Energy Dependence of Measured CT Numbers on Substituted Materials Used for CT Number Calibration of Radiotherapy Treatment Planning Systems.

PLoS One · 2016 · PMC4938553 · PMID 27391672

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a clear trendno p-value reported

The results of this study for rice powder, polyethylene, and acrylic showed a clear trend of increasing CT number with energy in the scanner and two treatment planning systems ( Fig 4 ).

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