Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Y.E. Langlois"'
Publikováno v:
Journal of Vascular Surgery. 19:650-657
Purpose: The purpose of this study was to provide a quantitative evaluation of the effect of adjacent segment lesions on disease classification in lower limb arteries by ultrasonic duplex scanning. Methods: Lower limb arterial duplex scanning from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e857be19db2dc1864b5f6992f7765f5a
https://doi.org/10.1016/s0741-5214(94)70038-9
https://doi.org/10.1016/s0741-5214(94)70038-9
Autor:
Louis-Gilles Durand, Paul Roy, Pierre N. Robillard, Y.E. Langlois, Ghislaine O. Roederer, Louis Allard, Manon Beaudoin, Guy Cloutier
Publikováno v:
Ultrasound in Medicine & Biology. 17:211-223
In the present study, a computer processing method was developed to objectively classify disease in the lower limb arteries evaluated by noninvasive ultrasonic duplex scanning. This method analyzes Doppler blood flow signals, extracts diagnostic feat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d80cedbb9634ac4679c95702c53da7ff
https://doi.org/10.1016/0301-5629(91)90042-u
https://doi.org/10.1016/0301-5629(91)90042-u
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991.
spectrogram obtained by complex (AR) modelling was investigated using -the Yule-Walker equations. The spectral envelope area (SEA) was used to evaluate the effect of window duration on AR spectrogram, and a statistical analysis indicated that the SEA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::831fe99a8ef2f2f6aec12e01312ea565
https://doi.org/10.1109/iembs.1991.683884
https://doi.org/10.1109/iembs.1991.683884
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cfe4324758eab4ab97e1337a77b12a3
https://doi.org/10.1109/iembs.1991.683904
https://doi.org/10.1109/iembs.1991.683904
Autor:
Louis-Gilles Durand, Philippe Pibarot, S. Carloto, Y.E. Langlois, S. Bertrand-Bradley, B. Lussier, F. Pellerin, T. Lanthier
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6af3741aad842d3d7ca9e4ac67bc74a5
https://doi.org/10.1109/iembs.1991.684913
https://doi.org/10.1109/iembs.1991.684913
Autor:
Louis-Gilles Durand, A. Solignac, Y. Latour, Louis Allard, Guy Cloutier, Y.E. Langlois, F. Lemire, M. Jarry
Publikováno v:
Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society.
Ultrasonic Doppler signals were recorded in the left ventricular outflow tract of 48 patients to detect aortic valve stenosis. Extraction of Doppler spectral parameters was based on the characterization of spectral broadening. Results showed that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75d119680b3d1b7092293e4117d59d17
https://doi.org/10.1109/iembs.1989.95574
https://doi.org/10.1109/iembs.1989.95574
Autor:
P. Roy, Louis-Gilles Durand, Louis Allard, Ghislaine O. Roederer, M. Beaudoin, Y.E. Langlois, Guy Cloutier, R. Robillard
Publikováno v:
Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society.
A computer processing method was developed to analyze lower limb Doppler signals, extract diagnostic features from Doppler spectrograms, and classify the severity of the arterial disease. A pattern recognition method (Bayes model) was used to discrim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7217d9997f91e3a3837e3ee56e373ec8
https://doi.org/10.1109/iembs.1989.95575
https://doi.org/10.1109/iembs.1989.95575
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
The diagnostic performance of two spectral techniques (the FFT and the AR modelling) to compute Doppler spectrograms and two methods (spectrum-by-spectrum threshold and edge detection by image processing) to estimate the frequency contours of the Dop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5717940573f5ff100c3dce7673cbc559
https://doi.org/10.1109/iembs.1992.590489
https://doi.org/10.1109/iembs.1992.590489
Publikováno v:
Angiology. 34:679-687
Duplex scanning with spectral analysis of the pulsed Doppler signal are currently used to detect and classify disease at the carotid bifurcation. Al though the sensitivity of the test exceeds 90%, the method has a lower speci ficity which ranges betw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b46a42a98bd671158b8896d16e52fa0
https://doi.org/10.1177/000331978303401006
https://doi.org/10.1177/000331978303401006
Autor:
Kurt A. Jäger, D.J. Phillips, Jean F. Primozich, D.Eugene Strandness, Ramona Lawrence, Y.E. Langlois, Luigi Lusiani, Ghislaine O. Roederer
Publikováno v:
Journal of Vascular Surgery. 1:62-72
The natural history of the nonoperated carotid artery opposite an endarterectomy was examined in 134 patients by means of ultrasonic duplex scanning over a period extending to 48 months. None of the nine deaths that occurred during follow-up was stro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1d36234087b1a606b1809b43c37b199
https://doi.org/10.1067/mva.1984.avs0010062
https://doi.org/10.1067/mva.1984.avs0010062