应用后处理技术减少腰椎CT检查隐性脊柱裂的漏诊

目的:探讨腰椎MSCT检查中隐性脊柱裂漏诊的原因及避免方法.方法:回顾性分析300例行MSCT腰椎扫描的病例,找出隐性脊柱裂的病例并行图像后处理形成A、B两组诊断图像,A组为常规横断面图像,B组为横断面、冠状面MIP及VRT的组合图像,3位诊断医师在提示前与提示后两次观察两组图像并给出诊断报告,统计各组脊柱裂的漏诊情况.结果:300例患者中,发现隐性脊柱裂58例,漏诊率A组高于B组,第一次高于第二次.结论:隐性脊柱裂在腰椎MSCT检查中常被忽略,利用图像后处理技术,能有效避免漏诊,并进一步分型.

Using Image Postprocessing to Avoid Mis-diagnosis of SBO in Spinal MSCT

Objective:To discuss the reasons of missed diagnosis of spina bifida occulta (SBO) in spinal multislice CT and the solution to avoid it.Methods:Review the CT findings of 300 cases who underwent CT spinal exam and find out the cases of SBO,then run image postprocessing to form two groups diagnosis image as A and B. Group A contain the conventional transverse images and group B include transverse MPR,coronal MIP and VRT images.Three diagnostician reading the two groups images before and after hint and make a diagnosis for each case.Analyses the missed diagnosis of SBO between the different groups.Results:58 cases of SBO were found in 300 patients.The mis-diagnosis of SBO in group A were higher,the first time is higher than the second.Conclusion:SBO is often ignored in spinal CT exam.Image postprocessing techniques is helpful to avoid mis-diagnosis and type SBO.