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Leg Edema Quantification for Heart Failure Patients via 3D Imaging

Heart failure is a common cardiac disease in elderly patients. After discharge, approximately 50% of all patients are readmitted to a hospital within six months. Recent studies show that home monitoring of heart failure patients can reduce the number of readmissions. Still, a large number of false p...

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Autores principales: Hayn, Dieter, Fruhwald, Friedrich, Riedel, Arthur, Falgenhauer, Markus, Schreier, Günter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3812619/
https://www.ncbi.nlm.nih.gov/pubmed/23948874
http://dx.doi.org/10.3390/s130810584
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author Hayn, Dieter
Fruhwald, Friedrich
Riedel, Arthur
Falgenhauer, Markus
Schreier, Günter
author_facet Hayn, Dieter
Fruhwald, Friedrich
Riedel, Arthur
Falgenhauer, Markus
Schreier, Günter
author_sort Hayn, Dieter
collection PubMed
description Heart failure is a common cardiac disease in elderly patients. After discharge, approximately 50% of all patients are readmitted to a hospital within six months. Recent studies show that home monitoring of heart failure patients can reduce the number of readmissions. Still, a large number of false positive alarms as well as underdiagnoses in other cases require more accurate alarm generation algorithms. New low-cost sensors for leg edema detection could be the missing link to help home monitoring to its breakthrough. We evaluated a 3D camera-based measurement setup in order to geometrically detect and quantify leg edemas. 3D images of legs were taken and geometric parameters were extracted semi-automatically from the images. Intra-subject variability for five healthy subjects was evaluated. Thereafter, correlation of 3D parameters with body weight and leg circumference was assessed during a clinical study at the Medical University of Graz. Strong correlation was found in between both reference values and instep height, while correlation in between curvature of the lower leg and references was very low. We conclude that 3D imaging might be a useful and cost-effective extension of home monitoring for heart failure patients, though further (prospective) studies are needed.
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spelling pubmed-38126192013-10-30 Leg Edema Quantification for Heart Failure Patients via 3D Imaging Hayn, Dieter Fruhwald, Friedrich Riedel, Arthur Falgenhauer, Markus Schreier, Günter Sensors (Basel) Article Heart failure is a common cardiac disease in elderly patients. After discharge, approximately 50% of all patients are readmitted to a hospital within six months. Recent studies show that home monitoring of heart failure patients can reduce the number of readmissions. Still, a large number of false positive alarms as well as underdiagnoses in other cases require more accurate alarm generation algorithms. New low-cost sensors for leg edema detection could be the missing link to help home monitoring to its breakthrough. We evaluated a 3D camera-based measurement setup in order to geometrically detect and quantify leg edemas. 3D images of legs were taken and geometric parameters were extracted semi-automatically from the images. Intra-subject variability for five healthy subjects was evaluated. Thereafter, correlation of 3D parameters with body weight and leg circumference was assessed during a clinical study at the Medical University of Graz. Strong correlation was found in between both reference values and instep height, while correlation in between curvature of the lower leg and references was very low. We conclude that 3D imaging might be a useful and cost-effective extension of home monitoring for heart failure patients, though further (prospective) studies are needed. Molecular Diversity Preservation International (MDPI) 2013-08-14 /pmc/articles/PMC3812619/ /pubmed/23948874 http://dx.doi.org/10.3390/s130810584 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Hayn, Dieter
Fruhwald, Friedrich
Riedel, Arthur
Falgenhauer, Markus
Schreier, Günter
Leg Edema Quantification for Heart Failure Patients via 3D Imaging
title Leg Edema Quantification for Heart Failure Patients via 3D Imaging
title_full Leg Edema Quantification for Heart Failure Patients via 3D Imaging
title_fullStr Leg Edema Quantification for Heart Failure Patients via 3D Imaging
title_full_unstemmed Leg Edema Quantification for Heart Failure Patients via 3D Imaging
title_short Leg Edema Quantification for Heart Failure Patients via 3D Imaging
title_sort leg edema quantification for heart failure patients via 3d imaging
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3812619/
https://www.ncbi.nlm.nih.gov/pubmed/23948874
http://dx.doi.org/10.3390/s130810584
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