的改变。结论 64层螺旋CT容积扫描及后处理技术在腰椎峡部裂诊断中具有较高的应用价值,并能够为临床治疗提供参考及依据。

The value of post-processing technique of 64-spiral CT in diagnosing lumbar spondyloschisis

Objective To evaluate the value of imaging reconstruction technique of 64-slice spiral CT in diagnosing lum- bar spondyloschisis. Methods 38 patients with lumbar spondyloschisis underwent by 64-slice spiral CT. The data were transmitted to workstation and the images were reconstructed with the techniques of multi-planar reconstruction （MPR）, volume rendering （VR） and curved planar reconstruction （CPR） in order to observe the lumber spondyloschisis, the slip of upper lumbar, the change of interertebral disc, and the change of surrounding bones. Results 77 lumbar spondyloschisis were found in 38 cases, in which 29 cases were the degree I slip of upper lumbar, 5 cases were the degree II slip of upper lumbar, 1 case was the degree III slip of upper lumbar; The display rates of spondylochisis by MPR and VR was the high- est, which were 100~ and could find clearly the position, length of the lumbar spondyloschisis, the change of around bones. Conclusion The 64-slice spiral CT and the imaging reconstruction technique have higher value in diagnosing lumbar spodyloschisis, which can provide more valid information for clinicians.