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Table 2 Correlation of toxicity with the maximum point dose delivered at the OAR and the institutional constraints

From: Stereotactic body radiotherapy (SBRT) for locally advanced intrahepatic and extrahepatic cholangiocarcinoma

Toxicity Nr of Fractions OAR Dmax (Gy) delivered EQD23 (Gy) delivered Dmax constraint (Gy) for the OAR EQD23 (Gy) constraint
Gastric bleeding 12 stomach 45.6 62 47.4 65.8
GI bleeding 12 stomach 39.4 49.5 47.4 65.8
Duodenal ulceration 10 duodenum 25 27.5 44.3 65.8
  1. OAR organ at risk, EQD2 3 equieffective doses in 2 Gy (α/β = 3), GI gastro-intestinal, Dmax maximum point dose