Influence of patient axial malpositioning on the trueness and precision of pelvic parameters obtained from 3D reconstructions based on biplanar radiographs
dc.contributor.author | GHOSTINE, Bachir | |
hal.structure.identifier | Institut de Biomecanique Humaine Georges Charpak | |
hal.structure.identifier | Laboratoire de biomécanique [LBM] | |
dc.contributor.author | SAURET, Christophe | |
hal.structure.identifier | Laboratoire de biomécanique [LBM] | |
dc.contributor.author | ASSI, Ayman | |
dc.contributor.author | BAKOUNY, Ziad | |
dc.contributor.author | KHALIL, Nour | |
hal.structure.identifier | Laboratoire de biomécanique [LBM] | |
hal.structure.identifier | Institut de Mécanique et d'Ingénierie de Bordeaux [I2M] | |
hal.structure.identifier | Institut de Biomecanique Humaine Georges Charpak | |
dc.contributor.author | SKALLI, Wafa | |
hal.structure.identifier | Université Saint-Joseph de Beyrouth [USJ] | |
dc.contributor.author | GHANEM, Ismat | |
dc.date.accessioned | 2021-05-14T09:41:41Z | |
dc.date.available | 2021-05-14T09:41:41Z | |
dc.date.issued | 2016-06-10 | |
dc.identifier.issn | 0938-7994 | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/76660 | |
dc.description.abstract | Objectives: Radiographs are often performed to assess pelvic and hip parameters, but results depend upon correct pelvis positioning. Three-dimensional (3D) reconstruction from biplanar-radiographs should provide parameters that are less sensitive to pelvic orientation, but this remained to be evaluated.Methods: Computerized-tomographic scans of six patients were used both as a reference and for generating simulated frontal and lateral radiographs. These simulated radiographs were generated while introducing axial rotations of the pelvis ranging from 0° to 20°. Simulated biplanar-radiographs were utilized by four operators, three times each, to perform pelvic 3D-reconstructions. These reconstructions were used to assess the trueness, precision and global uncertainty of radiological pelvic and hip parameters for each position.Results: In the neutral position, global uncertainty ranged between ± 2° for pelvic tilt and ± 9° for acetabular posterior sector angle and was mainly related to precision errors (ranging from 1.5° to 7°). With increasing axial rotation, global uncertainty increased and ranged between ± 5° for pelvic tilt and ± 11° for pelvic incidence, sacral slope and acetabular anterior sector angle, mainly due to precision errors.Conclusion: Radiological parameters obtained from 3D-reconstructions, based on biplanar-radiographs, are less sensitive to axial rotation compared to plain radiographs. However, the axial rotation should nonetheless not exceed 10°. | |
dc.language.iso | en | |
dc.publisher | Springer Verlag | |
dc.title | Influence of patient axial malpositioning on the trueness and precision of pelvic parameters obtained from 3D reconstructions based on biplanar radiographs | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1007/s00330-016-4452-x | |
dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Biomécanique [physics.med-ph] | |
bordeaux.journal | European Radiology | |
bordeaux.page | 1295-1302 | |
bordeaux.volume | 27 | |
bordeaux.hal.laboratories | Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295 | * |
bordeaux.issue | 3 | |
bordeaux.institution | Université de Bordeaux | |
bordeaux.institution | Bordeaux INP | |
bordeaux.institution | CNRS | |
bordeaux.institution | INRAE | |
bordeaux.institution | Arts et Métiers | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-02197220 | |
hal.version | 1 | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02197220v1 | |
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