[Automatic analysis of cardiological signals for diagnosis of ischemic heart disease]
Abstract:
A new noninvasive method for early detection of ischemic heart disease based on singular value decomposition is introduced. The method automatically explores waveforms of an ECG by making projections of individual ECG leads onto axes formed by the first three components of the singular value decomposition performed for the whole group of ECGs, including cases with and without coronary artery lesions (460 ECGs). Detection of the presence of lesions is performed with 73% sensitivity and 83% specificity. Sensitivity and specificity become lower when specifying which coronary artery contains lesions: 69% and 77%, respectively, for the right coronary artery, 66% and 82%, respectively, for left anterior descending artery. 74% and 71%, respectively, for the left circumflex artery. The method is being developed so that it might be included into the programs of automatic ECG analysis, particularly for population studies.
Related Concept Videos
Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Correlation between ECG and Cardiac Cycle
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
Imaging Studies for Cardiovascular System I:Echocardiography
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Acute Coronary Syndrome III: Diagnostic Studies
Dysrhythmias V: Evaluating Dysrhythmias


