Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study

Abstract The EOS is a medical imaging system that incorporates simultaneous orthogonal images, producing three-dimensional (3D) reconstructions of the whole skeletal system in various functional positions. Despite growing interest in the pelvic 3D position, the validity of the EOS has not yet been w...

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Autores principales:	Jung-Taek Kim, Dong hoon Lee, Han-Dong Lee, Han-Bit Shin, Bumhee Park, Sunghoon Park, Hyung Keun Song
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fec9571990cb4c379f2e2427f54d3f58
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spelling	oai:doaj.org-article:fec9571990cb4c379f2e2427f54d3f582021-12-02T16:51:09ZValidity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study10.1038/s41598-021-89958-y2045-2322https://doaj.org/article/fec9571990cb4c379f2e2427f54d3f582021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89958-yhttps://doaj.org/toc/2045-2322Abstract The EOS is a medical imaging system that incorporates simultaneous orthogonal images, producing three-dimensional (3D) reconstructions of the whole skeletal system in various functional positions. Despite growing interest in the pelvic 3D position, the validity of the EOS has not yet been well studied. We investigated the trueness and precision of EOS imaging for pelvic parameters and orientation and assessed whether the measurement using the EOS was affected by the pelvic orientation itself. The orientation of the anterior pelvic plane and pelvic parameters of a custom-made pelvic phantom were measured by three raters using the EOS, and the measurements obtained were compared with the true values. The standard deviations of the measurement errors were 3.23°, 0.26°, 0.23°, 2.98°, 0.88°, and 3.22° for flexion, obliquity, rotation, pelvic incidence, spinopelvic tilt, and sacral slope, respectively. The root-mean square averages of the standard deviation of each measurement were 4.05°, 0.41°, 0.28°, 4.80°, 0.99°, and 5.13°, respectively. The measurement errors for sacral slope correlated significantly with geometric means of flexion, obliquity, and rotation (r = 0.364, p = 2.67 × 10–11). The EOS rendered accurate and reliable measurements regarding pelvic 3D position, even with positional variation, but positional variation could affect measurements of sacral slope.Jung-Taek KimDong hoon LeeHan-Dong LeeHan-Bit ShinBumhee ParkSunghoon ParkHyung Keun SongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jung-Taek Kim Dong hoon Lee Han-Dong Lee Han-Bit Shin Bumhee Park Sunghoon Park Hyung Keun Song Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
description	Abstract The EOS is a medical imaging system that incorporates simultaneous orthogonal images, producing three-dimensional (3D) reconstructions of the whole skeletal system in various functional positions. Despite growing interest in the pelvic 3D position, the validity of the EOS has not yet been well studied. We investigated the trueness and precision of EOS imaging for pelvic parameters and orientation and assessed whether the measurement using the EOS was affected by the pelvic orientation itself. The orientation of the anterior pelvic plane and pelvic parameters of a custom-made pelvic phantom were measured by three raters using the EOS, and the measurements obtained were compared with the true values. The standard deviations of the measurement errors were 3.23°, 0.26°, 0.23°, 2.98°, 0.88°, and 3.22° for flexion, obliquity, rotation, pelvic incidence, spinopelvic tilt, and sacral slope, respectively. The root-mean square averages of the standard deviation of each measurement were 4.05°, 0.41°, 0.28°, 4.80°, 0.99°, and 5.13°, respectively. The measurement errors for sacral slope correlated significantly with geometric means of flexion, obliquity, and rotation (r = 0.364, p = 2.67 × 10–11). The EOS rendered accurate and reliable measurements regarding pelvic 3D position, even with positional variation, but positional variation could affect measurements of sacral slope.
format	article
author	Jung-Taek Kim Dong hoon Lee Han-Dong Lee Han-Bit Shin Bumhee Park Sunghoon Park Hyung Keun Song
author_facet	Jung-Taek Kim Dong hoon Lee Han-Dong Lee Han-Bit Shin Bumhee Park Sunghoon Park Hyung Keun Song
author_sort	Jung-Taek Kim
title	Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
title_short	Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
title_full	Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
title_fullStr	Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
title_full_unstemmed	Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
title_sort	validity of the eos-determined pelvic parameters and orientation with pelvic positional variation: a phantom study
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fec9571990cb4c379f2e2427f54d3f58
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Validity of the EOS-determined pelvic parameters and orientation with pelvic positional variation: a phantom study

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