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DWI对急性脑梗死的诊断价值分析

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摘要 目的探讨磁共振弥散加权成像(DWI)对急性脑梗死的临床诊断价值和确定DWI在区分常规MRI上所示的多发梗死灶中急性和非急性梗死方面的能力。方法对68例确诊为脑梗死的患者经颅脑CT、常规MRI及DWI检查后,进行影像学的图像特征分析,重点分析信号强度和病灶大小。患者均采用统一的治疗方法。结果DWI对超急性及急性脑梗死可显示CT、常规MRI不能显示的病灶,并随时间延长显影范围逐渐增大。在常规MRI可显示的病灶中,DWI可更清楚、更全面地显示病灶,且病灶范围更大。亚急性期及慢性期DWI影像逐渐改变成等信号、混杂信号,部分为囊性信号,且不易显示病灶。结论DWI诊断超早期脑梗死比CT、常规MRI有明显优势。
出处 《中国厂矿医学》 2009年第5期595-596,共2页 Chinese Medicine of Factory and Mine
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