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Three-dimensional optical analysis of chest wall motion

Three-dimensional optical analysis of chest wall motion G. FERRIGNO, P. CARNEVALI, A. ALIVERTI, F. MOLTENI, G. BEULCKE, AND A. PEDOTTI Centro di Bioingegneria, Politecnico di Milan0 Dipartimento di Bioingegneria, Fondazione Pro Juventute Istituto di Ricovero e Cura a Carattere Scientifico, I-20148 Milan, Italy Ferrigno, G., P. Carnevali, A. Aliverti, F. Molteni, G. Beulcke, and A. Pedotti. . J. A&. Physiol. 77(3): 1224-1231,1994.A method for kinematic is presented, based on a television-image processor that allows a assessment volume change the trunk by automatically computing the coordinates several passive markers placed on relevant landmarks the thorax and abdomen. The parallel computation used for the image processing allows for a real time recognition the passive markers with the necessary accuracy. A geometric model also allows the online computation the contribution to the volume by the different parts. For this purpose, the model presented here is based on 54 tetrahedrons that can be grouped into 9 compartments and 3 sections representing 1) upper thorax (mainly reflecting the action neck and parasternal muscles and the effect pleural pressure), 2) lower thorax (mainly reflecting the action diaphragm and the effect pleural and abdominal pressure), and 3) abdomen (mainly reflecting the actions diaphragm and abdominal muscles). By this model, the volume can http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Physiology The American Physiological Society

Three-dimensional optical analysis of chest wall motion

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Publisher
The American Physiological Society
Copyright
Copyright © 1994 the American Physiological Society
ISSN
8750-7587
eISSN
1522-1601
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Abstract

G. FERRIGNO, P. CARNEVALI, A. ALIVERTI, F. MOLTENI, G. BEULCKE, AND A. PEDOTTI Centro di Bioingegneria, Politecnico di Milan0 Dipartimento di Bioingegneria, Fondazione Pro Juventute Istituto di Ricovero e Cura a Carattere Scientifico, I-20148 Milan, Italy Ferrigno, G., P. Carnevali, A. Aliverti, F. Molteni, G. Beulcke, and A. Pedotti. . J. A&. Physiol. 77(3): 1224-1231,1994.A method for kinematic is presented, based on a television-image processor that allows a assessment volume change the trunk by automatically computing the coordinates several passive markers placed on relevant landmarks the thorax and abdomen. The parallel computation used for the image processing allows for a real time recognition the passive markers with the necessary accuracy. A geometric model also allows the online computation the contribution to the volume by the different parts. For this purpose, the model presented here is based on 54 tetrahedrons that can be grouped into 9 compartments and 3 sections representing 1) upper thorax (mainly reflecting the action neck and parasternal muscles and the effect pleural pressure), 2) lower thorax (mainly reflecting the action diaphragm and the effect pleural and abdominal pressure), and 3) abdomen (mainly reflecting the actions diaphragm and abdominal muscles). By this model, the volume can

Journal

Journal of Applied Physiology – The American Physiological Society

Published: Sep 1, 1994

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