核磁共振及X线计算机断层成像对颅内结核诊断价值的比较  

MRI and CT comparative analysis of intracranial tubercular nodus

作　　者：赵博[1] 韩悦[1] 杨连海[1] 张业荣[1] 高海涛[1] 

机构地区：[1]天津医科大学第二医院核磁室,天津300211

出　　处：《临床荟萃》2009年第17期1492-1494,共3页Clinical Focus

摘　　要：目的探讨MRI、CT检查对颅内结核诊断的优势与限度。方法36例经临床确诊的颅内结核患者,CT平扫36例,强化扫描33例,MRI平扫26例,强化扫描22例。对比两种影像学检查方法对颅内结核各种病变的检出效果及各自优势。结果CT及MRI检查对颅内病变检出率差异无统计学意义(P>0.05),但MRI强化扫描对于脑底池病变、脑梗死及异常脑膜强化的检出率均比CT强化扫描高(P<0.05)。而CT则可发现颅内异常钙化。结论MRI可以提高对于脑底池病变、脑梗死及异常脑膜强化的检出效果。CT检查则对钙化显示清晰。Objective To evaluate CT and MRI in diagnosis of intracranial tubercular nodus.Methods Thirty-six patients with clinically and pathological proved intracranial tubercular nodus were studied.For the patients,36 were examined with plain CT and 33 with contrast enhanced CT.And 26 were examined with MRI and 22 with Gd-DTPA contrast enhanced.Results CT and enhanced MRI both have a high sensitivity.MRI is good for cisternal obliteration and meningeal abnormal enhancement,cranial vascular and nerve complication(P<0.05).CT has a high sensitivity for abnormal intracranial calcification.Conclusion Intracranial tubercular nodus has different imaging features according to their different pathological period.MRI is good for the skull disease,the cerebral infarction and the enhancement of meninges but CT is good for calcification.

关 键 词：结核 脑膜 体层摄影术 X线计算机 磁共振成像 

分 类 号：R529.3[医药卫生—内科学] R445[医药卫生—临床医学]