Med Biol Eng Comput - The effect of precordial lead displacement on ECG morphology.

Tópicos

{ signal(2180) analysi(812) frequenc(800) }
{ chang(1828) time(1643) increas(1301) }
{ measur(2081) correl(1212) valu(896) }
{ import(1318) role(1303) understand(862) }
{ error(1145) method(1030) estim(1020) }
{ imag(2675) segment(2577) method(1081) }
{ perform(999) metric(946) measur(919) }
{ method(984) reconstruct(947) comput(926) }
{ risk(3053) factor(974) diseas(938) }
{ can(774) often(719) complex(702) }
{ imag(1057) registr(996) error(939) }
{ studi(1119) effect(1106) posit(819) }
{ can(981) present(881) function(850) }
{ drug(1928) target(777) effect(648) }
{ detect(2391) sensit(1101) algorithm(908) }
{ imag(1947) propos(1133) code(1026) }
{ featur(3375) classif(2383) classifi(1994) }
{ take(945) account(800) differ(722) }
{ problem(2511) optim(1539) algorithm(950) }
{ model(2220) cell(1177) simul(1124) }
{ case(1353) use(1143) diagnosi(1136) }
{ blood(1257) pressur(1144) flow(957) }
{ spatial(1525) area(1432) region(1030) }
{ group(2977) signific(1463) compar(1072) }
{ decis(3086) make(1611) patient(1517) }
{ method(1969) cluster(1462) data(1082) }
{ model(3404) distribut(989) bayesian(671) }
{ data(1737) use(1416) pattern(1282) }
{ inform(2794) health(2639) internet(1427) }
{ system(1976) rule(880) can(841) }
{ bind(1733) structur(1185) ligand(1036) }
{ sequenc(1873) structur(1644) protein(1328) }
{ method(1219) similar(1157) match(930) }
{ imag(2830) propos(1344) filter(1198) }
{ network(2748) neural(1063) input(814) }
{ patient(2315) diseas(1263) diabet(1191) }
{ studi(2440) review(1878) systemat(933) }
{ motion(1329) object(1292) video(1091) }
{ assess(1506) score(1403) qualiti(1306) }
{ treatment(1704) effect(941) patient(846) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ framework(1458) process(801) describ(734) }
{ learn(2355) train(1041) set(1003) }
{ concept(1167) ontolog(924) domain(897) }
{ clinic(1479) use(1117) guidelin(835) }
{ algorithm(1844) comput(1787) effici(935) }
{ extract(1171) text(1153) clinic(932) }
{ method(1557) propos(1049) approach(1037) }
{ data(1714) softwar(1251) tool(1186) }
{ design(1359) user(1324) use(1319) }
{ control(1307) perform(991) simul(935) }
{ care(1570) inform(1187) nurs(1089) }
{ general(901) number(790) one(736) }
{ search(2224) databas(1162) retriev(909) }
{ featur(1941) imag(1645) propos(1176) }
{ howev(809) still(633) remain(590) }
{ data(3963) clinic(1234) research(1004) }
{ studi(1410) differ(1259) use(1210) }
{ research(1085) discuss(1038) issu(1018) }
{ system(1050) medic(1026) inform(1018) }
{ model(2341) predict(2261) use(1141) }
{ visual(1396) interact(850) tool(830) }
{ compound(1573) activ(1297) structur(1058) }
{ perform(1367) use(1326) method(1137) }
{ record(1888) medic(1808) patient(1693) }
{ health(3367) inform(1360) care(1135) }
{ model(3480) simul(1196) paramet(876) }
{ monitor(1329) mobil(1314) devic(1160) }
{ ehr(2073) health(1662) electron(1139) }
{ state(1844) use(1261) util(961) }
{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ model(2656) set(1616) predict(1553) }
{ data(2317) use(1299) case(1017) }
{ age(1611) year(1155) adult(843) }
{ medic(1828) order(1363) alert(1069) }
{ cost(1906) reduc(1198) effect(832) }
{ sampl(1606) size(1419) use(1276) }
{ gene(2352) biolog(1181) express(1162) }
{ data(3008) multipl(1320) sourc(1022) }
{ first(2504) two(1366) second(1323) }
{ intervent(3218) particip(2042) group(1664) }
{ activ(1138) subject(705) human(624) }
{ time(1939) patient(1703) rate(768) }
{ patient(1821) servic(1111) care(1106) }
{ use(2086) technolog(871) perceiv(783) }
{ analysi(2126) use(1163) compon(1037) }
{ health(1844) social(1437) communiti(874) }
{ structur(1116) can(940) graph(676) }
{ high(1669) rate(1365) level(1280) }
{ cancer(2502) breast(956) screen(824) }
{ use(976) code(926) identifi(902) }
{ use(1733) differ(960) four(931) }
{ result(1111) use(1088) new(759) }
{ implement(1333) system(1263) develop(1122) }
{ survey(1388) particip(1329) question(1065) }
{ estim(2440) model(1874) function(577) }
{ process(1125) use(805) approach(778) }
{ activ(1452) weight(1219) physic(1104) }
{ method(2212) result(1239) propos(1039) }

