A 2D–3D hybrid convolutional neural network for lung lobe auto-segmentation on standard slice thickness computed tomography of patients receiving radiotherapy

Table 1 Tumor location information of all cases

Location	Entire cohort	Training-validation cohort	Test cohort
LUL	32	22	10
LLL	12	9	3
RUL	22	16	6
RML	14	4	10
RLL	25	19	6
Total	105	70	35

LUL left upper lobe, LLL left lower lobe, RUL right upper lobe, RML right middle lobe, RLL right lower lobe.

ISSN: 1475-925X