IEEE J Biomed Health Inform - A Gaussian Model-based Probabilistic Approach for Pulse Transit Time Estimation.

Tópicos

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

Resumo

In this paper, we propose a new probabilistic approach to pulse transit time (PTT) estimation using a Gaussian distribution model. It is motivated basically by the hypothesis that PTTs normalized by RR intervals follow the Gaussian distribution. To verify the hypothesis, we demonstrate the effects of arterial compliance on the normalized PTTs using the Moens-Korteweg equation. Furthermore, we observe a Gaussian distribution of the normalized PTTs on real data. In order to estimate the PTT using the hypothesis, we first assumed that R-waves in the electrocardiogram (ECG) can be correctly identified. The R-waves limit searching ranges to detect pulse peaks in the photoplethysmogram (PPG) and to synchronize the results with cardiac beats - i.e., the peaks of the PPG are extracted within the corresponding RR interval of the ECG as pulse peak candidates. Their probabilities of being the actual pulse peak are then calculated using a Gaussian probability function. The parameters of the Gaussian function are automatically updated when a new pulse peak is identified. This update makes the probability function adaptive to variations of cardiac cycles. Finally, the pulse peak is identified as the candidate with the highest probability. The proposed approach is tested on a database where ECG and PPG waveforms are collected simultaneously during the submaximal bicycle ergometer exercise test. The results are promising, suggesting that the method provides a simple but more accurate PTT estimation in real applications.

Resumo Limpo

paper propos new probabilist approach puls transit time ptt estim use gaussian distribut model motiv basic hypothesi ptts normal rr interv follow gaussian distribut verifi hypothesi demonstr effect arteri complianc normal ptts use moenskorteweg equat furthermor observ gaussian distribut normal ptts real data order estim ptt use hypothesi first assum rwave electrocardiogram ecg can correct identifi rwave limit search rang detect puls peak photoplethysmogram ppg synchron result cardiac beat ie peak ppg extract within correspond rr interv ecg puls peak candid probabl actual puls peak calcul use gaussian probabl function paramet gaussian function automat updat new puls peak identifi updat make probabl function adapt variat cardiac cycl final puls peak identifi candid highest probabl propos approach test databas ecg ppg waveform collect simultan submaxim bicycl ergomet exercis test result promis suggest method provid simpl accur ptt estim real applic

