低剂量MSCT扫描后处理技术对肠梗阻诊断的增益价值

发布时间：2018-03-26 17:40

本文选题：肠梗阻　切入点：体层摄影术　出处：《中国临床医学影像杂志》2015年04期

【摘要】：目的:探讨低剂量多层螺旋CT(MSCT)扫描后处理技术对肠梗阻诊断的增益价值。方法:回顾性分析83例临床疑诊肠梗阻患者的影像学资料,分别以常规横断位图像、常规横断位联合后处理技术重组图像为2种评估依据,诊断结果与临床确诊结果相比较,并进行统计学检验。后处理技术包括多平面重建(MPR)、最大密度投影(MIP)、容积再现(VR)。结果:常规横断位图像诊断的敏感性为78.3%(47/60)、漏诊率为21.7%(13/60);特异性为91.3%(21/23)、误诊率为8.7%(2/23);准确性为81.9%(68/83)。常规横断位联合后处理技术重组图像的敏感性为95.0%(57/60)、漏诊率为5.0%(3/60);特异性为95.7%(22/23)、误诊率为4.3%(1/23);准确性为95.2%(79/83)。2种评估方法的敏感性、准确性差异有统计学意义(P0.01)。结论 :低剂量MSCT扫描后处理技术在常规横断位图像诊断的基础上,可提高对肠梗阻的检出率和准确性,具有很好的临床增益价值。
[Abstract]:Objective: to evaluate the gain value of low dose multislice spiral CT MSCT in the diagnosis of intestinal obstruction. Methods: the imaging data of 83 patients with clinically suspected intestinal obstruction were analyzed retrospectively. The conventional transection combined with post-processing technique is the basis of two kinds of evaluation, and the diagnostic results are compared with the results of clinical diagnosis. The post-processing techniques include multiplanar reconstruction MPRP, maximum density projection (MIP), volumetric reconstruction (VRV). Results: the diagnostic sensitivity of conventional transection images was 78.3% / 60%, the missed diagnosis rate was 21.713 / 60%, the specificity was 91.3% 21 / 23%, the misdiagnosis rate was 8.7% 23 / 23; The sensitivity of the reconstruction image was 95.00.57 / 60, the missed diagnosis rate was 5.0 / 60; the specificity was 95.772 / 23, the misdiagnosis rate was 4.33 / 23; the accuracy was 95.279,833.The sensitivity of the methods was 95.279,830.The. Conclusion: Low-dose MSCT post-processing technique can improve the detection rate and accuracy of intestinal obstruction on the basis of conventional transverse image diagnosis and has good clinical gain value.
【作者单位】：浙江省金华市城北卫生院放射科;金华市中心医院放射科;
【分类号】：R816.5;R574.2

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