Resumo

Inaccurate electrode placement and differences in inter-individual human anatomies can lead to misinterpretation of ECG examination. The aim of the study was to investigate the effect of precordial electrodes displacement on morphology of the ECG signal in a group of 60 patients with diagnosed cardiac disease. Shapes of ECG signals recorded from precordial leads were compared with signals interpolated at the points located at a distance up to 5?cm from lead location. Shape differences of the QRS and ST-T-U complexes were quantified using the distribution function method, correlation coefficient, root-mean-square error (RMSE), and normalized RMSE. The relative variability (RV) index was calculated to quantify inter-individual variability. ECG morphology changes were prominent in all shape parameters beyond 2?cm distance to precordial leads. Lead V2 was the most sensitive to displacement errors, followed by leads V3, V1, and V4, for which the direction of electrodes displacement plays a key role. No visible changes in ECG morphology were observed in leads V5 and V6, only scaling effect of signal amplitude. The RV ranged from 0.639 to 0.989. Distortions in ECG tracings increase with the distance from precordial lead, which are specific to chosen electrode, direction of displacement, and for ECG segment selected for calculations.

Resumo Limpo

inaccur electrod placement differ interindividu human anatomi can lead misinterpret ecg examin aim studi investig effect precordi electrod displac morpholog ecg signal group patient diagnos cardiac diseas shape ecg signal record precordi lead compar signal interpol point locat distanc cm lead locat shape differ qrs sttu complex quantifi use distribut function method correl coeffici rootmeansquar error rmse normal rmse relat variabl rv index calcul quantifi interindividu variabl ecg morpholog chang promin shape paramet beyond cm distanc precordi lead lead v sensit displac error follow lead v v v direct electrod displac play key role visibl chang ecg morpholog observ lead v v scale effect signal amplitud rv rang distort ecg trace increas distanc precordi lead specif chosen electrod direct displac ecg segment select calcul

Resumos Similares

Comput Methods Programs Biomed - An application of fractional differintegration to heart rate variability time series. ( 0,773824740212507 )
Med Biol Eng Comput - Characterization of QT and RR interval series during acute myocardial ischemia by means of recurrence quantification analysis. ( 0,759151460852261 )
Comput Math Methods Med - A wavelet transform based method to determine depth of anesthesia to prevent awareness during general anesthesia. ( 0,740622364466262 )
Comput Methods Programs Biomed - Increasing sensitivity in the measurement of heart rate variability: the method of non-stationary RR time-frequency analysis. ( 0,717165318621326 )
J Clin Monit Comput - Impaired cerebrovascular reactivity after acute traumatic brain injury can be detected by wavelet phase coherence analysis of the intracranial and arterial blood pressure signals. ( 0,713348937041165 )
Comput Math Methods Med - Analysis of visual appearance of retinal nerve fibers in high resolution fundus images: a study on normal subjects. ( 0,706926789003025 )
J Clin Monit Comput - Multi-scale sample entropy of electroencephalography during sevoflurane anesthesia. ( 0,703046509594483 )
J Clin Monit Comput - A quantitative EEG method for detecting post clamp changes during carotid endarterectomy. ( 0,701272810869163 )
Comput Methods Programs Biomed - Linear and nonlinear analysis of normal and CAD-affected heart rate signals. ( 0,700276740917908 )
Comput. Biol. Med. - Prediction of pharmacologically induced baroreflex sensitivity from local time and frequency domain indices of R-R interval and systolic blood pressure signals obtained during deep breathing. ( 0,695452508311202 )
J Clin Monit Comput - Respiratory change in ECG-wave amplitude is a reliable parameter to estimate intravascular volume status. ( 0,690050257659341 )
J Clin Monit Comput - Changes in cardiac output and stroke volume as measured by non-invasive CO monitoring in infants with RSV bronchiolitis. ( 0,68768132763089 )
