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Master Thesis

Étude comparative de deux modalités de reconstruction 3D du rachis à partir de deux radiographies face profil en position debout : BIOMODTM3S et sterEOS®

Abstract : Introduction: This study aims to evaluate the repeatability and reproducibility of two different methods of 3D reconstruction of the spine sterEOS® and BIOMODTM3S. Materials and Methods: Three reviewers performed the reconstructions in three dimensions (3D) spine of 62 patients who passed an examination at the EOS Pellegrin Hospital in Bordeaux. Each spine was reconstructed twice by the same evaluator to evaluate repeatability. The evaluators made these reconstructions with each modality: sterEOS® and BIOMODTM3S to obtain reproducibility. Variability within and between observer is evaluated by studying the coefficients of intra-class correlation (ICC). Data collection was done by EXCEL spreadsheet. The differences between the two methods were evaluated by the standard error of measurement (SEM) absolute and relative to the determination of vertebral heights and axial rotation of the vertebrae tops. Results: We demonstrated that the reproducibility of the axial rotation of the apical vertebra with BIOMODTM3S was low. The standard measurement absolute error is 7.4°. As for sterEOS®, we noticed a decent level of repeatability and reproducibility for determining low levels of vertebrae tops, upper and lower vertebrae junctional. The study of other spinal parameters shows that both methods have good repeatability and reproducibility (ICC> 0.75). Conclusion: The level of repeatability and reproducibility is generally good except for the axial rotation of the apical vertebra by BIOMODTM3S and determining the level of apical vertebra, junctional top and bottom by sterEOS® which are imprecise. If these results are compared to the traditional techniques of measurement on the radiograph, these two methodss keep a significant advantage.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01088198
Contributor : Bu Carreire Université de Bordeaux <>
Submitted on : Thursday, November 27, 2014 - 3:28:00 PM
Last modification on : Wednesday, August 23, 2017 - 4:30:28 PM
Long-term archiving on: : Monday, March 2, 2015 - 9:25:03 AM

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Anna Jirot. Étude comparative de deux modalités de reconstruction 3D du rachis à partir de deux radiographies face profil en position debout : BIOMODTM3S et sterEOS®. Médecine humaine et pathologie. 2014. ⟨dumas-01088198⟩

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