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Master Thesis

Optimisation des doses en radiographie intra-orale : apport d'un système de régulation automatique du temps d'exposition dans un contexte clinique

Abstract : Objectives: To evaluate the contribution of the automatic exposure reduction technology proposed by the association X-mind Unity® - Sopix2 Inside® in a clinical context. Check the optimization of the feedback technology and compare the performance of the X-mind Unity® - Sopix2 Inside® pair to other pairs on the market, in an experimental context. Material and method: Retrospective study of data from a pool of clinical images using the X-mind Unity®-Sopix2 Inside® pair. Subjective analysis of image quality by 3 observers and objective, using 2 indexes (signal-to-noise ratio and noise contrast difference), a pool of experimental images made from the ORIONTM DIGIDENT2® phantom for the 4 X-ray tube couples - receivers selected. Results: The feedback control technology allows a significant dose reduction (Wilcoxon test p <0.05) of 10.1% compared to the manufacturer settings. The image obtained after activation of the feedback control technology has a higher dose (51.4 to 81.9%) to the optimized image provided by the X-mind Unity®-Sopix2 Inside® pair. The X-mind Unity® - Sopix2 Inside® pair is the best performing couple according to the 3 observers. Conclusion: The automatic exposure reduction technology allows a significant reduction of the dose, potentially increased by the optimization of the activation threshold of this technology. The X-mind Unity® - Sopix2 Inside® offers the best intrinsic performance.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01647212
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Submitted on : Friday, November 24, 2017 - 12:05:51 PM
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Geoffrey Bony. Optimisation des doses en radiographie intra-orale : apport d'un système de régulation automatique du temps d'exposition dans un contexte clinique. Chirurgie. 2017. ⟨dumas-01647212⟩

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