T
T. Lanthier
Researcher at Université de Montréal
Publications - 13
Citations - 135
T. Lanthier is an academic researcher from Université de Montréal. The author has contributed to research in topics: Aortic valve & Mitral valve. The author has an hindex of 6, co-authored 13 publications receiving 135 citations.
Papers
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Journal ArticleDOI
Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs. Part 2. Effects of neuromuscular blockade, sternotomy and pacemaker control, and a two-week recovery period.
Louis-Gilles Durand,Y. E. Langlois,T. Lanthier,R. Chiarella,P. Coppens,S. Carioto,S. Bertrand-Bradley +6 more
TL;DR: In this article, the effects of neuromuscular blockade, sternotomy and atrio-ventricular pacing, and a two-week recovery period on the spectra and acoustic transmission of mitral M1 and aortic A2 sound components in dogs are described.
Journal ArticleDOI
Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs. Part 1. Modelling the heart/thorax acoustic system.
Louis-Gilles Durand,Y. E. Langlois,T. Lanthier,R. Chiarella,P. Coppens,S. Carioto,S. Bertrand-Bradley +6 more
TL;DR: Application of the model to study the spectral characteristics and the acoustic transmission properties of the mitral component M1 of the first heart sound and of the aortic component A2 of the second heart sound in the dog shows that the heart/thorax acoustic system acts like a bandpass filter having a higher attenuation for A2 than for M1.
Journal ArticleDOI
Optimal time-window duration for computing time/frequency representations of normal phonocardiograms in dogs.
Ghaleb Jamous,Louis-Gilles Durand,Y. E. Langlois,T. Lanthier,Philippe Pibarot,Suzanne Carioto +5 more
TL;DR: Results show that the amplitude of the coherence function computed between the left ventricular and the thoracic phonocardiograms is overestimated and the optimal range of the time-window duration is between 16 and 32 ms.
Journal ArticleDOI
Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs. Part 4: Effect of modulating cardiac inotropy.
Louis-Gilles Durand,Y. E. Langlois,T. Lanthier,R. Chiarella,P. Coppens,S. Carioto,S. Bertrand-Bradley +6 more
TL;DR: In this paper, a surgical protocol was designed to implant in dogs a programmable atrioventricular pacemaker and to destroy the bundle of His with one to four 0.1 ml formaldehyde injections.
Journal ArticleDOI
Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs. Part 3. Effects of altering heart rate and P-R interval.
Louis-Gilles Durand,Y. E. Langlois,T. Lanthier,R. Chiarella,P. Coppens,S. Carioto,S. Bertrand-Bradley +6 more
TL;DR: Results indicate that the major effects of varying the P-R interval are a strong change in the intensity of M1 and modifications of its acoustic transmission across the heart/thorax acoustic system.