title: Design of a PC controlled test device for the study of patient motion in X-ray radiology: first applications and results.
abstract: Simulation and study of patient motion should be undertaken for different imaging techniques since all new radiological techniques or equipment must pass through evaluation processes to verify their functional capability and assess their performance compared with other equipment. A device to study the effects of motion on X-ray image quality was designed and built. The main goal of the PC controlled device developed by our group is to allow the adaptation of different phantoms and test objects. Preliminary experiments for the evaluation of different thorax screen-film systems were carried out by simulating respiratory motion. It is concluded that moving objects should be included for the comparison of screen-film systems since predictions based only on findings in stationary test conditions could lead to false conclusions.
authors.affiliation: Department of Radiology (Medical Physics), School of Medicine, Complutense University of Madrid, Spain.
authors.forename: E
authors.initials: E
authors.lastname: Guibelalde
authors.forename: E
authors.initials: E
authors.lastname: Vañó
authors.forename: J M
authors.initials: JM
authors.lastname: Fernández
authors.forename: A
authors.initials: A
authors.lastname: Molinero
authors.forename: J
authors.initials: J
authors.lastname: Alberdi
authors.forename: A
authors.initials: A
authors.lastname: Merillas
mesh_terms: D016477:Artifacts; D004867:Equipment Design; D006801:Humans; D008838:Microcomputers; D009068:Movement; D019047:Phantoms, Imaging; D011859:Radiography / Q000295:instrumentation*; D013902:Radiography, Thoracic / Q000295:instrumentation; D012119:Respiration; D014963:X-Ray Intensifying Screens