探索表心脂肪和冠状动脉斑块负担和特征之间的关系:心脏CT成像的见解
Venkat Sanjay Manubolu1, Julia Ying Lu2, Brian Montano1
1Lundquist Institute, Harbor UCLA Medical Center, Torrance, CA, 90502, USA.
The international journal of cardiovascular imaging
|July 15, 2024
概括
较低的上心脂肪组织 (EAT) 密度,表明炎症,与冠状动脉疾病 (CAD) 患者的纤维脂肪斑有关. EAT密度,而不是体积,可能有助于评估心血管风险.
科学领域:
- 心脏病学 心脏病学
- 放射学 放射学是一门学科.
- 炎症研究 炎症研究
背景情况:
- 副心脏脂肪组织 (EAT) 与冠状动脉疾病 (CAD) 风险有关.
- EAT密度作为组织内局部炎症的标志物.
研究的目的:
- 在稳定的CAD患者中,研究EAT密度和体积与冠状动脉斑块特征之间的关联.
- 为了确定通过密度评估的EAT质量是否能预测动脉样硬化斑块组成.
主要方法:
- 123名稳定的CAD患者接受了冠状动脉评分和CT血管造影.
- 半自动软件分析了冠状动脉斑块的特征.
- 没有对比的CT量化了EAT密度 (HU) 和体积 (cc).
- 多变量回归模型评估了EAT指标和斑块类型之间的关联.
主要成果:
- 平均EAT密度为-77.2±4.6 HU,平均EAT体积为118.5±41.2 cc.
- 调整后的分析显示,EAT密度与纤维脂肪 (FF) 斑块 (p<0.03) 有显著的关联.
- EAT密度的1 HU增加与FF斑块的7%增加相关.
- 在EAT体积和任何斑块类型之间没有发现显著的关联.
结论:
- 由较低密度表示的炎症性EAT可能会促进冠状动脉样硬化.
- 对EAT密度的非对比心脏CT评估为增强心血管风险分层提供了一个潜在的工具.
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