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相关概念视频

Assessment of the Cardiovascular System III: Palpation01:27

Assessment of the Cardiovascular System III: Palpation

Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...

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相关实验视频

Updated: Jul 13, 2026

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
11:50

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart

Published on: July 9, 2010

使用心肌性能指数评估大动脉转移患者的全身右心室功能的评估:与心磁共振成像相比较.

Omid Salehian1, Markus Schwerzmann, Naeem Merchant

  • 1Toronto Congenital Cardiac Center for Adults and Echocardiographic Laboratory, Division of Cardiology, Department of Medicine, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada.

Circulation
|November 10, 2004
PubMed
概括

心肌功能指数 (MPI) 准确地评估了大动脉转移 (TGA) 患者的全身右心室 (RV) 功能. 这种简单的心声回声学方法估计了可与心磁共振 (CMR) 相比的射出分数 (EF).

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Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking
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Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking

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相关实验视频

Last Updated: Jul 13, 2026

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
11:50

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart

Published on: July 9, 2010

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07:21

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Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
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科学领域:

  • 心脏病学 心脏病学
  • 儿童心脏病学 儿童心脏病学
  • 心声回声扫描 (Echocardiography) 是一种心声回声扫描.

背景情况:

  • 系统右心室 (RV) 功能评估对于大动脉转移 (TGA) 患者管理至关重要.
  • 心声谱为VR功能提供了有限的准确性,而心磁共振 (CMR) 是黄金标准,但成本昂贵且难以获得.
  • 心肌性能指数 (MPI) 显示了评估RV功能障碍的潜力.

研究的目的:

  • 为了比较MPI与CMR在评估TGA患者系统RV功能的准确性.
  • 为了确定MPI是否可以作为一个可靠的,可访问的替代CMR的RV功能评估在这个人群.

主要方法:

  • 从TGA患者的数据的回顾性审查,这些患者在六个月间隔内接受了CMR和心声回声学.
  • 通过CMR和系统RV MPI对系统RV喷射分数 (RVEF) 的分析.
  • 在MPI和RVEF之间进行统计相关性分析.

主要成果:

  • 通过CMR测量的系统RVMPI和系统RVEF之间观察到强烈的负相关性 (r=-0.82,P<0.01).
  • 该研究建立了一个公式来从MPI估计RVEF:RVEF=65%-(45.2xMPI).

结论:

  • MPI是评估TGA患者全球系统性RV功能的一个有价值的工具.
  • MPI可以准确估计弹射分数,为CMR提供了一个实用的替代方案.