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Published on: December 9, 2015
Skeletal scintigraphy in the horse: current indications and validity as a diagnostic test
D C Archer1, J C Boswell, L C Voute
1Department of Clinical Studies, Philip Leverhulme Large Animal Hospital, University of Liverpool, Leahurst, Neston, The Wirral CH64 7TE, UK. darcher@liverpool.ac.uk
Abstract:
Gamma scintigraphy is a well established imaging modality, which in equine practice is predominantly used in the investigation of lameness and suspected musculoskeletal problems. Whilst there is a growing literature on the indications for scintigraphy in the horse, there has been little emphasis so far on identifying the validity of scintigraphy as a diagnostic test. In particular, to what extent can the results of a scintigraphic examination be trusted? In this opinionated review the current indications for skeletal scintigraphy in the horse are considered and its validity as a diagnostic test reviewed. It is concluded that in the majority of published studies, inherent biases in study design make it difficult to assess accurately the validity of skeletal scintigraphy in the horse. Further well designed, prospective studies are required to assess the validity of skeletal scintigraphy as a diagnostic tool, particularly in horses with subtle alterations in radiopharmaceutical uptake.
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