Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs

Subtle lameness makes it difficult to ascertain which is the affected limb. A study was conducted to investigate a change in the thermal pattern and temperature of the thermal image of the paw print in a lame pelvic limb compared to a non-lame pelvic limb of dogs confirmed by orthostatic analysis....

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Main Authors: Erika Fernanda V. Garcia, Catherine A. Loughin, Dominic J. Marino, Joseph Sackman, Scott E. Umbaugh, Jiyuan Fu, Samrut Subedi, Martin L. Lesser, Meredith Akerman, João Eduardo W. Schossler
Format: Article
Language:English
Published: Tripoli University 2017-12-01
Series:Open Veterinary Journal
Subjects:
Online Access:http://www.openveterinaryjournal.com/OVJ-2017-06-099%20E.F.V.%20Garcia%20et%20al.pdf
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author Erika Fernanda V. Garcia
Catherine A. Loughin
Dominic J. Marino
Joseph Sackman
Scott E. Umbaugh
Jiyuan Fu
Samrut Subedi
Martin L. Lesser
Meredith Akerman
João Eduardo W. Schossler
author_facet Erika Fernanda V. Garcia
Catherine A. Loughin
Dominic J. Marino
Joseph Sackman
Scott E. Umbaugh
Jiyuan Fu
Samrut Subedi
Martin L. Lesser
Meredith Akerman
João Eduardo W. Schossler
author_sort Erika Fernanda V. Garcia
collection DOAJ
description Subtle lameness makes it difficult to ascertain which is the affected limb. A study was conducted to investigate a change in the thermal pattern and temperature of the thermal image of the paw print in a lame pelvic limb compared to a non-lame pelvic limb of dogs confirmed by orthostatic analysis. Fourteen client owned dogs with a unilateral pelvic limb lameness and 14 healthy employee dogs were examined and the pelvic limbs radiographed. Thermal images of the paw print were taken after each dog was kept in a static position on a foam mat for 30 seconds. Average temperatures and thermographic patterns were analyzed. Analysis was performed in a static position. The asymmetry index for each stance variable and optimal cutoff point for the peak vertical force and thermal image temperatures were calculated. Image pattern analysis revealed 88% success in differentiating the lame group, and 100% in identifying the same thermal pattern in the healthy group. The mean of the peak vertical force revealed a 10.0% difference between the left and right pelvic limb in healthy dogs and a 72.4% between the lame and non-lame limb in the lame dog group. Asymmetry index analysis revealed 5% in the healthy group and 36.2% in the lame group. The optimal cutoff point for the peak vertical force to determine lameness was 41.77% (AUC = 0.93) and for MII 0.943% (AUC = 0.72). The results of this study highlight the change in the thermal pattern of the paw print in the lame pelvic limb compared to a non-lame pelvic limb in the lame group and the healthy group. Medical infrared imaging of the paw prints can be utilized to screen for the lame limb in dogs.
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spelling doaj.art-5cd05140cad24c9ba07b9b270813ddd12022-12-21T21:27:28ZengTripoli UniversityOpen Veterinary Journal2218-60502218-60502017-12-0174342348http://dx.doi.org/10.4314/ovj.v7i4.10Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogsErika Fernanda V. Garcia0Catherine A. Loughin1Dominic J. Marino2Joseph Sackman3Scott E. Umbaugh4Jiyuan Fu5Samrut Subedi6Martin L. Lesser7Meredith Akerman8João Eduardo W. Schossler9Department of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY 11803, USADepartment of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY 11803, USADepartment of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY 11803, USADepartment of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY 11803, USAComputer Vision and Image Processing Laboratory, Electrical and Computer Engineering Department, Southern Illinois University at Edwardsville, Edwardsville, IL 62026-1801, USAComputer Vision and Image Processing Laboratory, Electrical and Computer Engineering Department, Southern Illinois University at Edwardsville, Edwardsville, IL 62026-1801, USAComputer Vision and Image Processing Laboratory, Electrical and Computer Engineering Department, Southern Illinois University at Edwardsville, Edwardsville, IL 62026-1801, USANorth Shore - LIJ Health System Feinstein Institute for Medical Research, Biostatistics Unit, Manhasset, NY 11030, USANorth Shore - LIJ Health System Feinstein Institute for Medical Research, Biostatistics Unit, Manhasset, NY 11030, USAUniversidade Federal de Santa Maria, Santa Maria, BrazilSubtle lameness makes it difficult to ascertain which is the affected limb. A study was conducted to investigate a change in the thermal pattern and temperature of the thermal image of the paw print in a lame pelvic limb compared to a non-lame pelvic limb of dogs confirmed by orthostatic analysis. Fourteen client owned dogs with a unilateral pelvic limb lameness and 14 healthy employee dogs were examined and the pelvic limbs radiographed. Thermal images of the paw print were taken after each dog was kept in a static position on a foam mat for 30 seconds. Average temperatures and thermographic patterns were analyzed. Analysis was performed in a static position. The asymmetry index for each stance variable and optimal cutoff point for the peak vertical force and thermal image temperatures were calculated. Image pattern analysis revealed 88% success in differentiating the lame group, and 100% in identifying the same thermal pattern in the healthy group. The mean of the peak vertical force revealed a 10.0% difference between the left and right pelvic limb in healthy dogs and a 72.4% between the lame and non-lame limb in the lame dog group. Asymmetry index analysis revealed 5% in the healthy group and 36.2% in the lame group. The optimal cutoff point for the peak vertical force to determine lameness was 41.77% (AUC = 0.93) and for MII 0.943% (AUC = 0.72). The results of this study highlight the change in the thermal pattern of the paw print in the lame pelvic limb compared to a non-lame pelvic limb in the lame group and the healthy group. Medical infrared imaging of the paw prints can be utilized to screen for the lame limb in dogs.http://www.openveterinaryjournal.com/OVJ-2017-06-099%20E.F.V.%20Garcia%20et%20al.pdfCruciateInfrared imagingLamenessOrthostatic analysis
spellingShingle Erika Fernanda V. Garcia
Catherine A. Loughin
Dominic J. Marino
Joseph Sackman
Scott E. Umbaugh
Jiyuan Fu
Samrut Subedi
Martin L. Lesser
Meredith Akerman
João Eduardo W. Schossler
Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
Open Veterinary Journal
Cruciate
Infrared imaging
Lameness
Orthostatic analysis
title Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
title_full Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
title_fullStr Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
title_full_unstemmed Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
title_short Medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
title_sort medical infrared imaging and orthostatic analysis to determine lameness in the pelvic limbs of dogs
topic Cruciate
Infrared imaging
Lameness
Orthostatic analysis
url http://www.openveterinaryjournal.com/OVJ-2017-06-099%20E.F.V.%20Garcia%20et%20al.pdf
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