单个冠状动脉化斑块的度通过多检测器行计算断层扫描仪测量
Fabian Moselewski1, Christopher J O'Donnell, Stephan Achenbach
1Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Mass 02114, USA.
在个体冠状动脉斑块中的度在不同年龄和性别之间是一致的,但在个体内有所不同. 冠状动脉 (CAC) 的这种异质性可能比全球得分更好地了解斑块负担和心血管风险.
科学领域:
- 心血管成像 - 心血管成像
- 生物医学工程 生物医学工程
- 放射学 放射学是一门学科.
背景情况:
- 全球分数评估冠状动脉 (CAC) 负担.
- 单个斑块特征,如度 (CC),可能提供额外的风险分层价值.
- 了解斑块异质性对于评估心血管疾病进展和治疗有效性至关重要.
研究的目的:
- 评估个体化斑块的特征,特别是度 (CC).
- 为了研究CC和其他CT衍生的冠状动脉参数之间的关系.
- 确定CC是否在受试者之间存在差异,以及其独立于年龄和性别.
主要方法:
- 在612名来自弗雷明汉心脏研究的参与者中,使用多检测器CT分析冠状动脉 (CAC).
- 确定单个化斑块的CC,阿加斯顿分数,化体积和矿物质质量.
- 评估CC异质性使用CC的标准偏差在一个主体内的单个斑块之间.
主要成果:
- 在217名受试者 (74名女性,143名男性;平均年龄57.1岁) 中发现了956个化冠状动脉斑.
- 个体斑块CC是独立于受试者的年龄和性别.
- 在具有多个斑块的受试者中观察到CC的显著异质性,也独立于年龄,性别和斑块数量.
结论:
- 个人斑块CC是独立于年龄和性别,但显示出显著的主体内的异质性.
- 这种异质性表明,在人口统计学中形成斑块的病理过程是一致的.
- 单个斑块CC分析可以提供超出全球CAC得分的增量价值,用于评估动脉样硬化和心血管风险.
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