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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
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Related Experiment Video

Updated: Aug 9, 2025

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
06:16

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease

Published on: August 9, 2024

479

Identification of Coronary Artery Diseases Using Photoplethysmography Signals and Practical Feature Selection

Amjed S Al Fahoum1, Ansam Omar Abu Al-Haija1,2, Hussam A Alshraideh2

  • 1Biomedical Systems and Informatics Engineering Department, Yarmouk University, Irbid 21163, Jordan.

Bioengineering (Basel, Switzerland)
|February 25, 2023
PubMed
Summary

Photoplethysmography (PPG) offers a low-cost, non-invasive method for detecting cardiovascular diseases. This study successfully used PPG signals and feature selection to classify heart conditions with high accuracy.

Keywords:
PPG signalsbiomedical analysisbiomedical signal processingcardiorespiratory functiondetection applicationsfeature combination

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Research
  • Signal Processing

Background:

  • Coronary Artery Diseases (CADs) necessitate accessible, non-invasive screening tools.
  • Photoplethysmography (PPG) is a low-cost optical technology that measures blood volume changes.
  • PPG signals hold potential for identifying cardiovascular system anomalies.

Purpose of the Study:

  • To develop and evaluate a method for identifying cardiorespiratory disorders using PPG signals.
  • To employ feature selection and classifiers for accurate cardiovascular disease diagnosis.
  • To differentiate between healthy individuals and those with specific cardiovascular conditions.

Main Methods:

  • Collected PPG data from 360 healthy and cardiovascular disease patients.
  • Utilized a two-stage classification process: healthy vs. unhealthy, then disease type identification.
  • Extracted time-domain features from PPG signals and applied seven different classifiers.

Main Results:

  • The Naïve Bayes classifier achieved the highest accuracy: 94.44% in the first stage and 89.37% in the second.
  • Time-domain features from PPG signals proved vital for accurate cardiovascular disorder detection.
  • The developed PPG classifier demonstrated high accuracy and precision, requiring no further analysis.

Conclusions:

  • PPG signal analysis is a crucial and effective method for detecting heart problems.
  • A PPG classifier built on a simple microcontroller offers a cost-effective and patient-friendly alternative to expensive systems.
  • This approach provides a dependable, repeatable, and portable solution for vascular screening.