动态对比增强磁共振成像检查对颅内感染的诊断价值  

Value of Dynamic Contrast-Enhanced Magnetic Resonance Imaging in the Diagnosis of Intracranial Infection

作　　者：刘玉霞[1] 谢瑞峰[1] 胡延涛[1] LIU Yuxia;XIE Ruifeng;HU Yantao(Department of Radiology,Puyang People’s Hospital,Puyang 457000,China)

机构地区：[1]濮阳市人民医院放射科,河南濮阳457000

出　　处：《河南医学研究》2021年第17期3219-3222,共4页Henan Medical Research

摘　　要：目的分析动态对比增强磁共振成像(DCE-MRI)检查对不同类型颅内感染的诊断价值,评估其临床应用价值。方法选取2018年1月至2020年10月濮阳市人民医院收治的125例颅内感染患者作为研究对象,均行MRI、DCE-MRI、弥散加权成像(DWI)检查,分析不同类型颅内感染影像学特征,比较DCE-MRI、DWI检查对不同类型颅内感染的检出情况及诊断符合率。结果不同类型颅内感染的影像学特征存在一定差异。DCE-MRI检查对颅内病毒感染、化脓性细菌感染、隐球菌感染的检出率分别为78.26%(36/46)、83.78%(31/37)、71.43%(5/7),略高于DWI检查的67.39%(31/46)、67.57%(25/37)、28.57%(2/7),差异无统计学意义(P>0.05)。DCE-MRI对颅内结核分枝杆菌感染、寄生虫感染的检出率分别为86.36%(19/22)、100.00%(13/13),高于DWI检查的59.09%(13/22)、69.23(9/13),差异有统计学意义(P<0.05)。DCE-MRI检查符合率为83.20%,高于DWI的64.00%,差异有统计学意义(P<0.05),与脑脊液细菌学培养及手术病理学检查具有较好一致性。结论颅内感染可因致病因素不同而表现出不同的影像学征象。与DWI比较,DCE-MRI检查在诊断颅内感染、鉴别感染类型方面更具优势,临床应用价值较高。Objective To analyze the diagnostic value of dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI)for different types of intracranial infections,and to evaluate its clinical application value.Methods A total of 125 patients with intracranial infection admitted to Puyang People’s Hospital from January 2018 to October 2020 were selected as the research subjects,and all were examined by MRI,DCE-MRI,and diffusion-weighted imaging(DWI).Analyze the imaging characteristics of different types of intracranial infections.Compare the detection status and diagnostic coincidence rate of different types of intracranial infections by DCE-MRI and DWI.Results There were certain differences in the imaging characteristics of different types of intracranial infections.The detection rates of intracranial viral infection,pyogenic bacterial infection and cryptococcal infection by DCE-MRI were 78.26%(36/46),83.78%(31/37),and 71.43%(5/7),respectively,which were slightly higher than 67.39%(31/46),67.57%(25/37),and 28.57%(2/7)by DWI examination(P>0.05).The detection rates of intracranial Mycobacterium tuberculosis infection and parasitic infection were 86.36%(19/22)and 100.00%(13/13),respectively,which were higher than 59.09%(13/22)and 69.23(9/13)of DWI examination(P<0.05).The coincidence rate of DCE-MRI examination was 83.20%,which was higher than that of DWI(64.00%,P<0.05),and had good consistency with cerebrospinal fluid bacteriological culture and surgical pathological examination.Conclusion Intracranial infection could show different imaging signs due to different pathogenic factors.Compared with DWI,DCE-MRI examination has more advantages in diagnosing intracranial infection and identifying the type of infection,and has higher clinical application value.

关 键 词：颅内感染 动态对比增强磁共振成像 弥散加权成像 影像学特征 诊断符合率 

分 类 号：R445.2[医药卫生—影像医学与核医学]