Observer evaluation of scatter subtraction for digital portable chest radiographs.
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.
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Related Subject Headings
- Subtraction Technique
- Scattering, Radiation
- Radiography, Thoracic
- Radiographic Image Enhancement
- Observer Variation
- Nuclear Medicine & Medical Imaging
- Humans
- Evaluation Studies as Topic
- 3202 Clinical sciences
- 1103 Clinical Sciences
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Subtraction Technique
- Scattering, Radiation
- Radiography, Thoracic
- Radiographic Image Enhancement
- Observer Variation
- Nuclear Medicine & Medical Imaging
- Humans
- Evaluation Studies as Topic
- 3202 Clinical sciences
- 1103 Clinical Sciences