Image Quality Evaluation of Chest for Computed Radiography

Construction of pediatric homogeneous phantoms for optimization of chest and skull radiographs

“…This analysis permitted the authors to choose images with the highest VGA score (score of +2 on a scale from −2 to +2) and make the correspondence with the techniques of each image with the eDQE and CNR values. We propose that optimal pediatric test techniques are ones that reach the same physical parameter values for eDQE and CNR as the optimal techniques for standard adults (score +2) that were determined in previous work [25]. To guarantee the correspondence of the physical quantities from adult to pediatric techniques, we established confidence values for the M-eDQE and CNR.…”

“…In a previous study [25], gold standard techniques for standard adult patients were obtained by associating the Visual Gradual Analysis (VGA) with physical quantities, such as eDQE and CNR. The VGA was performed using the Alderson Rando Phantom, eDQE with the patient equivalent phantom, and CNR with the step-wedge phantom.…”