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Acoustic transmission of the aortic component of the second heart sound within the ascending aorta of dogs

Autor: Louis-Gilles Durand, S. Bertrand-Bradley, P. Coppens, Y. E. Langlois, S. Carioto, T. Lanthier, R. Chiarella

Publikováno v: Medical & Biological Engineering & Computing. 29:381-386

The spectral characteristics of the acoustic transmission of the aortic component of the second heart sound within the ascending aorta was studied using a Millar dual-micromanometer catheter. The tip micromanometer was located close to the aortic val

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::468209495d144217f2543dd3cd8f834e
https://doi.org/10.1007/bf02441658

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Interaction between the aortic valve leaflets and a Millar dual-micromanometer catheter during recording of the aortic component of the second heart sound in dogs

Autor: Louis-Gilles Durand, T. Lanthier, R. Chiarella, S. Bertrand-Bradley, P. Coppens, S. Carioto, Y. E. Langlois

Publikováno v: Medical & Biological Engineering & Computing. 29:373-380

The influence of the closure of the aortic valve leaflets on a dual-micromanometer Millar catheter is investigated with respect to the power spectrum of the aortic component (A2) of the second heart sound in dogs. The catheter inserted through the ao

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2f09b39596b98f4e727f78160964a33
https://doi.org/10.1007/bf02441657

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Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs

Autor: S. Bertrand-Bradley, Y. E. Langlois, T. Lanthier, R. Chiarella, S. Carioto, Louis-Gilles Durand, P. Coppens

Publikováno v: Medical & Biological Engineering & Computing. 28:439-445

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. The heart rate and P-R interval were paced at 100 beats min-1 and 75 ms, r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5251b8b7225c95b2a75f5a3311c02e9e
https://doi.org/10.1007/bf02441967

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Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs

Autor: Y. E. Langlois, S. Bertrand-Bradley, Louis-Gilles Durand, S. Carioto, T. Lanthier, R. Chiarella, P. Coppens

Publikováno v: Medical and Biological Engineering and Computing. 28:278-286

The paper describes 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. Results indicate that neu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d907d3a5e9332e04e6f621b1b5392147
https://doi.org/10.1007/bf02446143

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An assessment of the risk of neoplasia in long-term ileal reservoirs using the DMH rodent model

Autor: Jacques Heppell, M F Brais, S Carioto, C Potvin, Y Boivin, M A Durh, M De Zubiria

Publikováno v: Diseases of the Colon & Rectum. 33:26-31

This study was undertaken to determine if the construction of an ileal reservoir induces mucosal changes that can potentiate the effect of a chemical carcinogen (1,2-dimethylhydrazine) on ileal mucosa. Animals were divided into three groups: 1) sham

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13461e15546209e89149ceb4ffdb7d8d
https://doi.org/10.1007/bf02053197

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Contribution Of Left Venmicular Vibrations To The Spectrum Of Aortic Valve Closure Sound

Autor: S. Bertrand-Bradley, R. Chiarella, Louis-Gilles Durand, S. Carioto, T. Lanthier, Y.-F. Langlois, Philippe Pibarot, P. Coppens

Publikováno v: [1990] Proceedings of the Twelfth Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f335ae7f9da1f1483d5ee554d0025bcb
https://doi.org/10.1109/iembs.1990.691217

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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

Autor: T. Lanthier, S. Bertrand-Bradley, P. Coppens, Y. E. Langlois, S. Carioto, R. Chiarella, Louis-Gilles Durand

Publikováno v: Medicalbiological engineeringcomputing. 28(5)

A surgical protocol was designed to implant, in seven dogs, a programmable sequential atrioventricular pacemaker after destruction of the bundle of His to produce a chronic heart block. The heart rate and P-R interval were then varied independently a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a747f774cb9adeed726d43ec291fd946
https://pubmed.ncbi.nlm.nih.gov/2277543

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Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs. Part 1 Modelling the heart/thorax acoustic system

Autor: Louis-Gilles Durand, T. Lanthier, P. Coppens, R. Chiarella, S. Carioto, S. Bertrand-Bradley, Y. E. Langlois

Publikováno v: Medical & Biological Engineering & Computing. 28:612-612

A system model based on the simultaneous recording and analysis of the intracardiac and thoracic phonocardiograms to estimate the time-varying properties of the heart/thorax acoustic system of the dog is described. The presence of instrumental noise

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92ee9da01b4c37f628a2ebcbd63a9899
https://doi.org/10.1007/bf02442619

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