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What is CBCT Image Quality QA Performance Analysis about?

This study assessed the ability of monthly CBCT image quality QA using the CATPHAN phantom to predict clinically recognizable CBCT image quality issues over 34 months on 8 Varian linacs. The sensitivity of the monthly QA was low at 17%, and the specificity varied by metric. Uniformity had the best predictive ability but still had a high false positive rate and low sensitivity. Overall, the study found that monthly CATPHAN QA is not a good predictor of CBCT image quality issues that impact clinical use. The

Author

Partha Chaudhury

Language

EN