Asymmetry Assessment Using Surface Topography in Healthy Adolescents
The ability to assess geometric asymmetry in the torsos of individuals is important for detecting Adolescent Idiopathic Scoliosis (AIS). A markerless technique using Surface Topography (ST) has been introduced as a non-invasive alternative to standard diagnostic radiographs. The technique has been u...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-08-01
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| Series: | Symmetry |
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| Online Access: | http://www.mdpi.com/2073-8994/7/3/1436 |
| _version_ | 1817996286938316800 |
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| author | Connie Ho Eric C. Parent Elise Watkins Marc J. Moreau Douglas Hedden Marwan El-Rich Samer Adeeb |
| author_facet | Connie Ho Eric C. Parent Elise Watkins Marc J. Moreau Douglas Hedden Marwan El-Rich Samer Adeeb |
| author_sort | Connie Ho |
| collection | DOAJ |
| description | The ability to assess geometric asymmetry in the torsos of individuals is important for detecting Adolescent Idiopathic Scoliosis (AIS). A markerless technique using Surface Topography (ST) has been introduced as a non-invasive alternative to standard diagnostic radiographs. The technique has been used to identify asymmetry patterns associated with AIS. However, the presence and nature of asymmetries in the healthy population has not been properly studied. The purpose of this study is therefore to identify asymmetries and potential relationships to development factors such as age, gender, hand dominance and unilateral physical activity in healthy adolescents. Full torso scans of 83 participants were analyzed. Using Geomagic, deviation contour maps (DCMs) were created by reflecting the torso along the best plane of sagittal symmetry with each spectrum normalized. Two classes of asymmetry were observed: twist and thickness each with subgroupings. Averaged interobserver and intraobserver Kappas for twist subgroupings were 0.84 and 0.84, respectively, and for thickness subgroupings were 0.53 and 0.63 respectively. Further significant relationships were observed between specific types of asymmetry and gender such as females displaying predominately twist asymmetry, and males with thickness asymmetry. However, no relationships were found between type of asymmetry and age, hand dominance or unilateral physical activity. Understanding asymmetries in healthy subjects will continue to enhance assessment ability of the markerless ST technique. |
| first_indexed | 2024-04-14T02:20:05Z |
| format | Article |
| id | doaj.art-99ff9dfb35ed4375a8ac20a133117ce7 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-04-14T02:20:05Z |
| publishDate | 2015-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-99ff9dfb35ed4375a8ac20a133117ce72022-12-22T02:18:03ZengMDPI AGSymmetry2073-89942015-08-01731436145410.3390/sym7031436sym7031436Asymmetry Assessment Using Surface Topography in Healthy AdolescentsConnie Ho0Eric C. Parent1Elise Watkins2Marc J. Moreau3Douglas Hedden4Marwan El-Rich5Samer Adeeb6Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2V4, CanadaDepartment of Physical Therapy, University of Alberta, Edmonton, AB T6G 2G4, CanadaDepartment of Rehabilitation Medicine, University of Alberta, Edmonton, AB T6G 2G4, CanadaDepartment of Surgery, University of Alberta, Edmonton, AB T6G 2B7, CanadaDepartment of Surgery, University of Alberta, Edmonton, AB T6G 2B7, CanadaDepartment of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 2W2, CanadaDepartment of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 2W2, CanadaThe ability to assess geometric asymmetry in the torsos of individuals is important for detecting Adolescent Idiopathic Scoliosis (AIS). A markerless technique using Surface Topography (ST) has been introduced as a non-invasive alternative to standard diagnostic radiographs. The technique has been used to identify asymmetry patterns associated with AIS. However, the presence and nature of asymmetries in the healthy population has not been properly studied. The purpose of this study is therefore to identify asymmetries and potential relationships to development factors such as age, gender, hand dominance and unilateral physical activity in healthy adolescents. Full torso scans of 83 participants were analyzed. Using Geomagic, deviation contour maps (DCMs) were created by reflecting the torso along the best plane of sagittal symmetry with each spectrum normalized. Two classes of asymmetry were observed: twist and thickness each with subgroupings. Averaged interobserver and intraobserver Kappas for twist subgroupings were 0.84 and 0.84, respectively, and for thickness subgroupings were 0.53 and 0.63 respectively. Further significant relationships were observed between specific types of asymmetry and gender such as females displaying predominately twist asymmetry, and males with thickness asymmetry. However, no relationships were found between type of asymmetry and age, hand dominance or unilateral physical activity. Understanding asymmetries in healthy subjects will continue to enhance assessment ability of the markerless ST technique.http://www.mdpi.com/2073-8994/7/3/1436scoliosissurfacetopographyasymmetryhealthyadolescents |
| spellingShingle | Connie Ho Eric C. Parent Elise Watkins Marc J. Moreau Douglas Hedden Marwan El-Rich Samer Adeeb Asymmetry Assessment Using Surface Topography in Healthy Adolescents Symmetry scoliosis surface topography asymmetry healthy adolescents |
| title | Asymmetry Assessment Using Surface Topography in Healthy Adolescents |
| title_full | Asymmetry Assessment Using Surface Topography in Healthy Adolescents |
| title_fullStr | Asymmetry Assessment Using Surface Topography in Healthy Adolescents |
| title_full_unstemmed | Asymmetry Assessment Using Surface Topography in Healthy Adolescents |
| title_short | Asymmetry Assessment Using Surface Topography in Healthy Adolescents |
| title_sort | asymmetry assessment using surface topography in healthy adolescents |
| topic | scoliosis surface topography asymmetry healthy adolescents |
| url | http://www.mdpi.com/2073-8994/7/3/1436 |
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