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Related Concept Videos

Heart Sounds01:15

Heart Sounds

Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V) valves at the...
Assessment of the Cardiovascular System IV: Auscultation01:25

Assessment of the Cardiovascular System IV: Auscultation

Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
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, evaluates...
Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging 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...
Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:

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Related Experiment Video

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In Silico Clinical Trials for Cardiovascular Disease
09:09

In Silico Clinical Trials for Cardiovascular Disease

Published on: May 27, 2022

Multi-center, multi-topic heart sound databases and their applications.

Meilan Xie1, Shouzhong Xiao, Tianhu Liu

  • 1Bioengineering College, Chongqing University, Chongqing, China.

Journal of Medical Systems
|August 13, 2010
PubMed
Summary

This study introduces a large, shared heart sound database from over 9,000 samples. This resource supports diverse research, including cardiac safety and reserve evaluations across various populations.

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Murine Echocardiography and Ultrasound Imaging
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Murine Echocardiography and Ultrasound Imaging

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Pipeline for Multi-Scale Three-Dimensional Anatomic Study of the Human Heart
04:22

Pipeline for Multi-Scale Three-Dimensional Anatomic Study of the Human Heart

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Murine Echocardiography and Ultrasound Imaging
09:00

Murine Echocardiography and Ultrasound Imaging

Published on: August 8, 2010

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Data Science

Background:

  • Heart sound analysis is crucial for diagnosing cardiovascular conditions.
  • Existing heart sound datasets are often limited in size and scope.
  • A comprehensive, multi-center resource is needed for advanced research.

Purpose of the Study:

  • To describe a novel, large-scale, multi-center heart sound database.
  • To facilitate diverse cardiovascular research through data sharing.
  • To enable advanced analysis of heart sounds for various applications.

Main Methods:

  • Collected over 9,000 heart sound samples in WAV format.
  • Organized samples into topic-specific databases across multiple research centers.
  • Centralized pooled data for comprehensive analysis.

Main Results:

  • Established a substantial, multi-topic heart sound resource.
  • Data is structured for easy retrieval and analysis by research topic.
  • The database supports a wide range of applications.

Conclusions:

  • The developed heart sound database is a valuable asset for cardiovascular research.
  • Facilitates studies on cardiac safety, reserve, and novel diagnostic methods.
  • Promotes collaborative research across multiple institutions.