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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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冠状动脉化的种族差异:动脉样硬化多民族研究 (MESA)

Diane E Bild1, Robert Detrano, Do Peterson

  • 1Division of Epidemiology and Clinical Applications, National Heart, Lung, and Blood Institute, Bethesda, Md, USA. bildd@nhlbi.nih.gov

Circulation
|March 17, 2005
PubMed
概括

冠状动脉化患病率和数量在美国各族群之间有很大差异,即使考虑到风险因素. 需要进一步的研究来了解动脉样硬化的这些种族差异.

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科学领域:

  • 心血管疾病流行病学
  • 动脉样硬化的研究研究.
  • 医学成像在心脏病学中的医学成像.

背景情况:

  • 冠状动脉化是冠状动脉样硬化的关键指标.
  • 以前的研究表明,与黑人相比,美国白人冠状动脉化程度更高.
  • 缺乏大规模的人口研究,比较不同美国族群的冠状动脉化.

研究的目的:

  • 为了比较美国主要族群中冠状动脉化的流行率和数量.
  • 调查传统的心血管风险因素是否解释冠状动脉化的种族差异.
  • 建立未来关于动脉样硬化的种族差异研究的基准.

主要方法:

  • 使用计算机断层扫描 (CT) 来测量冠状动脉化 (阿加斯顿分数).
  • 在多民族动脉样硬化研究 (MESA) 中分析了6814名参与者 (45-84岁) 的数据.
  • 包括白人,黑人,西班牙裔和中国男性和女性,没有先前的临床心血管疾病.

主要成果:

  • 冠状动脉化的患病率在白人男性 (70.4%) 和女性 (44.6%) 中最高.
  • 调整后的分析显示,与白人相比,黑人,西班牙裔和中国人的冠状动脉化的相对风险较低.
  • 白人表现出最多的冠状动脉化,其次是中国人,西班牙裔和黑人.

结论:

  • 在冠状动脉化的存在和程度上存在显著的种族差异.
  • 这些差异并不能完全由常见的冠状动脉风险因素来解释.
  • 需要进一步研究冠状动脉的潜在机制和跨种族群体的预测价值.