中国医学装备2018，Vol.15Issue(5)：56-59,4.DOI:10.3969/J.ISSN.1672-8270.2018.05.016
脑发育性静脉异常在磁共振不同常规成像序列中的影像表现及其诊断价值
Image characteristics of DVA in different routine imaging sequence of MR and the diagnostic value of these different sequence
摘要
Abstract
Objective: To explore the image characteristics of developmental venous anomaly (DVA) in different routine imaging sequence of magnetic resonance (MR) and the diagnostic value of these different sequence. Methods:The imaging data of 54 patients with DVA which were confirmed by using MR enhanced scan that was the contrasted standard were selected. The imaging features obtained from the T1WI, T2WI and FLAIR sequences were researched by using retrospective analysis, and the specificity and accuracy of diagnosis of each imaging sequence were calculated. Results: In the 54 patients, the accuracy of T1WI was 75.9% (41/54), and accuracy of T2WI was 68.5% (37/54), and that of FLAIR T2was 92.6% (50/54). The performance of MRI was that many of medullary vein drained into the central venous, and the shorter draining vein showed typical phenomenon of "jellyfish head"and many medullary vein of the longer draining vein showed the phenomenon of "centipede". The abnormal blood vessel on the T1WI showed strip low signal intensity, and many abnormal blood vessel on T2WI showed strip high signal intensity and minority of them showed strip low signal intensity. The larger central vein and peripherally scattered small medullary veins could be found on the sequence scan of T2FLAIR, and many of abnormal blood vessels showed strip high signal and a small part of abnormal blood vessels showed equisignal and low signal. Besides, the specificity of the diagnosis of sequence of T2FLAIR was 100% without false positive. And the accuracy of T2FLAIR was 92.6% that was higher than 75.9% of T1WI and 68.5% of T2WI. Conclusion: The sequence technique of T2FLAIR has higher accuracy for the detection of DVA and it can clearly display most abnormal blood vessel. Therefore, it has important reference value for diagnosing DVA of brain.关键词
发育性静脉异常/磁共振成像/成像序列/诊断价值Key words
Developmental venous anomaly(DVA)/Magnetic resonance imaging(MRI)/Imaging sequence/Diagnostic value分类
医药卫生引用本文复制引用
王文杰,王文广..脑发育性静脉异常在磁共振不同常规成像序列中的影像表现及其诊断价值[J].中国医学装备,2018,15(5):56-59,4.基金项目
河北省2015年医学科学研究重点课题计划(20151013)"磁共振T2 FLAIR对脑发育性静脉异常的诊断价值" （20151013）
