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Table 1 Tumor growth time* compared to 18 Gy in a sigle fraction

From: The in vivo study on the radiobiologic effect of prolonged delivery time to tumor control in C57BL mice implanted with Lewis lung cancer

Radiation schedule TGT (days) ± SE p value
Control 8.1 ± 0.6 <0.001
18 Gy as a single dose 19.9 ± 2.3  
9 Gy× 2 fractions at 60 min intervals 14.0 ± 1.8 <0.001
2.57 Gy×7 at 10 min intervals 14.3 ± 1.8 <0.001
9 Gy× 2 fractions at 30 min intervals 17.7 ± 2.5 0.034
2.57 Gy×7 at 5 min intervals 17.7 ± 2.6 0.037
  1. * The tumor growth time (TGT) was defined as the time required for the initial tumor size to quadruple after treatment. Each date represents mean ± SE.