Photoplethysmography-derived approximate entropy and sample entropy as measures of analgesia depth during propofol–remifentanil anesthesia
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Clinical Monitoring and Computing"
DOI: 10.1007/s10877-020-00470-6
Abstract: The ability to monitor the physiological effect of the analgesic agent is of interest in clinical practice. Nonstationary changes would appear in photoplethysmography (PPG) during the analgesics-driven transition to analgesia. The present work studied the… read more here.
Keywords: analgesia depth; entropy; approximate entropy; sample entropy ... See more keywords
The approximate entropy concept extended to three dimensions for calibrated, single parameter structural complexity interrogation of volumetric images.
Sign Up to like & getrecommendations! Published in 2017 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/aa75b0
Abstract: Reconstructive volumetric imaging permeates medical practice because of its apparently clear depiction of anatomy. However, the tell tale signs of abnormality and its delineation for treatment demand experts work at the threshold of visibility for… read more here.
Keywords: extended three; three dimensions; entropy concept; concept extended ... See more keywords
Fuzzy Approximate Entropy of Extrema Based on Multiple Moving Averages as a Novel Approach in Obstructive Sleep Apnea Screening
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Translational Engineering in Health and Medicine"
DOI: 10.1109/jtehm.2022.3197084
Abstract: Objective: Obstructive sleep apnea (OSA) is a respiratory disease associated with autonomic nervous system dysfunction. As a novel method for analyzing OSA depending on heart rate variability, fuzzy approximate entropy of extrema based on multiple… read more here.
Keywords: fuzzy approximate; entropy extrema; approximate entropy; sleep apnea ... See more keywords
Complexity analysis from EEG data in congestive heart failure: A study via approximate entropy
Sign Up to like & getrecommendations! Published in 2023 at "Acta Physiologica"
DOI: 10.1111/apha.13979
Abstract: Congestive heart failure (CHF) is a very complex clinical syndrome that may lead to ischemic cerebral hypoxia condition. The aim of the present study is to analyze the effects of CHF on brain activity through… read more here.
Keywords: congestive heart; heart failure; study; approximate entropy ... See more keywords
Dynamics Analysis and Fractional-Order Approximate Entropy of Nonlinear Inventory Management Systems
Sign Up to like & getrecommendations! Published in 2021 at "Mathematical Problems in Engineering"
DOI: 10.1155/2021/5516703
Abstract: Inventory management is complex nonlinear systems that are affected by various external factors, including course human action and policy. We study the inventory management model under special circumstances and analyse the equilibrium point of the… read more here.
Keywords: inventory management; approximate entropy; inventory;
Estimation of Complexity of Sampled Biomedical Continuous Time Signals Using Approximate Entropy
Sign Up to like & getrecommendations! Published in 2018 at "Frontiers in Physiology"
DOI: 10.3389/fphys.2018.00710
Abstract: Non-linear analysis found many applications in biomedicine. Approximate entropy (ApEn) is a popular index of complexity often applied to biomedical data, as it provides quite stable indications when processing short and noisy epochs. However, ApEn… read more here.
Keywords: time signals; estimation complexity; complexity; approximate entropy ... See more keywords
Approximate Entropy and Sample Entropy: A Comprehensive Tutorial
Sign Up to like & getrecommendations! Published in 2019 at "Entropy"
DOI: 10.3390/e21060541
Abstract: Approximate Entropy and Sample Entropy are two algorithms for determining the regularity of series of data based on the existence of patterns. Despite their similarities, the theoretical ideas behind those techniques are different but usually… read more here.
Keywords: entropy; entropy sample; approximate entropy; sample entropy ... See more keywords
Approximate Entropy of Brain Network in the Study of Hemispheric Differences
Sign Up to like & getrecommendations! Published in 2020 at "Entropy"
DOI: 10.3390/e22111220
Abstract: Human brain, a dynamic complex system, can be studied with different approaches, including linear and nonlinear ones. One of the nonlinear approaches widely used in electroencephalographic (EEG) analyses is the entropy, the measurement of disorder… read more here.
Keywords: brain network; approximate entropy; study; entropy brain ... See more keywords
Approximate Entropy in Canonical and Non-Canonical Fiction
Sign Up to like & getrecommendations! Published in 2022 at "Entropy"
DOI: 10.3390/e24020278
Abstract: Computational textual aesthetics aims at studying observable differences between aesthetic categories of text. We use Approximate Entropy to measure the (un)predictability in two aesthetic text categories, i.e., canonical fiction (‘classics’) and non-canonical fiction (with lower… read more here.
Keywords: canonical non; approximate entropy; entropy; non canonical ... See more keywords