title: Memory artifact related to selenium-based digital radiography systems.
abstract: Digital images acquired on radiography systems with amorphous selenium detectors are susceptible to "memory artifacts" from prior x-ray exposures. In routine clinical use and in a laboratory experiment, artifacts appeared in chest radiographs until the selenium recovered from initial exposure. Memory artifacts were eliminated when 3 minutes or more elapsed between acquisition of a lateral chest radiograph and acquisition of the next radiograph.
authors.affiliation: Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA.
authors.forename: H G
authors.initials: HG
authors.lastname: Chotas
authors.forename: C E
authors.initials: CE
authors.lastname: Floyd
authors.forename: C E
authors.initials: CE
authors.lastname: Ravin
mesh_terms: D000535:Aluminum; D016477:Artifacts; D004563:Electrochemistry; D004595:Electroplating; D004867:Equipment Design; D004868:Equipment Failure; D006801:Humans; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D013902:Radiography, Thoracic / Q000295:instrumentation; D012643:Selenium / Q000737:chemistry* / Q000528:radiation effects; D013997:Time Factors; D014965:X-Rays
chemical_list: D000535:Aluminum; D012643:Selenium