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Enhancing image quality
- A grid is one of the key components of a digital radiography (DR) system because it removes scattered radiation, which arises when X-rays penetrate an object and improves diagnostic accuracy by enhancing image quality.
pubmed.ncbi.nlm.nih.gov/30989596/Quantitative analysis of effects of the grid specifications ...
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Do X-ray grids improve image quality?
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Antiscatter grids improve the X-ray image contrast at a cost of patient radiation doses. The choice of appropriate grid or its removal requires a good knowledge of grid characteristics, especially for pediatric digital imaging.
- Quantitative analysis of effects of the grid specifications ...
A grid is one of the key components of a digital radiography...
- On image quality metrics and the usefulness of grids in ...
The theoretical analysis shows that for a thinner PMMA, <...
- Quantitative analysis of effects of the grid specifications ...
Apr 15, 2019 · Because unsuitable grids may decrease image quality and lead to misdiagnosis, using optimised grids for DR systems is critical. In this study, we aimed to analyse the quality of X-ray images acquired using grids with different specifications and proposed standardised criteria for grid use on the basis of our results.
- Sanghyun Lee, Woohyun Chung
- 2019
A grid is one of the key components of a digital radiography (DR) system because it removes scattered radiation, which arises when X-rays penetrate an object and improves diagnostic accuracy by enhancing image quality.
- Sanghyun Lee, Woohyun Chung
- 2019
In summary, the thickness of grid strips in X-ray grids plays a critical role in image quality and dose efficiency. Thicker grid strips generally contribute to better scatter removal and improved image contrast, leading to higher dose efficiency.
When a grid is used to reduce x-ray scatter it increases the contrast by a contrast improvement factor (k), but additional radiation dose is needed to compensate for the photons blocked by the grid (Bucky Factor).
Feb 17, 2015 · The theoretical analysis shows that for a thinner PMMA, < 3.3 to 4.4 cm, removing the grid could reduce the dose without degrading image quality, whereas for a thicker PMMA, > ∼ 4.4 cm, the grid provides benefit and should be kept.
Jun 19, 2023 · In our results, assuming that the grid artifact can be neglected, a low strip frequency grid should be employed to improve image contrast, whereas a high strip frequency grid should be employed to suppress radiographic noise degradation.
