通过多普勒回声心脏成像进行心肌肌脉应变. 验证一种新的方法来量化区域心肌功能
S Urheim1, T Edvardsen, H Torp
1Institute for Surgical Research and The Department of Cardiology, Rikshospitalet, University of Oslo, Norway.
Circulation
|September 7, 2000
概括
多普勒回声心脏成像可以测量心肌应变,反映区域心肌功能. 这种方法是负载依赖的,但与其他技术相比,绑定的影响较小.
科学领域:
- 心血管成像 - 心血管成像
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
- 心肌机械学 心肌机械学
背景情况:
- 心肌应变量测量了区域性心肌变形 (缩短/延长).
- 精确测量心肌张力对于评估心脏功能至关重要.
研究的目的:
- 为了研究多普勒回声心脏学测量心肌张力的能力.
- 为了验证多普勒衍生菌株与声微米测对比,一个参考方法.
主要方法:
- 用狗的多普勒回声心脏成像测量的心肌纵向应变.
- 与分段长度变化的声微米测量测量进行比较.
- 诱导区域性心肌缺血和预负荷的改变.
主要成果:
- 来自多普勒的心肌菌株与声微量测 (r=0.92) 显示出强烈的相关性.
- 皮缺血诱导的动力障碍运动 (正应变) 和负多普勒速度.
- 体积加载显著增加了多普勒衍生的应变和速度.
结论:
- 多普勒回声心脏学提供了一种新的,强大的方法来量化区域心肌功能.
- 与多普勒组织成像相比,这种技术对绑定效应的敏感性较小.
- 心肌张力,就像速度一样,受到负载条件的显著影响.
相关概念视频
01:17Imaging Studies for Cardiovascular System I:Echocardiography
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
01:20Imaging Studies for Cardiovascular System II:Types of Echocardiography
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...