Four-dimensional computed tomography based respiratory-gated radiotherapy with respiratory guidance system: analysis of respiratory signals and dosimetric comparison.

There were significant differences observed in V 10 Gy , V 20 Gy , V 30 Gy , and V 40 Gy and V 5 Gy showed marginal significance: 48.97 ± 15.37 cc in free breathing CT versus 40.74 ± 11.07 cc in 4D MIP CT ( P = 0.051) for V 5 Gy , 37.71 ± 17.89 cc versus 29.31 ± 15.22 cc ( P = 0.035) for V 10 Gy , 23.02 ± 11. c versus 16.03 ± 8.75 cc ( P = 0.018) for V 20Gy , 15.19 ± 9.24 cc versus 8.94 ± 5.46 cc ( P = 0.034) for V 30 Gy , 9.18 ± 5.88 cc versus 4.90 ± 3.18 cc ( P = 0.035) for V 40 Gy , and 1.64 ± 1.93 cc versus 1.19 ± 1.35 cc ( P = 0.287) for V 50 Gy , respectively.

also in 5,069 other papers