REPeated mAgnetic resonance Image-guided stereotactic body Radiotherapy (MRIg-reSBRT) for oligometastatic patients: REPAIR, a mono-institutional retrospective study

Table 3 Classification of re-irradiation type with defining the overlap between two courses of SBRT and dosimetric characteristics of irradiated lesions per patients

Pts (1–18) (n° of Gtvs)	Re-SBRT type	Ovlp2Gy (cc)	Ovlp50% (cc)	Liver Volume I SBRT (cc)	Liver Volume re-SBRT (cc)	Re-SBRT GTV volume (cc)	I-SBRT total dose/ dose for fx (Gy)	re-SBRT total dose/ dose for fx (Gy)	Prescription isodoses	Re-SBRTGTVs coverage Dmean (Gy)	BED₁₀_dmean	Timing I- reSBRT (months)
1 (2*)	1 A	873	0	1290	1285	8	24/8	24/8	Target mean	24	43	7
2	1 B	917	7,6	1162	1021	19	50/10	40/8	80%	50	99	16
3	1 A	1305	0	1750	1630	5	35/7	35/7	Target mean	35	59	2
4	1 A	205	0	1138	1096	12,7	40/8	50/10	80%	47	87,7	2
5	1 B	1053	65	1671	1672	16,7	50/10	16/4	Target mean	24	35	18
6 (2*)	1 A	488,5	0	1428	1321	10,8	50/10	40/8	80%	47,7	88,5	5
7	2	27,8	0	1208	1106	2,2	50/10	50/10	80%	59	123	11
8 (2°)	1 A	2098	0	1352	1346	1,9	40/8	50/10	80%	57,3	116,4	3
8 (2°)	1 A	2098	0	1352	1346	5,3	40/8	50/10	80%	57,1	116	3
9 (2*)	1 A	602	0	1403	1349	3,6	50/10	40/8	80%	50	99	2
10	2	0	0	1610	2009	9,1	50/10	50/10	80%	58	120	5
11	2	0	0	1017	1017	2,2	40/8	40/8	80%	46,25	83,25	3
12	1 B	380	1	1128	1131	1,5	35/7	35/7	80%	43,65	71,46	6
13	1 B	962,4	2	1112,7	1266,9	1,7	50/10	50/10	80%	64,62	133,36	18
14	1 A	417	0	975	1029	1,8	50/10	35/7	Target mean	35,6	59,2	5
15 (2*)	1 B	1448	5	1619,9	1647	12,5	40/8	50/10	80%	62,92	132,38	4
16	2	11	0	1219	1115	2,6	50/10	40/8	80%	51	93,06	28
17 (2*)	2	17,8	0	1127	967	3,1	50/10	50/10	80%	50,6	100	12
18 (2°)	1 B	450	3	1198,4	1303	2	40/8	40/8	80%	48,76	88,5	6
18 (2°)	1 B	450	3	1198,4	1303	2,9	40/8	35/7	80%	37,7	61,5	6

Table 3: * Two lesions treated as unique GTV sum with dose prescription to one PTV sum. °Two separated GTVs treated with two different dose prescription to PTVs or two different plans

ISSN: 1748-717X