関連する実験動画

Updated: May 1, 2026

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
08:17

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery

Published on: February 20, 2017

13.9K

左心房の拡大. 心電図の基準のエコーカルディオグラフィの評価

A D Waggoner, A V Adyanthaya, M A Quinones

    Circulation
    |October 1, 1976
    PubMed
    まとめ

    電気心臓撮影は,左心房拡大 (LAE) を検出するのに役立ちます. これは,左心房が異常に大きくなる状態です. ECGにおける特定のP波の変化は,LAEの比較的特定の指標であり,診断の正確性を向上させます.

    さらに関連する動画

    Evaluation of Left Ventricular Structure and Function using 3D Echocardiography06:34

    Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

    Published on: October 28, 2020

    4.1K
    Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging11:13

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

    Published on: May 24, 2021

    8.4K

    関連する概念動画

    Electrocardiogram01:29

    Electrocardiogram

    An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
    Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
    9.8K
    Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

    Cardiac Output I:Effect of Heart Rate on Cardiac Output

    Cardiac Output
    Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
    Effect of Heart Rate on Cardiac Output
    Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
    3.4K
    Imaging Studies for Cardiovascular System I:Echocardiography01:17

    Imaging 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,...
    1.0K
    Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

    Aortic Regurgitation II: Clinical Features and Diagnostic Tests

    Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
    1.2K
    Heart Failure IV: Classification and Diagnostic Evaluation01:30

    Heart Failure IV: Classification and Diagnostic Evaluation

    Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
    1.0K