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磁共振成像评价兔早期动脉粥样硬化斑块的表现与病理学的相关性

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摘要 目的探讨磁共振成像(MRI)在识别兔动脉粥样硬化斑块中的诊断价值。方法 16只新西兰白兔,随机设置模型组8只,正常组8只,在建模后1、2、3、4个月分别行高分辨MRI。通过测量腹主动脉管壁厚度和面积、管腔面积、管壁信号增强程度等指标,观察腹主动脉壁的重构过程,并对模型最终的斑块成分进行MRI和组织病理结果对照研究。结果 MRI显示,模型组腹主动脉管壁厚度和面积逐渐增加,且与同期正常组相比差异均有统计学意义(P<0.05);模型组腹主动脉管腔进行性扩张,管壁强化程度较对照组增加明显,但演变过程不明显。另外,MRI对兔腹主动脉脂质斑块及纤维斑块的检出率与病理学对比无统计学差异(P<0.05)。结论高分辨MRI可以无创性地观察动脉粥样硬化动物模型腹主动脉管壁重构的演变过程,有助于对动脉硬化斑块的预后和药物干预进行探索。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第22期6347-6349,共3页 Chinese Journal of Gerontology
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