Comput. Biol. Med. - Binary symbolic dynamics classifies heart rate variability patterns linked to autonomic modulations. ( 0,683458386023153 )
Comput Methods Programs Biomed - An R-peak detection method that uses an SVD filter and a search back system. ( 0,672380052540287 )
Med Biol Eng Comput - Evaluation of ventricular repolarization dispersion during acute myocardial ischemia: spatial and temporal ECG indices. ( 0,671469490376125 )
Med Biol Eng Comput - A method for continuously assessing the autonomic response to music-induced emotions through HRV analysis. ( 0,664485398541628 )
Comput. Biol. Med. - Computational method for high resolution spectral analysis of fractionated atrial electrograms. ( 0,661182455751093 )
J Med Syst - Determining the appropriate amount of anesthetic gas using DWT and EMD combined with neural network. ( 0,660388383962699 )
J Med Syst - Multi-feature characterization of epileptic activity for construction of an automated internet-based annotated classification. ( 0,658197810201651 )
Comput Math Methods Med - Detection of structural changes in tachogram series for the diagnosis of atrial fibrillation events. ( 0,655542944180127 )
Comput Math Methods Med - Higher-order spectrum in understanding nonlinearity in EEG rhythms. ( 0,654635661901678 )
Comput. Biol. Med. - A novel electrocardiogram parameterization algorithm and its application in myocardial infarction detection. ( 0,653621363616287 )
J Med Syst - The effect of multiscale PCA de-noising in epileptic seizure detection. ( 0,647962128077658 )
Comput. Biol. Med. - Characteristic time scales of electroencephalograms of narcoleptic patients and healthy controls. ( 0,647027034346021 )
Med Biol Eng Comput - QRS subtraction for atrial electrograms: flat, linear and spline interpolations. ( 0,645599561518582 )
Comput Methods Programs Biomed - Averaging in vitro cardiac field potential recordings obtained with microelectrode arrays. ( 0,645268345144645 )
Comput Methods Programs Biomed - Like/dislike analysis using EEG: determination of most discriminative channels and frequencies. ( 0,640701748558944 )
J Clin Monit Comput - Non-stationarity of EEG during wakefulness and anaesthesia: advantages of EEG permutation entropy monitoring. ( 0,637350157623388 )
Artif Intell Med - Automatic sleep scoring: a search for an optimal combination of measures. ( 0,635597552792652 )
Neural Comput - Identification of directed influence: Granger causality, Kullback-Leibler divergence, and complexity. ( 0,629906614654687 )
Comput Methods Programs Biomed - Feature extraction of the first difference of EMG time series for EMG pattern recognition. ( 0,628150171151477 )
Med Biol Eng Comput - Assessing the complexity of short-term heartbeat interval series by distribution entropy. ( 0,626904885494615 )
Methods Inf Med - Prediction of countershock success in patients using the autoregressive spectral estimation. ( 0,626720481039211 )
Comput. Biol. Med. - Spectral analysis of heart rate variability with the autoregressive method: what model order to choose? ( 0,626450654692629 )
Comput Methods Programs Biomed - QRS detection based on wavelet coefficients. ( 0,626141219922111 )
J Med Syst - Identification of deep sleep and awake with computational EEG measures. ( 0,625636492607145 )
Int J Neural Syst - Detection of driving fatigue by using noncontact EMG and ECG signals measurement system. ( 0,625181183108539 )
Comput Methods Programs Biomed - Power line interference filtering on surface electromyography based on the stationary wavelet packet transform. ( 0,624720961521521 )
Comput Math Methods Med - Automatic identification of motion artifacts in EHG recording for robust analysis of uterine contractions. ( 0,624644356466215 )
Methods Inf Med - Classification of sleep stages using multi-wavelet time frequency entropy and LDA. ( 0,624234000988456 )
Med Biol Eng Comput - Heart rate variability and nonlinear dynamic analysis in patients with stress-induced cardiomyopathy. ( 0,621909941229696 )
Comput Methods Programs Biomed - Automated sleep stage identification system based on time-frequency analysis of a single EEG channel and random forest classifier. ( 0,621708883914095 )
