摘要
目的：探讨3.0T MR机的弥散加权-平面回波成像（DW-EPI）对急性脑出血（AIH）的诊断价值。材料和方法：回顾性分析29例经临床确诊的AIH患者的MRI和CT图像，MRI和CT在发病后24h~1周内完成，MRI包括DW-EPI及常规MRI序列，其中13例加扫了GRE-T2WI。分析并比较B0（b=0s/mm2）、B1000（b=1000s/mm2）、CT及GRE-T2WI诊断AIH的阳性结果。结果：25例脑实质出血患者中，B0、B1000、CT的阳性显示率分别为96%（24例）、84%（21例）、76%（19例），7例蛛网膜下腔出血（包括3例脑实质出血破入脑室）的阳性显示率分别为100%（7例）、57%（4例）、86%（6例）。13例AIH的GRE-T2WI 序列均显示为阳性结果。统计学结果显示B0、B1000及CT对AIH的显示能力差异无显著性。结论：3.0T DW-EPI序列是诊断AIH的有效方法之一，可以取代CT。
Abstract
Objective: To study the value of diffusion-weighted echo-planar imaging(DW-EPI) of 3.0T MRI on acute intracranial hemorrhage(AIH). Materials and Methods: MRI and CT materials of 29 cases with AIH were reviewed. MRI and CT were performed 24hrs to one week within symptom onset included DW-EPI, routine conventional MR series and axial CT scan. GRE-T2WI was performed on 13 cases of 29 cases. Images of B0(b=0s/mm2), B1000(b=1000s/mm2), CT and GRE-T2WI series were analysed. Results: There were 24(96%), 21(84%), 19(76%) cases that showed positive appearance by B0, B1000 and CT in 25 cases with intraparenchymal hemorrhage, respectively. Seven(100%), 4(57%), 6(86%) cases were detected by B0, B1000 and CT in 7 cases with subarachnoid hemorrhage which involved 3 cases of intraparenchymal hemorrhage associated with intra-ventricular involvement, respectively. All 13 cases with GRE-T2WI got positive outcomes. The ability of detection of AIH with B0, B1000 and CT have no significant difference, statistically. Conclusions: DW-EPI is one of the effective imaging sequences in the diagnosis of AIH and may replace CT scans.
关键词
脑出血 /
磁共振成像 /
弥散
Key words
Cerebral hemorrhage /
Diffusion magnetic resonance imaging
张 芳;高树明;胡淼淼;李大胜;顾金祥;刘 欣.
3.0T DWI对急性脑出血的诊断价值[J]. 中国临床医学影像杂志. 2008, 19(7): 463-465
ZHANG Fang;GAO Shu-ming;HU Miao-miao;LI Da-sheng;GU Jin-xiang;LIU Xin.
Detection of acute intracranial hemorrhage with diffusion-weighted echo-planar sequences on 3.0T MRI[J]. Journal of China Clinic Medical Imaging. 2008, 19(7): 463-465
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