Table 1.

Applied wish-list for automatic VMAT plan generation for gastric cancer patients

Constraints
Volume		Type	Limit
PTV		Maximum	105% of Dp
PTV Shell 39 mm		Maximum	50% of Dp
Patient		Maximum	105% of Dp
Objectives
Priority	Volume	Type	Goal	Parameters
1	PTV	↓ LTCP	0.4	Dp=45 Gy,α = 4
2	PTV Shell 3 mm	↓ Maximum	90% of Dp
3	Left and Right Kidney	↓ Mean	8 Gy
4	Liver	↓ Mean	15 Gy
5	Heart	↓ EUD	15 Gy	k = 6
6	Spinal Cord	↓ EUD	25 Gy	k = 12
7	PTV Shell 18 mm	↓ Maximum	40% of Dp
	Skin Ring	↓ Maximum	25% of Dp	21 mm
8	Left and Right Kidney	↓ Volume-Dose	25%	12 Gy
	Liver	↓ Volume-Dose	30%	24 Gy
9	Left and Right Lung	↓ Volume-Dose	50%	20 Gy

Abbreviations: D^p prescribed dose, LTCP Logarithmic Tumor Control Probability, α cell sensitivity parameter to achieve adequate target coverage, EUD Equivalent Uniform Dose, k volume parameter