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Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation
We created an overall assessment metric using a deep learning autoencoder to directly compare clinical outcomes in a comparison of lower limb amputees using two different prosthetic devices—a mechanical knee and a microprocessor-controlled knee. Eight clinical outcomes were distilled into a single m...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9598529/ https://www.ncbi.nlm.nih.gov/pubmed/36290540 http://dx.doi.org/10.3390/bioengineering9100572 |
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author | Tabashum, Thasina Xiao, Ting Jayaraman, Chandrasekaran Mummidisetty, Chaithanya K. Jayaraman, Arun Albert, Mark V. |
author_facet | Tabashum, Thasina Xiao, Ting Jayaraman, Chandrasekaran Mummidisetty, Chaithanya K. Jayaraman, Arun Albert, Mark V. |
author_sort | Tabashum, Thasina |
collection | PubMed |
description | We created an overall assessment metric using a deep learning autoencoder to directly compare clinical outcomes in a comparison of lower limb amputees using two different prosthetic devices—a mechanical knee and a microprocessor-controlled knee. Eight clinical outcomes were distilled into a single metric using a seven-layer deep autoencoder, with the developed metric compared to similar results from principal component analysis (PCA). The proposed methods were used on data collected from ten participants with a dysvascular transfemoral amputation recruited for a prosthetics research study. This single summary metric permitted a cross-validated reconstruction of all eight scores, accounting for 83.29% of the variance. The derived score is also linked to the overall functional ability in this limited trial population, as improvements in each base clinical score led to increases in this developed metric. There was a highly significant increase in this autoencoder-based metric when the subjects used the microprocessor-controlled knee (p < 0.001, repeated measures ANOVA). A traditional PCA metric led to a similar interpretation but captured only 67.3% of the variance. The autoencoder composite score represents a single-valued, succinct summary that can be useful for the holistic assessment of highly variable, individual scores in limited clinical datasets. |
format | Online Article Text |
id | pubmed-9598529 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-95985292022-10-27 Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation Tabashum, Thasina Xiao, Ting Jayaraman, Chandrasekaran Mummidisetty, Chaithanya K. Jayaraman, Arun Albert, Mark V. Bioengineering (Basel) Article We created an overall assessment metric using a deep learning autoencoder to directly compare clinical outcomes in a comparison of lower limb amputees using two different prosthetic devices—a mechanical knee and a microprocessor-controlled knee. Eight clinical outcomes were distilled into a single metric using a seven-layer deep autoencoder, with the developed metric compared to similar results from principal component analysis (PCA). The proposed methods were used on data collected from ten participants with a dysvascular transfemoral amputation recruited for a prosthetics research study. This single summary metric permitted a cross-validated reconstruction of all eight scores, accounting for 83.29% of the variance. The derived score is also linked to the overall functional ability in this limited trial population, as improvements in each base clinical score led to increases in this developed metric. There was a highly significant increase in this autoencoder-based metric when the subjects used the microprocessor-controlled knee (p < 0.001, repeated measures ANOVA). A traditional PCA metric led to a similar interpretation but captured only 67.3% of the variance. The autoencoder composite score represents a single-valued, succinct summary that can be useful for the holistic assessment of highly variable, individual scores in limited clinical datasets. MDPI 2022-10-18 /pmc/articles/PMC9598529/ /pubmed/36290540 http://dx.doi.org/10.3390/bioengineering9100572 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Tabashum, Thasina Xiao, Ting Jayaraman, Chandrasekaran Mummidisetty, Chaithanya K. Jayaraman, Arun Albert, Mark V. Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation |
title | Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation |
title_full | Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation |
title_fullStr | Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation |
title_full_unstemmed | Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation |
title_short | Autoencoder Composite Scoring to Evaluate Prosthetic Performance in Individuals with Lower Limb Amputation |
title_sort | autoencoder composite scoring to evaluate prosthetic performance in individuals with lower limb amputation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9598529/ https://www.ncbi.nlm.nih.gov/pubmed/36290540 http://dx.doi.org/10.3390/bioengineering9100572 |
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