40例儿童后颅凹肿瘤CT扫描结果分析

目的 :本文分析儿童后颅凹肿瘤CT检查的影像学特点、误诊原因 ,研究其扫描方法 ,提高CT检查准确性。材料与方法 :收集我院儿童后颅凹肿瘤 4 0例 ,其中普通CT扫描 2 0例 ,螺旋CT扫描 2 0例 ,4 0例病人中 32例行CT强化扫描。将其术前CT检查结果与手术后病理结果对照分析研究。结果 :4 0例儿童后颅凹常见肿瘤CT检查阳性显示为 38例 ,漏诊 2例 ,显示率为 97 5 %。术前CT检查定性误诊 11例 ,准确率为72 5 %。讨论 :分析 11例误诊 2例漏诊原因 ,对照研究普通CT与螺旋CT的影像特点 ,选择适合的CT扫描技术与方法 ,消除儿童后颅凹骨迹伪影等干扰的影响 ,提高儿童后颅凹肿瘤诊断的准确性 ,更好地为临床服务

Analysis of CT scanning to posterior cranial fossa tumor in 40 children

objective In order to analyze the causes of the evaded diagnoeie of tumors in the midline region of children's posterior cranial fossa from CT and improve the diagnostic accuracy of the tumors Methods Forty cases of tumors in the midline region of children's posterior cranial fossa,CT plain scan was 20 cases,spiral CT scan was 20 cases Enhanced scan was used in 32 cases from 40 cases The imaging diagnosis were thom compared with the of operation and pathology Results:The CT positive rate(there are 38 cases in the 40 cases) for displaying these common tumors in the midline region of chidren's posterior cranial fossa were 97.5%,the evaded diagnosis was 2cases.The accuracy rate of CT diagnosis was 72.5% bat 11 cases were misdiagnosed in pre-operation.conclusin:To choose CT or spiral CT,no interference of bony artifact of posterior cranial fossa,improve the diagnostic accuracy of common tumors in the midline region of children posterior cranial fossa,and provide more information to the clinics.