Comput. Biol. Med. - Alcoholism-related alterations in spectrum, coherence, and phase synchrony of topical electroencephalogram. ( 0,621410022695542 )
Med Biol Eng Comput - Cross-correlation of EEG frequency bands and heart rate variability for sleep apnoea classification. ( 0,620177476047602 )
Comput Methods Programs Biomed - QRS detection using S-Transform and Shannon energy. ( 0,617810618435224 )
Methods Inf Med - Long-term correlations and complexity analysis of the heart rate variability signal during sleep. Comparing normal and pathologic subjects. ( 0,615265346675254 )
J Telemed Telecare - ECG telemonitoring during home-based cardiac rehabilitation in heart failure patients. ( 0,613157065499706 )
Comput Methods Programs Biomed - Epileptic seizure classification in EEG signals using second-order difference plot of intrinsic mode functions. ( 0,610584480191257 )
Int J Neural Syst - Application of empirical mode decomposition (emd) for automated detection of epilepsy using EEG signals. ( 0,609540185777369 )
Comput Methods Programs Biomed - Automatic moment segmentation and peak detection analysis of heart sound pattern via short-time modified Hilbert transform. ( 0,60936382415403 )
Med Biol Eng Comput - Peculiarities of extracellular potentials produced by deep muscles. Part 2: motor unit potentials. ( 0,608640944927387 )
Comput. Biol. Med. - Current methods in electrocardiogram characterization. ( 0,607729169754562 )
J Clin Monit Comput - Intraoperative MRI electrical noise and monitor ECG filters affect arrhythmia detection and identification. ( 0,607428701643695 )
Methods Inf Med - Linear and fractal heart rate dynamics during sleep at high altitude. Investigation with textile technology. ( 0,607130809017767 )
J Clin Monit Comput - Can short-term heart rate variability be used to monitor fentanyl-midazolam induced changes in ANS preceding respiratory depression? ( 0,606686222123567 )
Methods Inf Med - Auditory and Nociceptive Stimuli Responses in the Electroencephalogram. A Non-linear Measures and Time-frequency Representation Based Analysis. ( 0,605805877642725 )
Comput. Biol. Med. - Wavelet-based denoising method for real phonocardiography signal recorded by mobile devices in noisy environment. ( 0,605147094259226 )
Comput Math Methods Med - A novel automatic detection system for ECG arrhythmias using maximum margin clustering with immune evolutionary algorithm. ( 0,604822520041273 )
Med Biol Eng Comput - Classification of surface electromyographic signals by means of multifractal singularity spectrum. ( 0,604462906976694 )
J Clin Monit Comput - Morphological analysis of peripheral arterial signals in Takayasu's arteritis. ( 0,604195331861755 )
Comput Math Methods Med - Spectral asymmetry and Higuchi's fractal dimension measures of depression electroencephalogram. ( 0,60418919761875 )
IEEE J Biomed Health Inform - Sleep and wake classification with actigraphy and respiratory effort using dynamic warping. ( 0,603022289847576 )
Comput. Biol. Med. - Estimating cognitive workload using wavelet entropy-based features during an arithmetic task. ( 0,602112028355971 )
IEEE J Biomed Health Inform - Single Trial Visual Evoked Potential Extraction using Partial Least Squares-based Approach. ( 0,602065087456959 )
Comput Methods Programs Biomed - Correlation method versus enhanced modified moving average method for automatic detection of T-wave alternans. ( 0,601698934599729 )
J Med Syst - Variable threshold method for ECG R-peak detection. ( 0,600919866170585 )
Med Biol Eng Comput - Phonographic signal with a fractional-order chaotic system: a novel and simple algorithm for analyzing residual arteriovenous access stenosis. ( 0,597991462646497 )
J Clin Monit Comput - Heart rate variability indices for very short-term (30 beat) analysis. Part 1: survey and toolbox. ( 0,597954001163598 )
Comput Methods Programs Biomed - Analysis of normal and epileptic seizure EEG signals using empirical mode decomposition. ( 0,597314426124867 )
IEEE J Biomed Health Inform - Analysis of the EMG Signal During Cyclic Movements Using Multicomponent AM-FM Decomposition. ( 0,597261672110076 )
