Measurement of scatter fractions in clinical bedside radiography.


Journal Article

The authors present measurements of scatter fraction (SF), the ratio of scattered to total imaged photons, from clinical bedside radiographs of 102 patients. These measurements were obtained by using a new posterior beam-stop technique that does not alter the diagnostic image but that simultaneously provides SF measurements at 224 locations in the image. The SF values in the lung were found to be consistent with previous measurements, while the SF values in the mediastinal and retrocardiac areas were larger than previously reported. SFs in diseased lung were significantly larger than SFs in normal lung. The range of SF values was large for all anatomic locations. For applications in which accurate scatter estimation is required, this wide range of values suggests that SFs should be measured in each individual image.

Full Text

Duke Authors

Cited Authors

  • Floyd, CE; Baker, JA; Lo, JY; Ravin, CE

Published Date

  • June 1992

Published In

Volume / Issue

  • 183 / 3

Start / End Page

  • 857 - 861

PubMed ID

  • 1584947

Pubmed Central ID

  • 1584947

International Standard Serial Number (ISSN)

  • 0033-8419

Digital Object Identifier (DOI)

  • 10.1148/radiology.183.3.1584947


  • eng

Conference Location

  • United States