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Invest Radiol. 1993 Aug;28(8):667-70.

Observer evaluation of scatter subtraction for digital portable chest radiographs.

Author information

1
Department of Radiology, Duke University Medical Center, Durham, North Carolina.

Abstract

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.

PMID:
8375997
[Indexed for MEDLINE]

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