title: Investigation of imaging magnification in radiostereometric analysis.
abstract: Radiostereometric analysis is a highly accurate imaging technique. A recent advance in radiostereometric analysis is the use of flat panel digital radiography, which provides the opportunity for quick analysis using radiostereometric analysis. However, such a setup is expensive. Using large cassettes for small joints could minimize the cost. In this article, we investigated the influence of cassette size for small joint examinations with a biplanar radiostereometric analysis setup. Our results indicated that there is no significant difference in the precision when using large cassettes over small cassettes, whether or not imaging magnification is applied.
authors.affiliation: 1 Department of Medical Biophysics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada.
authors.forename: Jordan S
authors.initials: JS
authors.lastname: Broberg
authors.affiliation: 2 Imaging Research Laboratories, Robarts Research Institute, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada.
authors.forename: Xunhua
authors.initials: X
authors.lastname: Yuan
authors.affiliation: 1 Department of Medical Biophysics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada.|2 Imaging Research Laboratories, Robarts Research Institute, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada.|3 Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada.|4 Surgical Innovation Program, Lawson Health Research Institute, London, ON, Canada.
authors.forename: Matthew G
authors.initials: MG
authors.lastname: Teeter
mesh_terms: D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging; D007720:Knee Prosthesis; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement / Q000379:methods; D059869:Radiostereometric Analysis / Q000295:instrumentation / Q000379:methods*
keywords: Radiostereometric analysis; detector size; digital radiography; imaging magnification; precision validation