T-wave alternans, a beat-to-beat re-polarization pattern variation phenomenon, plays an important role in sudden cardiac death prediction. The proposed method modifies the currently available Modified Moving Average Method (MMAM) by a multi-lead principal component analysis (PCA) approach. Application of PCA will concentrate the alternans effect, which is supposed to be distributed on multiple leads in a single derived lead. MMAM is applied to the derived lead and alternans magnitude is measured. Results are compared with MMAM, implemented by the authors and by an open source tool, TWAnalyser. The TWA Physionet/CinC 2008 Challenge Database is used for testing. Performances are measured in terms of root mean square error (rmse) and correlation coefficients. The rmse is highest for TWAnalyser results and lowest for the proposed method. While the correlation coefficient is highest for the proposed method, 0.88, that for normal MMAM is 0.73 and for TWAnalyser is 0.75. The proposed multi-lead PCA approach provides improved performance of current MMAM.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/03091902.2014.960605 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metallomic Classification of Pulmonary Nodules Using Blood by Deep-Learning-Boosted Synchrotron Radiation X-ray Fluorescence.
Environ Health (Wash)
January 2025
CAS-HKU Joint Laboratory of Metallomics on Health and Environment, & CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & Beijing Metallomics Facility, & National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Ambient air pollution is an important contributor to increasing cases of lung cancer, which is a malignant cancer with the highest mortality among all cancers. It primarily manifests in the form of pulmonary nodules, but not all will develop into lung cancer. Therefore, it is highly desired to distinguish between benign and malignant pulmonary nodules for the early prevention and treatment of lung cancer.
View Article and Find Full Text PDFStudy on Quality Evaluation of Tibetan Dracocephali tangutici Herba Based on DNA Barcode and HPLC Fingerprinting.
Phytochem Anal
January 2025
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.
Objectives: The quality of 30 batches of the Tibetan Dracocephali tangutici Herba was evaluated using HPLC fingerprinting and DNA sequences.
Methods: Botanical identification of 30 batches of D. tangutici herba was conducted using the DNA barcoding approach, specifically analyzing the ITS and rbcL sequences.
Comparison of Vegetable Waste Byproducts of Selected Cultivars of Foeniculum vulgare Mill. by an Integrated LC-(HR)MS and H-NMR-Based Metabolomics Approach.
Phytochem Anal
January 2025
Department of Pharmacy, University of the Study of Salerno, Fisciano, Italy.
Introduction: The metabolome of plants is influenced by various factors, especially environmental, as the season in which they are grown. So, distinct varieties of the identical plant might show an increase or decrease in metabolites. The diversity of content of primary and secondary metabolites can also determine the variation in their biological properties.
View Article and Find Full Text PDFBiophysiochemically favorable, antithrombotic and pro-endothelial coordination compound nanocoating of copper (II) with protocatechuic acid & nattokinase on flow-diverting stents.
Colloids Surf B Biointerfaces
January 2025
Institute of Biomedical Engineering, College of Medicine, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China. Electronic address:
Neurovascular flow-diverting stents (FDSs) are revolutionizing the paradigm for treatment of intracranial aneurysms, but they still face great challenges like post- implantation acute thrombosis and delayed reendothelialization. Surface modification is of crucial relevance in addressing such key issues. In this study, we fabricated an ultrathin nanocoating out of copper (II) together with protocatechuic acid (PCA) and nattokinase (NK) bioactive molecules on NiTi FDSs via a coordination chemistry approach, with favorable biophysiochemical interactions, to fulfill this goal.
View Article and Find Full Text PDFAdenocarpine, Marmesin, and Lycocernuine from Ficus benjamina as Promising Inhibitors of Aldose Reductase in Diabetes: A Bioinformatics-Guided Approach.
Appl Biochem Biotechnol
January 2025
Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
Diabetes affects approximately 422 million people worldwide, leading to 1.5 million deaths annually and causing severe complications such as kidney failure, neuropathy, and cardiovascular disease. Aldose reductase (AR), a key enzyme in the polyol pathway, is an important therapeutic target for managing these complications.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!