Reduction of patient exposure in pediatric radiology: an observer performance study

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

Abstract

To determine if presently used exposure levels in pediatric imaging can be reduced without loss of information or decrease in diagnostic accuracy, a method for multiple (stacked) image detectors and filters using a computed radiography system was used to obtain identical images of different exposure levels of neonates with either no active lung disease or hyaline membrane disease. Physical characteristics of the images were measured. A contrast-detail study and an ROC study were conducted to measure observer performance. Physical measurements and the contrast detail study revealed that all images were essentially x-ray photon noise limited. The ROC study indicated that diagnostic accuracy did not decrease significantly up to about 75% exposure reduction levels, although image quality rating data decreased with each exposure reduction. Decreasing exposure levels to about 75% of current levels may be acceptable in some clinical situations where dose is a concern, such as in pediatric imaging.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsHarold L. Kundel
Pages50-61
Number of pages12
StatePublished - Dec 1 1995
EventMedical Imaging 1995: Image Perception - San Diego, CA, USA
Duration: Mar 1 1995Mar 1 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2436
ISSN (Print)0277-786X

Other

OtherMedical Imaging 1995: Image Perception
CitySan Diego, CA, USA
Period3/1/953/1/95

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Krupinski, E. A., & Roehrig, H. (1995). Reduction of patient exposure in pediatric radiology: an observer performance study. In H. L. Kundel (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 50-61). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2436).