Measurement, interpretation and clinical potential of QT dispersion

M Malik, VN Batchvarov - Journal of the American College of Cardiology, 2000 - jacc.org
QT dispersion was originally proposed to measure spatial dispersion of ventricular recovery
times. Later, it was shown that QT dispersion does not directly reflect the dispersion of …

[PDF][PDF] Principal component analysis in ECG signal processing

F Castells, P Laguna, L Sörnmo, A Bollmann… - EURASIP Journal on …, 2007 - Springer
This paper reviews the current status of principal component analysis in the area of ECG
signal processing. The fundamentals of PCA are briefly described and the relationship …

Self-amplified Amazon forest loss due to vegetation-atmosphere feedbacks

DC Zemp, CF Schleussner, HMJ Barbosa… - Nature …, 2017 - nature.com
Reduced rainfall increases the risk of forest dieback, while in return forest loss might
intensify regional droughts. The consequences of this vegetation–atmosphere feedback for …

Differentiating drug‐induced multichannel block on the electrocardiogram: randomized study of dofetilide, quinidine, ranolazine, and verapamil

L Johannesen, J Vicente, JW Mason… - Clinical …, 2014 - Wiley Online Library
Block of the hERG potassium channel and prolongation of the QT interval are predictors of
drug‐induced torsade de pointes. However, drugs that block the hERG potassium channel …

[HTML][HTML] ECG-based cardiac arrhythmias detection through ensemble learning and fusion of deep spatial–temporal and long-range dependency features

S Din, M Qaraqe, O Mourad, K Qaraqe… - Artificial Intelligence in …, 2024 - Elsevier
Cardiac arrhythmia is one of the prime reasons for death globally. Early diagnosis of heart
arrhythmia is crucial to provide timely medical treatment. Heart arrhythmias are diagnosed …

Spatial QRS-T angle predicts cardiac death in a general population

I Kardys, JA Kors, IM van der Meer… - European heart …, 2003 - academic.oup.com
Aims The aim of this study was to assess the prognostic importance of the spatial QRS-T
angle for fatal and non-fatal cardiac events. Methods and results Electrocardiograms (ECGs) …

[PDF][PDF] Electrocardiogram (ECG) signal processing

LS Rnmo, P Laguna - Wiley Encyclopedia Biomed. Eng., 2006 - diec.unizar.es
Signal processing today is performed in the vast majority of systems for ECG analysis and
interpretation. The objective of ECG signal processing is manifold and comprises the …

Evaluation of drug-induced QT interval prolongation: implications for drug approval and labelling

M Malik, AJ Camm - Drug safety, 2001 - Springer
Assessment of proarrhythmic toxicity of newly developed drugs attracts significant attention
from drug developers and regulatory agencies. Although no guidelines exist for such …

Analysis of 12-lead T-wave morphology for risk stratification after myocardial infarction

M Zabel, B Acar, T Klingenheben, MR Franz… - Circulation, 2000 - ahajournals.org
Background—The stratification of post–myocardial infarction (MI) patients at risk of sudden
cardiac death remains important. The aim of the present study was to assess the prognostic …

Comprehensive T wave morphology assessment in a randomized clinical study of dofetilide, quinidine, ranolazine, and verapamil

J Vicente, L Johannesen, JW Mason… - Journal of the …, 2015 - ahajournals.org
Background Congenital long QT syndrome type 2 (abnormal hERG potassium channel)
patients can develop flat, asymmetric, and notched T waves. Similar observations have been …