Digital selenium radiography: anti-scatter grid for chest radiography in a clinical study
| Autor: | Thomas M. Bernhardt, U Rapp-Bernhardt, U W Krause, T Hausmann, G Reichel, W. Doehring |
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| Rok vydání: | 2000 |
| Předmět: |
Adult
Male medicine.medical_specialty genetic structures Radiography Radiation Dosage Sensitivity and Specificity Anti-scatter grid Clinical study Selenium medicine Humans Scattering Radiation Radiology Nuclear Medicine and imaging Statistical analysis Aged Digital radiography Aged 80 and over business.industry Significant difference General Medicine Middle Aged Visualization Radiographic Image Enhancement Female Radiography Thoracic Radiology business |
| Zdroj: | The British Journal of Radiology. 73:963-968 |
| ISSN: | 1748-880X 0007-1285 |
| DOI: | 10.1259/bjr.73.873.11064649 |
| Popis: | The purpose of this study was to evaluate the diagnostic performance of an additional stationary anti-scatter grid in digital selenium radiography (DSR) compared with images acquired with only an air gap. Chest radiographs were obtained with DSR in 100 patients with and without an anti-scatter grid. Four observers scored 12 anatomical landmarks, catheters and wire cerclages for their visualization in both subsets of images. Statistical analysis was performed using a paired t-test. Anatomical landmarks, catheters and wire cerclages were statistically better visualized in regions of high attenuation when the images were performed with an anti-scatter grid. No statistically significant difference was noted for peripheral regions, nor for sex and weight of the patient between the two modalities. Therefore, an anti-scatter grid is not recommended for chest radiography as it increases the radiation exposure of patients without having a significant impact on visualization for all regions of the chest. |
| Databáze: | OpenAIRE |
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