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Updated: Dec 24, 2025

Semi-automated Optical Heartbeat Analysis of Small Hearts
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Published on: September 16, 2009

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心臓機能のビート・トゥ・ビート評価のためのビデオベースのAI

David Ouyang1, Bryan He2, Amirata Ghorbani3

  • 1Department of Medicine, Stanford University, Stanford, CA, USA. ouyangd@stanford.edu.

Nature
|April 10, 2020
PubMed
まとめ

新しいディープラーニングアルゴリズムであるEchoNet-Dynamicは エコーカルジオグラムのビデオから 心臓の機能を正確に評価し 射出分数の推定や 心筋病変の分類などの重要なタスクで 人間の専門家を上回っています

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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...
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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.
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Assessment of apical radial pulse

Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
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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.
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