IEEE J Biomed Health Inform - EEG activity during movement planning encodes upcoming peak speed and acceleration and improves the accuracy in predicting hand kinematics. ( 0,596245726615557 )
Med Biol Eng Comput - Characteristics of the swallowing sounds recorded in the ear, nose and on trachea. ( 0,596082311659474 )
Comput Methods Programs Biomed - Biomedical time series clustering based on non-negative sparse coding and probabilistic topic model. ( 0,59495466582509 )
J Med Syst - Design and development of a heart rate variability analyzer. ( 0,594133881795328 )
J Med Syst - Analysis of repetitive flash stimulation frequencies and record periods to detect migraine using artificial neural network. ( 0,594051584564645 )
Comput Methods Programs Biomed - An approach towards realizing the intelligent sphygmogram sampling for e-home healthcare. ( 0,593985854527815 )
Comput. Biol. Med. - Path length entropy analysis of diastolic heart sounds. ( 0,592801075640832 )
Comput. Biol. Med. - Automatic classification of infant sleep based on instantaneous frequencies in a single-channel EEG signal. ( 0,592600993680758 )
Med Biol Eng Comput - Multivariate short-term heart rate variability: a pre-diagnostic tool for screening heart disease. ( 0,591905912547666 )
Med Biol Eng Comput - Effects of fetal respiratory movements on the short-term fractal properties of heart rate variability. ( 0,590682868234213 )
Comput Math Methods Med - Probabilistic source separation for robust fetal electrocardiography. ( 0,589960852199509 )
J Clin Monit Comput - Identification of apnea during respiratory monitoring using support vector machine classifier: a pilot study. ( 0,589945851854547 )
Int J Neural Syst - Neural correlates of mathematical problem solving. ( 0,589809567256817 )
J Clin Monit Comput - Parameter selection in permutation entropy for an electroencephalographic measure of isoflurane anesthetic drug effect. ( 0,58967770276302 )
Comput Methods Programs Biomed - Characterisation of linear predictability and non-stationarity of subcutaneous glucose profiles. ( 0,58905931191667 )
IEEE Trans Image Process - Stable and Robust Sampling Strategies for Compressive Imaging. ( 0,588759879127902 )
Comput Math Methods Med - A harmonic linear dynamical system for prominent ECG feature extraction. ( 0,588520261940318 )
Comput. Biol. Med. - Atrial activity selection for atrial fibrillation ECG recordings. ( 0,58848836993715 )
J Med Syst - Epileptic seizure detection using probability distribution based on equal frequency discretization. ( 0,588348339081335 )
Comput Math Methods Med - An automated optimal engagement and attention detection system using electrocardiogram. ( 0,588043011895501 )
Methods Inf Med - Linear and nonlinear analysis of base lung sound in extrinsic allergic alveolitis patients in comparison to healthy subjects. ( 0,587565452264734 )
Comput Math Methods Med - Fetal ECG extraction from abdominal signals: a review on suppression of fundamental power line interference component and its harmonics. ( 0,586193107570047 )
J Clin Monit Comput - The effect of skin incision on the electroencephalogram during general anesthesia maintained with propofol or desflurane. ( 0,585250207824646 )
IEEE Trans Image Process - Toward a direct measure of video quality perception using EEG. ( 0,583429199203625 )
Methods Inf Med - Time-frequency techniques in biomedical signal analysis. a tutorial review of similarities and differences. ( 0,582498797264069 )
Med Biol Eng Comput - Reconstruction of gastric slow wave from finger photoplethysmographic signal using radial basis function neural network. ( 0,582210762527881 )
Neural Comput - Delay differential analysis of electroencephalographic data. ( 0,582096556174726 )
Comput. Biol. Med. - A fixed point algorithm for extracting the atrial activity in the frequency domain. ( 0,581691368301215 )
J Biomed Inform - A general framework for time series data mining based on event analysis: application to the medical domains of electroencephalography and stabilometry. ( 0,581040214763956 )
Artif Intell Med - Human movement onset detection from isometric force and torque measurements: a supervised pattern recognition approach. ( 0,580348242050194 )