Radiation Protection Dosimetry · 2008 · 13 citations · 5 references
MedicinePhysicsRadiologyDiagnostic RadiologyInterventional RadiologyMedical PhysicsDetector EfficiencyHealth PhysicsInterventional Radiology PhysicsNuclear Medicine ImagingRadiation DetectorsRadiation Imaging DetectorsDetector DesignFlat-panel Detector PerformanceFlat-panel Detector SystemsInterventional Procedure OptimizationInterventional Radiology Dose OptimizationNuclear Medicine DetectorsOptimization Of Scan ParametersRadiation Detection Instrumentation
An analysis of the relationship between image quality and incident air kerma has been carried out for a dynamic flat detector X-ray system used for interventional radiology. A phantom of polymethyl methacrylate (PMMA) to simulate patients and two different image test objects, Leeds TOR 18FG and NEMA XR 21, were used to evaluate the quality of the obtained images. Measurements were made simulating clinical configuration with different PMMA thicknesses (16, 20, 24 and 28 cm), available fields of view of 22, 31, 42 and 48 cm (diagonal dimension), in the three default fluoroscopy modes and in one of the most used digital subtraction angiography image acquisition modes. The obtained results are being used to help in the optimisation of clinical procedures.
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