Increasing display luminance as a means to enhance interpretation accuracy and efficiency when reducing full-field digital mammography dose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

FFDM reduces radiation dose, but risks are still a concern. Reducing dose increases noise impacting image quality, but can be dealt with at the display level by increasing luminance. Two CDMAM images were obtained at 26 kV and the same distance between detectors, at 45 and 50 mAs resulting in entrance surface doses of 7.093 and 7.880 mGy. They were processed to make average gray level of the background independent of dose level, while maintaining SNR. Eight radiologists viewed the images at 420 cd/m2, 1000 cd/m2 and SpotViewTMa tool that resulted in an average display luminance of 3138.8 cd/m2. Percent correct (PC) for all 3 luminances was higher in high vs low dose. In low dose, PC was highest with SpotViewTM, and SpotViewTM and 1000 cd/m2 were significantly higher than 420 cd/m2. In high dose, SpotViewTM PC was significantly higher than both lower luminances. Average time per image was lower in high dose, and at both doses time decreased as luminance increased, with SpotViewTM have significantly shorter times. Increasing luminance from 420 cd/m2 to 1000 cd/m2 significantly increases reading accuracy by approximately 3.0%; SpotViewTM by approximately 6.2%. Increasing display luminance with SpotViewTM significantly decreases reading time by 16.0%.

Original languageEnglish (US)
Title of host publication14th International Workshop on Breast Imaging (IWBI 2018)
PublisherSPIE
Volume10718
ISBN (Electronic)9781510620070
DOIs
Publication statusPublished - Jan 1 2018
Externally publishedYes
Event14th International Workshop on Breast Imaging (IWBI 2018) - Atlanta, United States
Duration: Jul 8 2018Jul 11 2018

Other

Other14th International Workshop on Breast Imaging (IWBI 2018)
CountryUnited States
CityAtlanta
Period7/8/187/11/18

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Keywords

  • accuracy
  • display luminance
  • efficiency
  • FFDM
  • observer performance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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