MSCT后处理技术在脊柱侧弯诊断中的应用  

The Application of Post-processing Techniques of MSCT in the Diagnosis of Scoliosis

作　　者：胡雅琼[1] 平安松[1] 谢江涛[1] HU Ya-qiong;PING An-song;XIE Jiang-tao(Department of Spine and Bone Oncology,Central South Hospital,Wuhan University,Wuhan 430070,Hubei Province,China)

机构地区：[1]湖北省武汉大学中南医院脊柱与骨肿瘤科,湖北武汉430070

出　　处：《中国CT和MRI杂志》2020年第10期141-144,共4页Chinese Journal of CT and MRI

摘　　要：目的探究多层螺旋CT(MSCT)后处理技术在脊柱侧弯诊断中的价值。方法选择2016年2月至2019年3月我院收治的71例脊柱侧弯患者作为研究对象,所有患者均行脊柱正、侧位X线片、MSCT及其后处理技术检查。分析MSCT后处理技术对椎体的显示情况,比较MSCT及X线片对脊柱异常的检出率。结果 71例患者X线共检出脊柱畸形88处,MSCT检出畸形178处,X线及MSCT对脊柱畸形的检出率比较差异具统计学意义(P<0.05);多平面重建(MPR)/曲面重建(CRP)可允许各个角度观察畸形椎体冠状面、矢状面影像,可较好的显示椎管及脊髓情况;表面遮盖显示(SSD)重建对脊柱侧弯椎体形态显示良好,重建后通过图像旋转可观察脊柱矢状位曲度的改变,但对于椎管结构及软组织显示欠佳;容积显示技术(VRT)可通过调节不同密度阈值观察骨质及椎管形态,对脊柱形态、附件、椎管、脊髓等均可较好显示。结论 MSCT及其图像后处理技术可提供脊柱侧弯畸形立体结构及空间位置信息,对于脊柱异常的检出率优于X线片,可为临床诊断提供可靠的影像资料。Objective To explore the value of post-processing techniques of multi-slice spiral CT(MSCT)in the diagnosis of scoliosis.Methods Seventy-one patients with scoliosis admitted to the hospital from February 2016 to March 2019 were selected as subjects.All of them were examined with positive and lateral X-ray films,MSCT and its post-treatment techniques.The display of the vertebral body by post-processing techniques of MSCT was analyzed,and the detection rates of spinal anomalies by MSCT and X-ray films were compared.Results A total of 88 spinal anomalies were detected by X-ray in 71 patients,and 178 anomalies were detected by MSCT.There was a significant difference in the detection rate of X-ray and MSCT for spinal anomalies(P<0.05).Multi-planar reconstruction(MPR)/surface reconstruction(CRP)could be used to observe coronal and sagittal images of the deformed vertebral body at various angles,and could better show the condition of the spinal canal and the spinal cord.Surface shaded display(SSD)reconstruction well showed morphology of the vertebral body with scoliosis.After reconstruction,changes of sagittal curvature of the spine could be observed by image rotation,but it is not good for display of spinal canal structure or soft tissue.Volume display technology(VRT)could be used to observe the bone and spinal morphology by adjusting the threshold of different density.It could well display morphology of the spine,accessories,spinal canal and spinal cord,etc.Conclusion MSCT and its image postprocessing techniques can provide stereoscopic structure and spatial position information of scoliosis.The detection rate of spinal anomaly is better than X-ray film,and it can provide reliable imaging data for clinical diagnosis.

关 键 词：体层摄影机 X线计算机 脊柱侧弯 脊椎 

分 类 号：R682.13[医药卫生—骨科学] R445.3[医药卫生—外科学]