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. Author manuscript; available in PMC: 2009 Jul 6.
Published in final edited form as: Radiother Oncol. 2008 Mar 24;87(1):35–43. doi: 10.1016/j.radonc.2008.02.010

Table 3.

Absolute changes in mean BED, mean NTD and mean delivered dose for the tumors, mean BED, mean NTD, mean delivered dose, and V20 for the total lung and ipsilateral lung in plans 2-4 compared with plan 1 averaged over the 12 patients.

Plan 1 as reference
Plan 2 Plan 3 Plan 4
Tumor BED (Gy) -4.0±6.2 (p=0.05) 0.9±7.6 (p=0.69) 1.0±7.2 (p=0.63)
NTD (Gy) -3.3±5.1 (p=0.05) 0.7±6.3 (p=0.69) 0.9±6.0 (p=0.63)
Mean dose (Gy) -0.7±1.1 (p=0.05) 0.2±1.4 (p=0.70) 0.2±1.3 (p=0.62)

Lung BED (Gy) -1.9±1.2 (p<0.01) -3.1±1.6 (p<0.01) -3.5±2.1 (p<0.01)
NTD (Gy) -1.6±1.0 (p<0.01) -2.6±1.3 (p<0.01) -2.9±1.8 (p<0.01)
Mean dose (Gy) -0.8±0.5 (p<0.01) -1.5±0.8 (p<0.01) -1.6±1.0 (p<0.01)
V20 (%) -1.5±1.0 (p<0.01) -2.7±1.4 (p=0.01) -2.8±1.8 (p<0.01)

Ipsilateral Lung BED (Gy) -3.4±2.0 (p<0.01) -5.4±2.9 (p<0.01) -6.2±3.9 (p<0.01)
NTD (Gy) -2.8±1.6 (p<0.01) -4.5±2.4 (p<0.01) -5.2±3.3 (p<0.01)
Mean dose (Gy) -0.9±1.3 (p=0.04) -2.1±1.3 (p<0.01) -2.5±1.9 (p<0.01)
V20 (%) -2.7±1.7 (p<0.01) -4.9±2.6 (p<0.01) -5.2±3.7 (p<0.01)