title: Temporal stability of digital radiographic detectors.
abstract: With the current preference for digital radiographic detectors in modern radiology facilities, there has been increasing demand for baseline technical data for equipment comparison and benchmarking. Key system parameters were monitored in 12 individual digital detectors over a 6 months period following installation, to establish baseline performance fluctuations for current generation indirect digital detectors. Performance criteria monitored included exposure index consistency, detector uniformity, system transfer function, artifact presentation, automatic exposure control reproducibility and dose area product consistency. Two indirect digital detector models were included, with the final set of measurements for each detector taken after routine detector calibrations were completed by technical staff. Suggested performance limits are presented based on observed temporal fluctuations, as well as national and international standards, where applicable.
authors.affiliation: Biomedical Technology Services, Gold Coast University Hospital, Queensland Health, Southport, QLD, Australia. timothy.ireland@health.qld.gov.au.
authors.forename: Timothy A
authors.initials: TA
authors.lastname: Ireland
authors.affiliation: Biomedical Technology Services, Lady Cilento Children's Hospital, South Brisbane, QLD, Australia.
authors.forename: Mike
authors.initials: M
authors.lastname: Irvine
mesh_terms: D002138:Calibration; D011856:Radiographic Image Enhancement / Q000295:instrumentation* / Q000592:standards*; D013997:Time Factors
keywords: Digital; Digital detectors; Quality control; Radiography