Modelbased analysis of the ventricular response during atrial fibrillation
(2011) Computing in Cardiology Conference (CinC) 2011 In Computers in Cardiology p.14 Abstract
 We study a model of the atrioventricular node function during atrial fibrillation (AF), for which the model parameters can be estimated from the ECG. The proposed model is defined by parameters which characterize the arrival rate of atrial impulses, the probability of an impulse choosing either one of the two atrioventricular nodal pathways, the refractory periods of these pathways, and the prolongation of the refractory periods. The parameters are estimated from the RR intervals using maximum likelihood estimation, except for the shorter refractory period which is estimated from the RR interval Poincare plot, and the mean arrival rate of atrial impulses by the AF frequency estimated from the ECG. The model was evaluated on 30min ECG... (More)
 We study a model of the atrioventricular node function during atrial fibrillation (AF), for which the model parameters can be estimated from the ECG. The proposed model is defined by parameters which characterize the arrival rate of atrial impulses, the probability of an impulse choosing either one of the two atrioventricular nodal pathways, the refractory periods of these pathways, and the prolongation of the refractory periods. The parameters are estimated from the RR intervals using maximum likelihood estimation, except for the shorter refractory period which is estimated from the RR interval Poincare plot, and the mean arrival rate of atrial impulses by the AF frequency estimated from the ECG. The model was evaluated on 30min ECG segments from 36 AF patients. The results showed that 88% of the segments can be accurately modeled when the estimated probability density function (PDF) and an empirical PDF were at least 80% in agreement. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/4618808
 author
 Sandberg, Frida ^{LU} ; Corino, Valentina; Mainardi, Luca and Sörnmo, Leif ^{LU}
 organization
 publishing date
 2011
 type
 Chapter in Book/Report/Conference proceeding
 publication status
 published
 subject
 in
 Computers in Cardiology
 pages
 1  4
 publisher
 IEEEInstitute of Electrical and Electronics Engineers Inc.
 conference name
 Computing in Cardiology Conference (CinC) 2011
 external identifiers

 scopus:84859953728
 ISSN
 02766574
 language
 English
 LU publication?
 yes
 id
 06977c85ba6642c69c10397e677d87ac (old id 4618808)
 alternative location
 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6164487
 date added to LUP
 20150804 11:42:41
 date last changed
 20170101 05:20:39
@inproceedings{06977c85ba6642c69c10397e677d87ac, abstract = {We study a model of the atrioventricular node function during atrial fibrillation (AF), for which the model parameters can be estimated from the ECG. The proposed model is defined by parameters which characterize the arrival rate of atrial impulses, the probability of an impulse choosing either one of the two atrioventricular nodal pathways, the refractory periods of these pathways, and the prolongation of the refractory periods. The parameters are estimated from the RR intervals using maximum likelihood estimation, except for the shorter refractory period which is estimated from the RR interval Poincare plot, and the mean arrival rate of atrial impulses by the AF frequency estimated from the ECG. The model was evaluated on 30min ECG segments from 36 AF patients. The results showed that 88% of the segments can be accurately modeled when the estimated probability density function (PDF) and an empirical PDF were at least 80% in agreement.}, author = {Sandberg, Frida and Corino, Valentina and Mainardi, Luca and Sörnmo, Leif}, booktitle = {Computers in Cardiology}, issn = {02766574}, language = {eng}, pages = {14}, publisher = {IEEEInstitute of Electrical and Electronics Engineers Inc.}, title = {Modelbased analysis of the ventricular response during atrial fibrillation}, year = {2011}, }