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Table 1 The DVH goal for the PTV and OARs

From: Feasibility study of volumetric modulated arc therapy with Halcyon™ linac for total body irradiation

 

Parameters

DVH goal

PTVa

D2%

 < 120%

 

D50%

Around 105%

 

D95%

 > 80%

Lung

Dmean

 < 10.0 Gy

 

V12Gy

 < 2.0%

Kidney

Dmean

 < 10.0 Gy

 

V12Gy

0%

Lens

Dmean

 < 9 Gy

Testes

Dmax

 < 6 Gy

 

Dmean

 < 5 Gy

  1. DVH, dose-volume histogram; PTV, planning target volume; OARs, organs at risk; D2%, dose to 2% of the volume; D50%, dose to 50% of the volume; D95%, dose to 95% of the volume; Dmean, mean dose; V12Gy, total volume receiving 12 Gy; Dmax, maximum dose
  2. a50% doses were set to 12 Gy