Resumos Similares

Lifetime Data Anal - Proportional hazards models with discrete frailty. ( 0,736481853367893 )
Comput Methods Programs Biomed - A Bayesian multilevel model for fMRI data analysis. ( 0,70293594659715 )
Med Decis Making - A framework for addressing structural uncertainty in decision models. ( 0,674990171864999 )
Comput Methods Programs Biomed - Piecewise nonlinear mixed-effects models for modeling cardiac function and assessing treatment effects. ( 0,671947203186317 )
Lifetime Data Anal - Additive-multiplicative rates model for recurrent events. ( 0,671483574273782 )
Med Decis Making - Calibration of complex models through Bayesian evidence synthesis: a demonstration and tutorial. ( 0,666067932872531 )
Artif Intell Med - Bayesian tracking of intracranial pressure signal morphology. ( 0,666025074175366 )
J Clin Monit Comput - How do changes in exhaled CO2 measure changes in cardiac output? A numerical analysis model. ( 0,660394844445531 )
IEEE Trans Image Process - Posterior-mean super-resolution with a causal Gaussian Markov random field prior. ( 0,658907643786796 )
Comput Methods Programs Biomed - The exponentiated exponential mixture and non-mixture cure rate model in the presence of covariates. ( 0,657906481886978 )
IEEE Trans Image Process - Nonlinearity detection in hyperspectral images using a polynomial post-nonlinear mixing model. ( 0,656582581735884 )
Lifetime Data Anal - A flexible semiparametric transformation model for recurrent event data. ( 0,656225454197663 )
IEEE Trans Image Process - Variational Bayesian method for Retinex. ( 0,649509047097512 )
J Clin Monit Comput - The effects of cardiac output and pulmonary arterial hypertension on volumetric capnography derived-variables during normoxia and hypoxia. ( 0,648572613789763 )
Comput Methods Programs Biomed - Mixture and non-mixture cure fraction models based on the generalized modified Weibull distribution with an application to gastric cancer data. ( 0,646542208441362 )
Comput. Biol. Med. - Neural network study for standardizing pulse-taking depth by the width of artery. ( 0,644130017573106 )
Res Synth Methods - Bayesian model selection for meta-analysis of diagnostic test accuracy data: Application to Ddimer for deep vein thrombosis. ( 0,637681554878875 )
Lifetime Data Anal - A consistent NPMLE of the joint distribution function with competing risks data under the dependent masking and right-censoring model. ( 0,636362314853275 )
J Clin Monit Comput - Variations in the pre-ejection period induced by deep breathing do not predict the hemodynamic response to early haemorrhage in healthy volunteers. ( 0,634891312128826 )
Comput Methods Programs Biomed - A model of perfusion of the healthy human lung. ( 0,630819782295237 )
Med Biol Eng Comput - A coupled flow-acoustic computational study of bruits from a modeled stenosed artery. ( 0,629015985438412 )
Lifetime Data Anal - Bayesian nonparametric models for ranked set sampling. ( 0,628120825723988 )
Neural Comput - Estimation of time-dependent input from neuronal membrane potential. ( 0,625898859315595 )
Lifetime Data Anal - An additive-multiplicative rates model for recurrent event data with informative terminal event. ( 0,624295292143744 )
J. Comput. Biol. - An optimization-based sampling scheme for phylogenetic trees. ( 0,619761092951485 )
J. Comput. Biol. - Improved harmonic mean estimator for phylogenetic model evidence. ( 0,610948561337719 )
Neural Comput - A semiparametric Bayesian model for detecting synchrony among multiple neurons. ( 0,610894138008666 )
J Med Syst - Human cardiovascular model and applications. ( 0,609205957087344 )
Lifetime Data Anal - Bayesian analysis for monotone hazard ratio. ( 0,608909529360128 )
Comput Math Methods Med - A patient-specific airway branching model for mechanically ventilated patients. ( 0,608166166162546 )
Lifetime Data Anal - Parametric survival densities from phase-type models. ( 0,607908309731641 )
Spat Spatiotemporal Epidemiol - The use of sampling weights in Bayesian hierarchical models for small area estimation. ( 0,605438640226391 )
Comput Math Methods Med - Computational fluid dynamics analysis of the effect of plaques in the left coronary artery. ( 0,604557794290103 )
Comput. Biol. Med. - Global models for patient-ventilator interactions in noninvasive ventilation with asynchronies. ( 0,602848805427902 )
Med Biol Eng Comput - Deriving respiration from photoplethysmographic pulse width. ( 0,601506235462032 )
IEEE Trans Pattern Anal Mach Intell - Modeling Natural Images Using Gated MRFs. ( 0,59992704904984 )
