ArticlePrecision radiation oncology2024
Investigating the method of selection of background pixel values for the calibration of EBT-XD film dosimetry.
Article in Precision radiation oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Editorial: 2Precision radiation oncology · 2025Article
- Visualization and evaluation of the quality variations of EBT4 Gafchromic film using multidimensional scaling and Lie derivative image analysis.Physical and engineering sciences in medicine · 2025Article
- Investigating the method of selection of background pixel values for the calibration of EBT-XD film dosimetry.Precision radiation oncology · 2024Article
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Authors and funding
3 authors.
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Abstract
Purpose: This study investigates three different calibration methods for the selection of background pixel intensity. Methods: Film-by-Film (FBF) Method: Each film serves as its own control. Batch-by-Film (BBF) Method: A single film is used as a control for all calibration films. Generic (GEN) Method: A generic value (65535) is used as the background pixel value for all calibration films.Three calibration curves were established for the red, green, blue, and RGB channels, and the Radbard NIH (image) curve-fitting model was used to predict the dose. Sensitivity at different dose levels was quantified by calculating the first derivative of each color channel. Results: The GEN method exhibited a difference of up to 6% between the predicted and delivered doses below 2 Gy. The changes in optical density when using the GEN method differed significantly ( Conclusions: The FBF method is more accurate than the BBF and GEN methods because it accounts for inter-film variations. The Radbard NIH (image) curve-fitting function proved suitable for predicting the dose for all the three calibration methods.
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