Research Masterclass in Radiotherapy Physics 2017

Imaging: CT/Lung

Post-RT CT as predictor of physician score > SWOG 1

Mean density

Threshold Sensitivity Specificity

6 HU 75% 60%

11 HU 63% 80%

Structure

Threshold Sensitivity Specificity

1.1

88% 80%

1.3

75% 100%

G. Ghobadi et al. Radiother Oncol. 2015