通过声学定量回声心脏图像和电影磁共振成像来评估右心室缩功能的区域差异
T Geva1, A J Powell, E C Crawford
1Department of Cardiology, Children's Hospital, Harvard Medical School, Boston, Mass 02115, USA. gevavt@a1.tch.harvard.edu
Circulation
|August 26, 1998
概括
右心室 (RV) 有明显的鼻腔和内膜组成部分. RV鼻对中风体积的贡献更大,并且显示出比infundibulum更大的缩短,具有类似于围静脉的收缩模式.
科学领域:
- 心脏病学 心脏病学
- 身体生理学 身体生理学
- 医疗成像医学成像
背景情况:
- 由于复杂的几何形状,对右心室 (RV) 功能评估具有挑战性.
- 现有研究通常将RV视为单个腔室,忽视其独特的组件.
研究的目的:
- 量化RV鼻腔和infundibulum的体积和缩功能.
- 分析这些RV组件的时间收缩和放松模式.
主要方法:
- 声学定量回声心脏学和声心脏学.
- 电影磁共振成像 (MRI) 用于全球和区域的RV体积和弹射分数.
主要成果:
- 静脉回路鼻包括81%的末端透缩体积和87%的中风体积.
- 与infundibulum相比,RV鼻腔表现出明显更大的射出分数和分数面积变化.
- 在RV鼻腔后,体收缩,这表明一种类似于围静的机制.
结论:
- 在体积贡献,收缩性和激活序列方面,RV鼻腔和infundibulum之间存在显著的区域差异.
- 这些在健康个体中的发现为未来关于疾病中RV功能障碍的研究提供了基线.
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...