Observer performance comparison of digital radiograph systems for stereotactic breast needle biopsy

Elizabeth A. Krupinski, Hans Roehrig, Yu Tong

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Rationale and Objectives.: Two digital radiograph systems for stereotactic mammography, one using a lens to couple a Lanex Regular screen to a back-illuminated charge-coupled device (CCD) and one using a fiber-optic taper to couple a Min-R Regular-type screen to a front-illuminated CCD, were evaluated with respect to observer performance. Methods.: A contrast-detail phantom was imaged in a variety of equivalent exposure conditions on both systems. Six observers viewed images on a video monitor and recorded which objects were detected. Results.: Performance (percent correct detections) with the lens-coupled system using the Lanex Regular screen was significantly higher than with the fiber-optic-coupled system using the Min-R Regular-type screen. Conclusion.: Differences in absorption efficiencies of phosphors used, as well as differences in design of the two cameras, can explain differences in observer detection performance.

Original languageEnglish (US)
Pages (from-to)116-122
Number of pages7
JournalAcademic radiology
Volume2
Issue number2
DOIs
StatePublished - Feb 1995

Keywords

  • Charge-coupled device detectors
  • Lanex Regular
  • Min-R Regular
  • digital radiograph cameras
  • mammography
  • observer performance

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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