Use of a digitally reconstructed radiograph-based computer simulation for the optimisation of chest radiographic techniques for computed radiography imaging systems

摘要: Objectives The purpose of this study was to derive an optimum radiographic technique for computed radiography (CR) chest imaging using a digitally reconstructed radiograph computer simulator. simulator is capable producing CR radiographs adults with various tube potentials, receptor doses and scatter rejection. Methods Four experienced image evaluators graded images average obese adult patients at different potentials (average-sized, n=50; obese, n=20), (n=10) rejection techniques n=20; n=20). quality the evaluated visually analysis. influence rib contrast also assessed. Results For average-sized patients, improved when potential reduced compared reference (102 kVp). No indicated. it has been shown that antiscatter grid indicated, should be used in conjunction as low possible (while al...