Flouroscopy Quality Control - Abdalrhman Ibrahim Nayl Edam

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Résumé :
The aim of this work was to perform quality control (QC) for six digital fluoroscopy units used for cardiovascular and interventional radiology procedures. Measurements were based on the QC protocol developed in the framework of European Commission (EU) DIMOND III project. Measurements made included: beam quality (half-value layer, HVL), peak tube voltage (kVp) accuracy, automatic exposure control(AEC) and patient dose in terms of entrance surface air kerma rate plus image intensifier input air kerma rate. Dose measurements were made using Calibrated dose rate meter. Field limitation and source to skin distant measurements in addition to evaluation radiation protection tools for occupation exposure were performed. Image quality was evaluated in terms of spatial resolution and Contrast detail detectability. Patient dose measurements was performed using polymethylmethacrylate (PMMA) patient equivalent phantom whereas image quality was assessed using Huettner Type 53 spatial frequency grating and TO10 contrast detail phantom....