Establishing the feasibility of the dosimetric compliance criteria of RTOG 1308: phase III randomized trial comparing overall survival after photon versus proton radiochemotherapy for inoperable stage II-IIIB NSCLC

Table 3 Comparison of OARs dosimetric criteria as estimated by the treatment planning system and the knowledge based engineering tool

Dosimetric Criteria	Treatment planning system	Knowledge based engineering tool
Spinal Cord Maximum Dose (Gy)	40 ± 2	44 ± 2
Esophagus Maximum Dose (Gy)	68 ± 3	75 ± 2
Heart V_{30 Gy} (%)	16 ± 4	15 ± 3
Heart V_{45 Gy} (%)	10 ± 3	9 ± 2
Lung V_20Gy (%)	27 ± 2	29 ± 2
Lung mean dose (Gy)	17 ± 1	18 ± 2

ISSN: 1748-717X