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


  • Massimo Attanasio
  • Marco Enea
  • Leonardo Rizzo


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.

Suggested Citation

  • Massimo Attanasio & Marco Enea & Leonardo Rizzo, 2010. "Some issues concerning the statistical evaluation of a screening test: the arfi ultrasound case," Statistica, Department of Statistics, University of Bologna, vol. 70(3), pages 311-322.
  • Handle: RePEc:bot:rivsta:v:70:y:2010:i:3:p:311-322

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