THE EFFECT OF A TECHNICAL QUALITY ASSESSMENT OF HIP-EXTENDED RADIOGRAPHS ON INTEROBSERVER AGREEMENT IN THE DIAGNOSIS OF CANINE HIP DYSPLASIA

Authors

  • GEERT E.C. VERHOEVEN,

    1. Department of Medical Imaging, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
    2. Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
    3. Algemene Dierenkliniek Randstad, Frans Beirenslaan 155, 2150 Borsbeek, Belgium
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  • RUTH R. FORTRIE,

    1. Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
    2. Algemene Dierenkliniek Randstad, Frans Beirenslaan 155, 2150 Borsbeek, Belgium
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  • LUC DUCHATEAU,

    1. Department of Physiology and Biometrics, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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  • JIMMY H. SAUNDERS,

    1. Department of Medical Imaging, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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  • BERNADETTE VAN RYSSEN,

    1. Department of Medical Imaging, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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  • HENRI VAN BREE,

    1. Department of Medical Imaging, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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  • FRANK COOPMAN

    1. Department of Medical Imaging, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
    2. Department of Biosciences and Landscape Architecture, University College Ghent, Voskenslaan 290, 9000 Gent, Belgium
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Address correspondence and reprint requests to Geert E.C. Verhoeven, at the above address. E-mail: geertverhoeven@hotmail.com

Abstract

Experienced and inexperienced observers evaluated the assessability of 50 radiographs (25 dogs) and determined the hip status (dysplasia/nondysplasia and final scoring according Fédération Cynologique Internationale [FCI]-criteria) individually. A radiographic technical quality assessment was performed in a separate reading session. Interobserver agreement in determining dysplasia/nondysplasia and FCI-scoring did not significantly increase with the increasing quality of a radiograph, irrespective whether these observers are experienced or not. There was a significant agreement between the technical quality assessment and assessability (P<0.0005). Despite the effort to objectify radiographic quality and to present high-quality radiographs to observers, interobserver agreement on dysplasia/nondysplasia and final scoring, remains low, even in the experienced group. Although increased radiographic quality narrows the range of scoring, the range remains unacceptably high.

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