在患有缺血性心脏病的患者中,回声心脏图,心脏输出和异常收缩的部分之间的关系
Circulation
|October 11, 1975
概括
心声学可靠地测量了冠状动脉疾病患者的左心室末端透静体积. 然而,末缩体积估计不那么准确,但回声和菲克脉冲体积之间的差异可以估计异常的细分尺寸.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 生物医学工程 生物医学工程
背景情况:
- 冠状动脉疾病 (CAD) 通常导致左心室段异常收缩.
- 精确评估左心室体积和功能对于管理CAD至关重要.
- 心声谱是一种非侵入性工具,但其在患病心脏中量化心室体积的准确性需要验证.
研究的目的:
- 在患有CAD的患者中,比较从心声学中获得的左心室体积与双平面血管学测量.
- 评估回声心脏学方法在估计异常收缩段 (ACS) 的百分比方面的准确性.
- 确定心声回声能否可靠地评估在区域壁运动异常存在的情况下左心室功能.
主要方法:
- 24名患有已证实CAD和异常墙壁运动的患者接受了心声回声和双平面左心室图.
- 使用心声学维度 (立方体函数和回归方程) 计算左心室末端透缩和末端静缩体积,并与血管学数据进行比较.
- 异常收缩部分 (ACS) 的百分比是从血管心电图中确定的.
- 来自心声回声和Fick技术的中风体积与评估ACS进行了比较.
主要成果:
- 心声扫描显示,对终端透缩体积 (r=0.865) 的双平面血管扫描有很强的相关性.
- 末缩体积的相关性不那么强 (r=0.7063).
- 超声心电图和Fick中风体积之间的差异与ACS百分比 (r=0.8967) 相对相关,允许其估计.
结论:
- 心声图提供了可靠的测量左心室终端透支体积在区域功能障碍的CAD患者.
- 对末缩体积的回声心脏学估计不那么准确.
- 除了额头上或心室动脉瘤外,脑卒中体积测量的差异可以估计异常收缩的片段的大小.
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