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Master Thesis

Évaluation expérimentale sur os sec de l’utilisation de l’imagerie bi-plane pour le diagnostic et le suivi des dyskinésies scapulo-thoraciques

Abstract : Scapulothoracic dyskinesis are abnormalities in the statics of the scapula or its kinematics. The Kibler classification currently represents the gold standard but has moderate inter-observer reproducibility. The EOS system could be of interest by increasing reproducibility through the three-dimensional positioning of points of interest and reducing irradiation. We developed an anatomical model made of dry bones on which we reproduced the different types of dyskinesis using wedges of increasing size. Twenty-eight acquisitions were made by positioning the skeleton at 40° with respect to the transmitter from the front. Five angles were defined. The images were analysed on the EOS-Imaging software. Inter-observer reproducibility was almost perfect and ranged from 0.96 to 0.98 for the five angles of interest and intra-observer reproducibility measured at 0.99. All angles were linearly modified and statistically correlated with our Kibler dyskinesis models. We were able to identify patterns of angle modification according to the type of dyskinesia. The acquisition of two simultaneous perpendicular images using the EOS-Imaging system on a subject placed at an angle of 40° from the emitting beam makes it possible to measure five angles reproducibly, allowing scapulothoracic dyskinesis on dry bone to be studied. The measurement of these angles has the potential to independently diagnose each dyskinesis. It would provide a reproducible and low irradiation examination for the diagnosis and monitoring of scapulothoracic dyskinesis. Studies in healthy and pathological subjects are required to confirm these results.
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https://dumas.ccsd.cnrs.fr/dumas-02493483
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Submitted on : Thursday, February 27, 2020 - 6:20:58 PM
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Paul-Maxime Lacroix. Évaluation expérimentale sur os sec de l’utilisation de l’imagerie bi-plane pour le diagnostic et le suivi des dyskinésies scapulo-thoraciques. Sciences du Vivant [q-bio]. 2019. ⟨dumas-02493483⟩

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