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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2013
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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. |
format | Online Article Text |
id | pubmed-3812619 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Molecular Diversity Preservation International (MDPI) |
record_format | MEDLINE/PubMed |
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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