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Some issues concerning the statistical evaluation of a screening test: the arfi ultrasound case

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  • Massimo Attanasio
  • Marco Enea
  • Leonardo Rizzo
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    Abstract

    In this paper we analyze some issues concerning the statistical evaluation of a screening test for classification. The case study is ARFI, an ultrasound device recently introduced, and used for the evaluation of liver fibrosis. First, we present a simple statistical evaluation based on a novel index that compare two competitors with respect to a gold standard, and then we propose a procedure that determines a table with the “acceptable” number of measurements to get an “accurate” diagnosis using the ARFI device.

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    Bibliographic Info

    Article provided by Department of Statistics, University of Bologna in its journal STATISTICA.

    Volume (Year): 70 (2010)
    Issue (Month): 3 ()
    Pages: 311-322

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    Handle: RePEc:bot:rivsta:v:70:y:2010:i:3:p:311-322

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