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Table 3 Comparison of V 30% between IMRT and VMAT plans according to the MLC leaf width and the types of target

From: The effect of multileaf collimator leaf width on the radiosurgery planning for spine lesion treatment in terms of the modulated techniques and target complexity

  

IMRT (cm3)

VMAT (cm3)

p value

MLC

2.5-mm MLC

455.84 ± 316.45

466.10 ± 288.69

0.875

5.0-mm MLC

465.76 ± 315.02

466.78 ± 276.48

0.875

Target shapes

Type 1

315.33 ± 216.79

380.36 ± 257.99

0.075

Type 2

439.84 ± 287.24

470.90 ± 290.22

0.173

Type 3

551.47 ± 368.23

514.65 ± 305.96

0.249

Type 4

536.55 ± 361.91

499.86 ± 296.27

0.249

Overall

 

460.80 ± 308.84

466.44 ± 273.95

1.000