Table 1.

Normal tissue complication probabilities for grade 2+ radiation pneumonitis are presented for NTCP models that account for both dose to functional sub-volumes and dose to the total lung.

Grade 2+ Toxicity
Dose Metrics for NTCP Model	Mean Toxicity Probability – Clinical Plan	Mean Toxicity Probability – Functional Plan	Absolute Reduction
fV5Gy + V5Gy	44.9%	35.8%	9.1%
fV10Gy + V10Gy	42.2%	31.8%	10.4%
fV20Gy + V20Gy	39.9%	33.4%	6.5%
fV30Gy + V30Gy	39.7%	33.2%	6.4%
fMLD + MLD	34.8%	34.1%	0.6%