Preliminary report on harmonization of features extraction process using the ComBat tool in the multi-center “Blue Sky Radiomics” study on stage III unresectable NSCLC

Insights into Imaging

Table 2 Summary of different imaging acquisition protocols necessary for the ComBat harmonization

Protocol	Convolution Kernel	kVp	Frequency
1	B	120	5
2	B10f	120	17
3	B20f	120	12
4	B30f	100	25
5	B30f	120	2
6	B30f	140	1
7	B31f	100	19
8	B31s	130	9
9	B31f	120	9
10	B40f	100	4
11	B40f	120	7
12	FC08	100	11
13	FC08	120	2
14	FC17	100	2
15	STANDARD	120	2