Gallstone detection at CT in vitro: effect of peak voltage setting.

  title={Gallstone detection at CT in vitro: effect of peak voltage setting.},
  author={Wesley C. W. Chan and Bonnie N. Joe and Fergus V. Coakley and Edwin L. Prien and Robert G. Gould and Sven Prevrhal and William C. Barber and Kimberley S Kirkwood and Aliya A. Qayyum and Benjamin M Yeh},
  volume={241 2},
This study was a retrospective single-institutional study approved by the Committee on Human Research and was HIPAA compliant. A waiver for informed consent was granted. The purpose of the study was to evaluate the effect of four peak voltage settings on the in vitro conspicuity of gallstones in an anthropomorphic phantom at computed tomography (CT). An anthropomorphic phantom was scanned with (n = 86) or without (n = 85) gallstones at CT by using 80, 100, 120, and 140 kVp. The sensitivity for… CONTINUE READING


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