En sammenligning af den diagnostiske nøjagtighed ved beskrivelse af CT-kolografier, udført af specielt uddannede radiografer og radiologer

Carsten Ammitzbøl Lauridsen, Philippe Lefere, Oke Gerke, Jens Karstoft

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    Abstract

    Objective
    To compare computed tomographic colonography (CTC) performance of 4 trained radiographers with the CTC performance of 2 experienced radiologists.

    Methods
    Four radiographers and two radiologists interpreted 87 cases with 40 polyps ≥6 mm. Sensitivity, specificity-, and positive predictive value (PPV) were assessed on a per-patient basis. On a per-polyp basis, sensitivity was calculated according to the respective size categories (polyps ≥6 mm as well as polyps ≥10 mm).
    Results
    Overall per-patient sensitivity for polyps ≥6 mm was 76.2% (95% CI 61.4- 91.0) and 76.2% (95% CI 61.7- 90.6), for the radiographers and radiologists, respectively. Overall per-patient specificity for polyps ≥6 mm were 81.4% (95% CI 73.7-89.2) and 81.1% (95% CI 73.8 -88.3) for the radiographers and the radiologists, respectively. For the radiographers, overall per-polyp sensitivity was 60.3% (95% CI 50.3 - 70.3) and 60.7% (95% CI 42.2-79.2) for polyps ≥6 mm and ≥10 mm, respectively. For the radiologists, overall per polyp sensitivity was 59.2% (95% CI 46.4 - 72.0) and 69.0% (95% CI 48.1 - 89.6) for polyps ≥6 mm and ≥10 mm, respectively.

    Conclusion
    Radiographers with training in CT colonographic evaluation achieved sensitivity and specificity in polyp detection comparable with that of experienced radiologists.
    Bidragets oversatte titelEn sammenligning af den diagnostiske nøjagtighed ved beskrivelse af CT-kolografier, udført af specielt uddannede radiografer og radiologer
    OriginalsprogEngelsk
    TidsskriftInsights into Imaging
    Vol/bind4
    Sider (fra-til)491-497
    Antal sider7
    ISSN1869-4101
    DOI
    StatusUdgivet - aug. 2013

    Emneord

    • radiografi
    • kræft
    • kræftpatienter

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