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相关实验视频

Updated: Jul 12, 2025

Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography
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通过新的Tei'-Index评估右心室透气功能的可行性研究.

Yicen Zhang1, Guotong Sun2,3, Wenyuan Zhu2

  • 1Department of Cardiology, Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao, 266071, China.

Heliyon
|October 23, 2023
PubMed
概括

一个新的Tei'-index有效地评估了右心室扩张性功能障碍. 这一指数与标准的Tei-index不同,它显示了孤立的透静功能障碍患者的显著变化,有助于早期检测.

关键词:
心声回声扫描 (Echocardiography) 是一种心声回声扫描.孤立的透析功能障碍 孤立的透析功能障碍心肌功能指数 (Tei-index) 是指心肌功能指数.右心室功能的功能

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Last Updated: Jul 12, 2025

Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography
10:33

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Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats
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Evaluation of Right Ventricular Function in Experimental Models of Pulmonary Arterial Hypertension
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Evaluation of Right Ventricular Function in Experimental Models of Pulmonary Arterial Hypertension

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110

科学领域:

  • 心脏病学 心脏病学
  • 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
  • 腹腔病理学 腹腔病理学 腹腔病学

背景情况:

  • 心肌性能指数 (Tei) 用于右心室 (RV) 功能评估,但其在隔离的腹功能障碍 (IDD) 中的实用性有限.
  • 评估RV透缩功能,特别是在早期,需要敏感和特定的非侵入性标记.

研究的目的:

  • 开发和验证一种新型的Tei'-index,用于评估右心室的隔离扩张功能障碍 (IDD).
  • 为了确定新的Tei'-index是否比常规的Tei-index更灵敏地检测早期的RV扩张功能障碍.

主要方法:

  • 与Tei和Tei的指数进行比较,包括21名RV放松功能受损的患者和44名对照患者的同体积度放松时间 (IRT),同体积度收缩时间 (ICT),喷射时间 (ET) 和RV快速填充时间 (RFT).
  • 从RV输出流和三管输入流速档案中测量了多普勒衍生参数.

主要成果:

  • 传统的TEI指数显示,两组之间没有显著差异 (0.21±0.08对比0.23±0.07,PNS).
  • 在IDD组中,新的Tei'-index显著缩短 (0.24 ± 0.09对比0.32 ± 0.12,p<0.05),归因于长时间的IRT和RFT,并缩短了ICT.
  • 一个Tei'-index截止值≥0.31确定了受损的RV放松,具有50%的灵敏度和86%的特异性,与其他扩张性参数 (E/A,E/e',DT) 相对应良好.

结论:

  • 新的Tei'-index对于评估早期的右心室扩张功能障碍具有高度有效性和特异性.
  • "Tei"指数可以作为一种有价值的非侵入性指标,用于在临床实践中检测隔离的扩张功能障碍 (IDD).