Gallstone detection at CT in vitro

Effect of peak voltage setting

Wesley C. Chan, Bonnie N. Joe, Fergus Coakley, Edwin L. Prien, Robert G. Gould, Sven Prevrhal, William C. Barber, Kimberley S. Kirkwood, Aliya Qayyum, Benjamin M. Yeh

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

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 gallstone detection was significantly higher at 140 kVp (86% [74 of 86] for reader 1 and 81% [70 of 86] for reader 2) than at lower voltage settings (up to 67% [58 of 86] for reader 1 and 63% [54 of 86] for reader 2, P <.05 for each reader), regardless of gallstone size (

Original languageEnglish (US)
Pages (from-to)546-553
Number of pages8
JournalRadiology
Volume241
Issue number2
DOIs
StatePublished - Nov 2006
Externally publishedYes

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Gallstones
Tomography
Health Insurance Portability and Accountability Act
Informed Consent
In Vitro Techniques
Research

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Chan, W. C., Joe, B. N., Coakley, F., Prien, E. L., Gould, R. G., Prevrhal, S., ... Yeh, B. M. (2006). Gallstone detection at CT in vitro: Effect of peak voltage setting. Radiology, 241(2), 546-553. https://doi.org/10.1148/radiol.2412050947

Gallstone detection at CT in vitro : Effect of peak voltage setting. / Chan, Wesley C.; Joe, Bonnie N.; Coakley, Fergus; Prien, Edwin L.; Gould, Robert G.; Prevrhal, Sven; Barber, William C.; Kirkwood, Kimberley S.; Qayyum, Aliya; Yeh, Benjamin M.

In: Radiology, Vol. 241, No. 2, 11.2006, p. 546-553.

Research output: Contribution to journalArticle

Chan, WC, Joe, BN, Coakley, F, Prien, EL, Gould, RG, Prevrhal, S, Barber, WC, Kirkwood, KS, Qayyum, A & Yeh, BM 2006, 'Gallstone detection at CT in vitro: Effect of peak voltage setting', Radiology, vol. 241, no. 2, pp. 546-553. https://doi.org/10.1148/radiol.2412050947
Chan, Wesley C. ; Joe, Bonnie N. ; Coakley, Fergus ; Prien, Edwin L. ; Gould, Robert G. ; Prevrhal, Sven ; Barber, William C. ; Kirkwood, Kimberley S. ; Qayyum, Aliya ; Yeh, Benjamin M. / Gallstone detection at CT in vitro : Effect of peak voltage setting. In: Radiology. 2006 ; Vol. 241, No. 2. pp. 546-553.
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