Observer evaluation of scatter subtraction for digital portable chest radiographs.

Journal Article

RATIONALE AND OBJECTIVES: The authors compared standard digital portable chest radiographs (DPCXR) to scatter-subtracted DPCXR: METHODS: Thirty DPCXR were obtained using a photostimulable phosphor digital imaging system and a posterior beam stop (PBS) technique that allowed measurement of the scatter component of the DPCXR: The scatter component was subtracted from the clinical image to form a scatter-subtracted image. Six observers recorded preference for the standard image or scatter-subtracted image for identifying five radiographic landmarks and for image quality. RESULTS: A statistically significant preference was demonstrated for the scatter-subtracted images and for viewing the tracheo-bronchial tree, right paratracheal stripe, vertebral column, and support apparatus position. For unprocessed images, there was a statistically significant preference for viewing the pulmonary vasculature. No statistically significant preference was demonstrated for overall image quality. CONCLUSIONS: These results suggest that PBS scatter subtraction holds promise for improving visualization of structures in high-scatter regions of chest radiographs.

Full Text

Duke Authors

Cited Authors

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

Published Date

  • August 1993

Published In

Volume / Issue

  • 28 / 8

Start / End Page

  • 667 - 670

PubMed ID

  • 8375997

International Standard Serial Number (ISSN)

  • 0020-9996

Language

  • eng

Conference Location

  • United States