Table 1 The prescription properties of the IMRT and VMAT plans

PTV

Target Penalty

Prescription:5000 cGy Minimum Volume:50 % Surface Margin:0.5 cm

Quadratic Overdose

Maximum Dose:5150 cGy RMS Dose Excess:50 cGy Shrink Margin:0.00 cm

Underdose DVH

Objective Dose:4750 cGy Minimum Volume:95 %

Coronary Artery

Overdose DVH

Objective Dose:500 cGy Maximum Volume:76 % Shrink Margin:0.5 cm

Overdose DVH

Objective Dose:1000 cGy Maximum Volume:55 % Shrink MarginL:0.2 cm

Overdose DVH

Objective Dose:2000 cGy Maximum Volume:46 % Shrink MarginL:0.1 cm

Left Lung

Maximum Dose

Maximum Dose:4950 cGy Shrink Margin:0.8 cm

Overdose DVH

Objective Dose:500 cGy Maximum Volume:30 % Shrink Margin:0.0 cm Optimize over all voxels in volume

Overdose DVH

Objective Dose:1000 cGy Maximum Volume:20 % Shrink Margin:0.0 cm

Overdose DVH

Objective Dose:2000 cGy Maximum Volume:15 % Shrink Margin:0.0 cm

Heart

Overdose DVH

Objective Dose:3000 cGy Maximum Volume:3 % Shrink Margin:1.0 cm

Right Breast

Overdose DVH

Objective Dose:500 cGy Maximum Volume:4 % Shrink Margin:0.3 cm

Right Lung

Overdose DVH

Objective Dose:500 cGy Maximum Volume:6 % Shrink Margin:0.0 cm

Liver

Maximum Dose

Maximum Dose:1500 cGy Shrink Margin:0.8 cm

Esophagus

Maximum Dose

Maximum Dose:500 cGy Shrink Margin:0.0 cm

Spinal cord

Maximum Dose

Maximum Dose:800 cGy Shrink Margin:0.5 cm

Body

Quadratic Overdose

Maximum Dose:5000 cGy RMS Dose Excess:30 cGy Shrink Margin:0.00 cm

Quadratic Overdose

Maximum Dose:4500 cGy RMS Dose Excess:40 cGy Shrink Margin:1.00 cm

Maximum Dose

Maximum Dose:6050 cGy Shrink Margin:0.00 cm Optimize over all voxels in volume

Maximum Dose

Maximum Dose:5600 cGy Shrink Margin:0.50 cm