Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI.
Soft tissue artefact affects the determination of skeletal kinematics. Thus, it is important to know the accuracy and limitations of kinematic parameters determined and modelled based on skin marker data. Here, the curvature angles, as well as the rotations of the lumbar and thoracic segments, of se...
Guardado en:
Autores principales: | , , , , , , |
---|---|
Formato: | article |
Lenguaje: | EN |
Publicado: |
Public Library of Science (PLoS)
2014
|
Materias: | |
Acceso en línea: | https://doaj.org/article/502e3c01de274dabba47c525e38897a7 |
Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
id |
oai:doaj.org-article:502e3c01de274dabba47c525e38897a7 |
---|---|
record_format |
dspace |
spelling |
oai:doaj.org-article:502e3c01de274dabba47c525e38897a72021-11-18T08:22:27ZSoft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI.1932-620310.1371/journal.pone.0095426https://doaj.org/article/502e3c01de274dabba47c525e38897a72014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24748013/?tool=EBIhttps://doaj.org/toc/1932-6203Soft tissue artefact affects the determination of skeletal kinematics. Thus, it is important to know the accuracy and limitations of kinematic parameters determined and modelled based on skin marker data. Here, the curvature angles, as well as the rotations of the lumbar and thoracic segments, of seven healthy subjects were determined in the sagittal plane using a skin marker set and compared to measurements taken in an open upright MRI scanner in order to understand the influence of soft tissue artefact at the back. The mean STA in the flexed compared to the extended positions were 10.2±6.1 mm (lumbar)/9.3±4.2 mm (thoracic) and 10.7±4.8 mm (lumbar)/9.2±4.9 mm (thoracic) respectively. A linear regression of the lumbar and thoracic curvatures between the marker-based measurements and MRI-based measurements resulted in coefficients of determination, R2, of 0.552 and 0.385 respectively. Skin marker measurements therefore allow for the assessment of changes in the lumbar and thoracic curvature angles, but the absolute values suffer from uncertainty. Nevertheless, this marker set appears to be suitable for quantifying lumbar and thoracic spinal changes between quasi-static whole body postural changes.Roland ZempRenate ListTurgut GülayJean Pierre ElsigJaroslav NaxeraWilliam R TaylorSilvio LorenzettiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 4, p e95426 (2014) |
institution |
DOAJ |
collection |
DOAJ |
language |
EN |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Roland Zemp Renate List Turgut Gülay Jean Pierre Elsig Jaroslav Naxera William R Taylor Silvio Lorenzetti Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI. |
description |
Soft tissue artefact affects the determination of skeletal kinematics. Thus, it is important to know the accuracy and limitations of kinematic parameters determined and modelled based on skin marker data. Here, the curvature angles, as well as the rotations of the lumbar and thoracic segments, of seven healthy subjects were determined in the sagittal plane using a skin marker set and compared to measurements taken in an open upright MRI scanner in order to understand the influence of soft tissue artefact at the back. The mean STA in the flexed compared to the extended positions were 10.2±6.1 mm (lumbar)/9.3±4.2 mm (thoracic) and 10.7±4.8 mm (lumbar)/9.2±4.9 mm (thoracic) respectively. A linear regression of the lumbar and thoracic curvatures between the marker-based measurements and MRI-based measurements resulted in coefficients of determination, R2, of 0.552 and 0.385 respectively. Skin marker measurements therefore allow for the assessment of changes in the lumbar and thoracic curvature angles, but the absolute values suffer from uncertainty. Nevertheless, this marker set appears to be suitable for quantifying lumbar and thoracic spinal changes between quasi-static whole body postural changes. |
format |
article |
author |
Roland Zemp Renate List Turgut Gülay Jean Pierre Elsig Jaroslav Naxera William R Taylor Silvio Lorenzetti |
author_facet |
Roland Zemp Renate List Turgut Gülay Jean Pierre Elsig Jaroslav Naxera William R Taylor Silvio Lorenzetti |
author_sort |
Roland Zemp |
title |
Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI. |
title_short |
Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI. |
title_full |
Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI. |
title_fullStr |
Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI. |
title_full_unstemmed |
Soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright MRI. |
title_sort |
soft tissue artefacts of the human back: comparison of the sagittal curvature of the spine measured using skin markers and an open upright mri. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
https://doaj.org/article/502e3c01de274dabba47c525e38897a7 |
work_keys_str_mv |
AT rolandzemp softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri AT renatelist softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri AT turgutgulay softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri AT jeanpierreelsig softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri AT jaroslavnaxera softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri AT williamrtaylor softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri AT silviolorenzetti softtissueartefactsofthehumanbackcomparisonofthesagittalcurvatureofthespinemeasuredusingskinmarkersandanopenuprightmri |
_version_ |
1718421859949608960 |