轴内脑肿瘤的CT诊断和影响因素

CT Diagnosis of Intra-axial Brain Tumors and Its Influencing Factors

目的 :探讨轴内脑肿瘤的 CT诊断价值及其影响因素。方法 :回顾分析 132例轴内脑肿瘤的 CT表现 ;应用L ogistic回归对影响 CT诊断的各种因素进行分析。结果 :132例轴内脑肿瘤中 ,胶质瘤 71例 ,转移瘤 4 8例 ,髓母细胞瘤10例 ,正确诊断率分别为 83.5 % (5 9/ 71)、95 .8% (4 6 / 4 8)、90 % (9/ 10 ) ;其它肿瘤 3例。经 L ogistic回归分析 ,患者年龄、病灶位置、灶内出血、灶周水肿、占位效应、强化程度、图像质量为轴内脑肿瘤 CT诊断的影响因素。结论 :轴内脑肿瘤的CT正确诊断与病变的 CT特征、患者年龄与图像质量密切相关 ,CT扫描可确诊大多数轴内脑肿瘤。

Objective:To probe into the diagnostic significance of CT in intra-axial brain tumors and various influencing factors.Methods:CT findings of 132 patients with pathologically proved intra-axial brain tumors were retrospectively analyzed,and the influencing factors of the diagnosis of intra-axial brain tumors with CT scan were analysed with logistic regression. Results:Of 132 patients with intra-axial brain tumors, 71 were gliomas, 48 were metastatic tumors, 10 were medulloblastomas.A correct diagnosis ratio was reached 83.5%(59/71)、95.8%(46/48)、90%(9/10), respectively; 3 were other kinds of brain tumors. Age of patient,location of tumors,intratumoral hemorrhages,perifocal edema,mass effect,degree of enhancement and quality of CT images were the influencing factors of the diagnosis of intra-axial brain tumors with CT.Conclusion:In most cases, the correct diagnosis of intra-axial brain tumors can be made by CT scans;Characteristic of tumors on CT images,age of patients and quality of CT images are closely relevant to the correct diagnosis of intra-axial brain tumors with CT scan.