Impact of Fractionation and Dose in a Multivariate Model for Radiation-Induced Chest Wall Pain

There were several predictive factors for the development of CWP2. The LQ-adjusted doses using the best-fit α/β = 2.1 Gy is a better predictor of CWP2 than the physical dose. To aid dosimetrists, we have calculated the physical dose equivalent corresponding to VNTD99Gy = 31.5 cm3 for the 3- to 5-fraction groups.