BMC Med Inform Decis Mak - Clinical decision support of therapeutic drug monitoring of phenytoin: measured versus adjusted phenytoin plasma concentrations. ( 0,598939348134548 )
Lifetime Data Anal - Analysis of recurrent events with non-negligible event duration, with application to assessing hospital utilization. ( 0,597882998647369 )
Comput Math Methods Med - Mathematical modeling of radiofrequency ablation for varicose veins. ( 0,597573834935583 )
Med Biol Eng Comput - The influence of intraluminal thrombus on noninvasive abdominal aortic aneurysm wall distensibility measurement. ( 0,596822863224584 )
J Clin Monit Comput - A model-based decision support system for critiquing mechanical ventilation treatments. ( 0,596018496119626 )
Lifetime Data Anal - A functional inference for multivariate current status data with mismeasured covariate. ( 0,595950109034211 )
IEEE J Biomed Health Inform - Experimental investigation of the influence of the aortic stiffness on hemodynamics in the ascending aorta. ( 0,59553139529124 )
Neural Comput - Self-consistent learning of the environment. ( 0,592929242583563 )
Neural Comput - Regularized parameter estimation in high-dimensional gaussian mixture models. ( 0,590257217063801 )
Comput Math Methods Med - Bayesian inference of the Weibull model based on interval-censored survival data. ( 0,589884628540992 )
Comput Math Methods Med - Simulation of exercise-induced syncope in a heart model with severe aortic valve stenosis. ( 0,586318888853546 )
IEEE Trans Pattern Anal Mach Intell - Bayesian Nonparametric Models for Multiway Data Analysis. ( 0,58556926294025 )
J Clin Monit Comput - Pharmacodynamic modeling of propofol-induced tidal volume depression in children. ( 0,584896824560532 )
Lifetime Data Anal - Estimation of odds of concordance based on the Aalen additive model. ( 0,583180957697024 )
Neural Comput - Efficient Markov chain Monte Carlo methods for decoding neural spike trains. ( 0,582323838210646 )
Comput Math Methods Med - An empirical Bayes optimal discovery procedure based on semiparametric hierarchical mixture models. ( 0,581999224824354 )
Comput Math Methods Med - Influence of distal resistance and proximal stiffness on hemodynamics and RV afterload in progression and treatments of pulmonary hypertension: a computational study with validation using animal models. ( 0,581448180577541 )
J Clin Monit Comput - Generic and patient-specific models of the arterial tree. ( 0,581184166459785 )
J Clin Monit Comput - Continuous minimally invasive peri-operative monitoring of cardiac output by pulmonary capnotracking: comparison with thermodilution and transesophageal echocardiography. ( 0,581137759605722 )
Med Decis Making - Estimating multiparameter partial expected value of perfect information from a probabilistic sensitivity analysis sample: a nonparametric regression approach. ( 0,580958273922553 )
Lifetime Data Anal - Bayesian semiparametric modeling for stochastic precedence, with applications in epidemiology and survival analysis. ( 0,58008437530381 )
Comput Math Methods Med - A gradient boosting algorithm for survival analysis via direct optimization of concordance index. ( 0,579949164041069 )
Med Biol Eng Comput - Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis. ( 0,579141591811664 )
J Clin Monit Comput - Comparison of cardiac output determined by bioimpedance and bioreactance methods at rest and during exercise. ( 0,578954763120132 )
IEEE Trans Pattern Anal Mach Intell - Causal Inference on Discrete Data using Additive Noise Models. ( 0,578001571879805 )
J Chem Inf Model - Estimation of environment-related properties of chemicals for design of sustainable processes: development of group-contribution+ (GC+) property models and uncertainty analysis. ( 0,57792243702438 )
IEEE Trans Pattern Anal Mach Intell - Are Gibbs-Type Priors the Most Natural Generalization of the Dirichlet Process? ( 0,577791875226884 )
Comput Methods Programs Biomed - NIMROD: a program for inference via a normal approximation of the posterior in models with random effects based on ordinary differential equations. ( 0,574523544155379 )
Res Synth Methods - A basic introduction to fixed-effect and random-effects models for meta-analysis. ( 0,573490315124274 )
IEEE Trans Vis Comput Graph - Visualizing the Variability of Gradients in Uncertain 2D Scalar Fields. ( 0,57333367058835 )
Comput Math Methods Med - A generalized gamma mixture model for ultrasonic tissue characterization. ( 0,573239422405291 )
Comput Methods Programs Biomed - Bayesian Decision Trees for predicting survival of patients: a study on the US National Trauma Data Bank. ( 0,57228521956359 )
