title: A rig for acquisition of standardized trabecular bone radiographs.
abstract: To assess osteoarthritic changes in knee joints a radiography rig for acquisition of standardized radiographs of trabecular bone has been developed. The rig contains a steel frame on castors, a turntable, a cassette holder frame, calibration Plexiglas sheets, body supports and points. It is used to lock the patient in a standardized position. A film cassette holder frame was also developed to reduce scattering of X-rays, and consequently the amount of noise in the radiographs. Calibration Plexiglas sheets were mounted on ball bearing slides to obtain radiographs without a calibration pattern (suitable for the analysis of trabecular bone texture) and radiographs containing a calibration pattern (suitable for the measurement of leg alignment).
authors.affiliation: Tribology Laboratory, Department of Mechanical and Materials Engineering, The University of Western Australia, 6009-Crawley, Western Australia.
authors.forename: P
authors.initials: P
authors.lastname: Podsiadlo
authors.forename: G W
authors.initials: GW
authors.lastname: Stachowiak
mesh_terms: D018450:Disease Progression; D004867:Equipment Design; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging* / Q000503:physiopathology; D007867:Leg Bones / Q000000981:diagnostic imaging* / Q000503:physiopathology; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation*