20例颅内结核的MRI诊断

MRI Diagnosis of Intracranial Tuberculosis

目的:探讨颅内结核的MRI表现特征及其诊断价值。方法:对20例经临床及手术病理证实的颅内结核的MRI表现进行回顾性分析总结。每例患者行MRIT1加权像、T2加权像及增强T1WI像。结果:单纯结核性脑膜炎4例,脑实质结核8例,结核性脑膜炎合并脑实质结核8例。结论:MRI检查可为颅内结核的MRI诊断提供定位、定性诊断依据。且增强MRI检查对颅内结核的敏感性、准确性、特异性又明显高于MRI平扫。

Objective： To investigate the MR Imaging characteristics and the diagnosis value of intracranial tuberculosis. Methods： The MRI features of 20 intracranial tuberculosis cases confirmed with pathologically and surgically were retrospectively analysed. Every case was imaged by T1WI、T2WI and contrast enhanced T1WI of MRI. Results： 4 cases with simple tuberculous meningitis. 8 cases with parenchymatous tuberculosis. 8 cases with simple tuberculous meningitis and parenchymatous tuberculosis. Conclusion： MR examination can display the image characteristics of intracranial tuberculosis and provide the basis of the location and the quality. And the contrast enhanced T1WI of MRI is more sensitive, accurate and special than non - contrast enhanced T1WI in intracranial tuberculosis.