Neural Comput - A Monte Carlo Metropolis-Hastings algorithm for sampling from distributions with intractable normalizing constants. ( 0,570716445503695 )
Med Biol Eng Comput - Computational model for estimating the short- and long-term cardiac response to arteriovenous fistula creation for hemodialysis. ( 0,569751687738263 )
Med Decis Making - Evidence synthesis for decision making 2: a generalized linear modeling framework for pairwise and network meta-analysis of randomized controlled trials. ( 0,56894335034946 )
Comput Methods Programs Biomed - A model of ventilation of the healthy human lung. ( 0,568926981723495 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers part 2: frequency domain analysis. ( 0,568481413623235 )
Comput. Biol. Med. - Prediction of survival of ICU patients using computational intelligence. ( 0,568268791566741 )
J Clin Monit Comput - Respiratory and non-respiratory sinus arrhythmia: implications for heart rate variability. ( 0,567944256265576 )
IEEE Trans Image Process - Counting people with low-level features and Bayesian regression. ( 0,567934396711481 )
Med Biol Eng Comput - The effects of physiological thermoregulation on the efficacy of surface cooling for therapeutic hypothermia. ( 0,567620587580284 )
Spat Spatiotemporal Epidemiol - Goodness-of-fit measures for individual-level models of infectious disease in a Bayesian framework. ( 0,56734731812205 )
Med Biol Eng Comput - Fully coupled fluid-structure interaction model of congenital bicuspid aortic valves: effect of asymmetry on hemodynamics. ( 0,566259750204864 )
J Clin Monit Comput - Arterial pressure waveform derived cardiac output FloTrac/Vigileo system (third generation software): comparison of two monitoring sites with the thermodilution cardiac output. ( 0,565854582821526 )
Comput Math Methods Med - Bayesian hierarchical modeling for categorical longitudinal data from sedation measurements. ( 0,56576863233734 )
Comput. Biol. Med. - A semi-automated computer tool for the analysis of retinal vessel diameter dynamics. ( 0,564072069586521 )
Res Synth Methods - A Bayesian nonparametric meta-analysis model. ( 0,56368476289081 )
Med Biol Eng Comput - Determinants of vascular and cardiac baroreflex sensitivity values in a random population sample. ( 0,563629502433002 )
Med Biol Eng Comput - Characterization of skin dermis microcirculation in flow-mediated dilation using optical sensor with pressurization mechanism. ( 0,563406087058651 )
Comput. Biol. Med. - Analysis of the effects of different pulsatile inlet profiles on the hemodynamical properties of blood flow in patient specific carotid artery with stenosis. ( 0,562935501103535 )
Comput Math Methods Med - Numerical study for blood flow in pulmonary arteries after repair of tetralogy of Fallot. ( 0,56211897188278 )
Lifetime Data Anal - Estimating treatment effects on the marginal recurrent event mean in the presence of a terminating event. ( 0,56196595085844 )
Med Decis Making - Eliciting benefit-risk preferences and probability-weighted utility using choice-format conjoint analysis. ( 0,561786685863186 )
Lifetime Data Anal - Diagnostic tools for bivariate accelerated life regression models. ( 0,558629192042894 )
Comput Math Methods Med - (Radio)biological optimization of external-beam radiotherapy. ( 0,557483104366875 )
Neural Comput - The shape of phase-resetting curves in oscillators with a saddle node on an invariant circle bifurcation. ( 0,557423235429069 )
Comput Math Methods Med - Simulation of the Frank-Starling Law of the Heart. ( 0,557309903498605 )
Med Biol Eng Comput - Assessment of dynamic cerebral autoregulation and cerebral carbon dioxide reactivity during normothermic cardiopulmonary bypass. ( 0,556679319675411 )
BMC Med Inform Decis Mak - Intuitive weights of harm for therapeutic decision making in smear-negative pulmonary Tuberculosis: an interview study of physicians in India, Pakistan and Bangladesh. ( 0,556378039599494 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers. Part 1: time domain analysis. ( 0,555248426188452 )
IEEE Trans Neural Netw Learn Syst - Incorporating Wind Power Forecast Uncertainties Into Stochastic Unit Commitment Using Neural Network-Based Prediction Intervals. ( 0,555218753126567 )
J Clin Monit Comput - The changes of pulmonary blood flow in non-ventilated lung during one lung ventilation. ( 0,55516414975142 )
IEEE Trans Image Process - Bayesian inference of models and hyperparameters for robust optical-flow estimation. ( 0,554135200472691 )
Neural Comput - Efficient sensory encoding and Bayesian inference with heterogeneous neural populations. ( 0,554075795869877 )