摘要
目的 探讨多层CT（MSCT）5 min延迟期扫描对颅内结核病灶显示的优势.方法 收集山东胸科医院2010年1月至2013年1 1月接受CT平扫及增强扫描并经临床资料证实的颅内结核患者30例,其中男19例,女11例,年龄10 ～58岁,平均29.3岁,所有病例均符合颅内结核的临床诊断标准.采用16层螺旋CT先常规平扫后行双期扫描,动脉期注入对比剂25 s后扫描,延迟5 min后再次扫描.对两期图像显示颅内结核病灶的能力进行评价.将影像资料上的动脉期与延迟期隐去,进行盲法评分,用SPSS 13.0软件进行t检验.结果 30例526个病灶中,结核性脑膜炎导致的脑膜增厚,无论是基底池脑膜,还是软脑膜和室管膜的增厚,延迟5 min扫描的病灶大小和病灶边缘的显示度均优于动脉期图像（P＜0.01）;脑膜结核瘤及脑实质结核瘤病灶大小和边缘的显示延迟5 min扫描图像均优于动脉期图像（P＜0.01）;对于脑沟内血管断面和结核结节的区分,延迟5 min扫描图像亦优于动脉期图像（P＜0.01）.结论 延迟5 min扫描对颅内结核病灶的显示具有优势.
Objective To study the advantages of delayed phase scan at 5 minutes using multi-slice Computed Tomography （CT） for the diagnosis of intracranial tuberculosis.Methods Conventional non-contrast and dual-phase contrast enhancement were performed using 16-slice spiral CT for brain scanning.Arterial phase was performed 25 seconds after the injection of contrast agent,and the delayed phase was performed at 5 minutes.Then the ability of two phase images in intracranial tuberculosis displaying was evaluated.Results A total of 526 lesions in 30 patients were found.Delayed phase scan was superior to arterial phase in the ability of displaying the thickening of meninges,either basal cistern,pia mater or ependymal （P 〈 0.01）.The demonstration of lesion size and margins of tuberculoma was also better in delayed phase scan （P 〈 0.01）.The delayed phase scan was significantly better in distinguishing lesions and adjacent vascular sections in the sulcus （P 〈 0.01）.Conclusion The delayed phase scan has obvious advantages in the display of intracranial tuberculosis.
出处
《中华结核和呼吸杂志》
CAS
CSCD
北大核心
2015年第11期810-814,共5页
Chinese Journal of Tuberculosis and Respiratory Diseases
关键词
体层摄影术
X线计算机
结核
脑
Tomography,X-ray computed
Tuberculosis
Brain
