An evaluation of the impact of digital imaging on radiographic practice and patient doses

[摘要] Direct digital imaging technology was implemented in all areas in general and mobile radiology at Barts and the Royal London Hospitals in 2012. Evidence from recent radiation incident investigations indicates optimum exposure factors are not consistently selected, with the greater dynamic range of the digital detectors allowing sub-optimal practice. To investigate further patient dose data were extracted from the Radiology Information System for adult chest X-ray examinations in 2014, covering over 50,000 studies in the Trust. Chest X-ray examinations were selected as they are low dose but frequent examinations. The patient dose data were evaluated taking into account X-ray system type and detector performance measurements, and individual cases studies were used to highlight where practice can be improved.

[发布机构] Clinical Physics, Barts Health NHS Trust, London; E1 1BB, United Kingdom^1

[效力级别] 医药卫生 [学科分类] 卫生学

[关键词] Detector performance;Digital detector;Digital imaging;Digital-imaging technology;Dynamic range;Exposure factors;Incident investigation;Radiology information system