磁敏感序列分析和常规MRI检查对脑血管淀粉样变脑出血诊断价值比较

发布时间：2018-04-01 13:18

本文选题：脑淀粉样血管病　切入点：脑出血　出处：《吉林大学学报(医学版)》2017年05期

【摘要】：目的:分析脑血管淀粉样变脑出血(CAAH)患者磁敏感序列分析(SWI)检查特征,阐明SWI在CAAH诊断中的临床价值。方法:选择68例临床诊断怀疑CAAH的患者,均予以常规磁共振成像(MRI)和SWI检查,比较2种影像学检查对怀疑CAAH患者出血病灶检出率的差异,分析2种影像学检查对CAAH检出情况一致性。应用多因素Logistic回归分析术前SWI的影像学特征与患者发生病灶出血的危险性。结果:经病理检查确诊为CAAH 61例,常规MRI序列检出CAAH病灶53个,检出率为86.89%;SWI序列检出CAAH出血病灶59个,检出率为96.72%,SWI显示出血灶数目明显多于常规MRI序列,2种影像学方法对CAAH病灶检出率比较差异有统计学意义(P0.05)。SWI序列对CAAH患者的检出情况与MRI序列检出一致性较差,Kappa=0.366 6。多因素Logistic回归分析,斑片状高信号、多发边缘清低信号区是CAAH的相关性特征(OR=3.895,P=0.025;OR=3.124,P=0.029)。结论:SWI能有效检出CAAH出血病灶,且诊断价值优于常规MRI检查。
[Abstract]:Objective: to analyze the features of magnetic sensitive sequence analysis (SWI) in the diagnosis of cerebral amyloidosis cerebral hemorrhage (CAAH), and to clarify the clinical value of SWI in the diagnosis of CAAH. Methods: 68 patients suspected of CAAH were selected. All patients were examined with conventional MRI and SWI, and the difference of the detection rate between the two imaging examinations in patients with suspected CAAH was compared. To analyze the consistency of two kinds of imaging examination in detecting CAAH. Using multivariate Logistic regression analysis, the imaging features of SWI and the risk of lesion hemorrhage were analyzed. Results: 61 cases of CAAH were confirmed by pathological examination. 53 lesions of CAAH were detected by routine MRI sequence, and 59 lesions of CAAH were detected by routine MRI sequence. The detection rate was 96.72% and the number of bleeding foci was significantly higher than that of conventional MRI sequence. There was a significant difference in the detection rate of CAAH lesions between the two imaging methods. There was a significant difference between the detection rate of CAAH by SPI sequence and that by MRI sequence. There was a poor consistency between the detection rate of CAAH and MRI sequence (P < 0.05) and that of MRI sequence (0.366 6). Multivariate Logistic regression analysis, The correlation feature of CAAH is high signal intensity and low signal intensity in multiple marginal areas. Conclusion CAAH haemorrhage lesions can be detected effectively by CAAH and the diagnostic value is superior to that of conventional MRI. [WT5HZ] [WT5HZ] [WT5BZ] [WT5BZ] [WT5BZ] the characteristics of CAAH are 3.895%, 3.124%, 3.124% and 3.124%, respectively.
【作者单位】：南华大学附属第一医院放射科;南华大学附属第一医院神经内科;
【基金】：湖南省教育厅科学研究重点项目资助课题(14A126) 湖南省衡阳市科技局科学技术发展计划项目资助课题(2015KJ40)
【分类号】：R445.2;R743.34

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