缩加速时间作为外周动脉疾病中血液动力学严重性的指标
Anne-Kathrin Tolke1, Bettina-Maria Taute1
1Department of Internal Medicine III, Cardiology, Angiology and Intensive Care Medicine, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
VASA. Zeitschrift fur Gefasskrankheiten
|August 28, 2025
概括
静脉加速时间 (AT) 和一个新的参数,AT (DAT) 的绝对差值,有效地诊断外周动脉疾病 (PAD),即使有中枢动脉化. 这些方法提供了可靠的替代品,当脚-指数 (ABI) 受到损害时.
科学领域:
- 血管医学
- 诊断超声波
- 医学成像分析
背景情况:
- 脚指数 (ABI) 是对周围动脉疾病 (PAD) 的标准诊断.
- 中枢动脉化 (MAC) 可能导致不准确,升高的ABI读数.
- MAC对缩加速时间 (AT) 等替代诊断方法的影响尚不清楚.
研究的目的:
- 评估系统加速时间 (AT) 作为PAD的诊断工具.
- 为了确定中枢动脉化是否会影响AT测量.
- 引入和验证一个新的参数,即AT (DAT) 的绝对差值,用于PAD评估.
主要方法:
- 包括健康受试者,MAC患者和PAD患者 (有/没有MAC) 在内的238名参与者的前性研究.
- 使用连续波多普勒超声波计算ABI.
- 通过彩色编码的双重超声波测量关动脉和关动脉的缩动脉.
- 为了减轻心脏影响,引入了DAT (胸部AT和手臂AT之间的绝对差异).
主要成果:
- 中枢动脉化 (MAC) 并没有显著影响缩加速时间 (AT) 值 (p > .05).
- 使用AT诊断PAD:灵敏度为85%,特异性为87%的AT>95ms.
- 使用DAT诊断PAD:灵敏度为82%,特异性为84%,DAT>20毫秒.
结论:
- 静脉加速时间 (AT) 是诊断PAD的可靠参数,不受中枢动脉化 (MAC) 的影响.
- 在MAC的存在下,AT (DAT) 参数的新绝对差值也有效量化了PAD严重程度.
- 当ABI受到MAC影响时,AT和DAT都为PAD诊断和评估提供了ABI的有价值,可靠的替代方案.
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