Impact of interplay effects on spot scanning proton therapy with motion mitigation techniques for lung cancer: SFUD versus robustly optimized IMPT plans utilizing a four-dimensional dynamic dose simulation tool

Table 1 Patient characteristics: tumor location, target volumes, tumor amplitude (maximum distance between GTVs at two phases), distance between GTV and OARs

Patient name	Tumor location	GTV volume on CT50% (cc)	iGTV volume on CT40-60% (cc)	iGTV volume on CT30-70% (cc)	Amplitude (mm)	Heart within 2 cm from iGTV	Esophagus within 2 cm from iGTV	Spinal Cord within 2 cm from iGTV
P101	RUL	31.8	37.8	41.3	7.5	○	○
P103	RUL	57.6	63.1	65.0	5.8		○	○
P104	LUL	46.5	59.2	65.0	5.2	○	○
P105	LLL	33.3	43.5	47.7	7.9	○
P106	RUL	145.5	167.6	171.0	5.8	○	○	○
P107	LUL	19.8	21.9	22.7	3.7
P108	RUL	9.6	12.2	13.6	3.0
P110	RLL	52.2	68.9	75.7	7.0	○	○
P111	RLL	81.3	88.7	97.2	12.0	○	○
P113	LLL	73.0	75.1	81.6	6.6	○	○
P114	RLL	162.3	173.7	192.7	10.0	○	○	○
P115	RUL	6.2	7.6	8.7	3.6			○
P116	LUL	34.7	38.7	41.3	3.5	○
P117	RUL	9.7	10.9	12.9	4.7
P118	RUL	12.7	17.9	19.2	6.8

iGTV, internal gross tumor volume; LLL, left lower lobe; LUL, left upper lobe; RUL, right upper lobe; RML, right middle lobe; RLL, right lower lobe

ISSN: 1748-717X