Pulmonary Nodule Detection from 3D CT Image with a Two-Stage Network

Table 3

Detection sensitivity and the CPM score achieved with different loss functions.

Loss functions	1/8 FPs/scan	1/4 FPs/scan	1/2 FPs/scan	1 FPs/scan	2 FPs/scan	4 FPs/scan	8 FPs/scan	CPM
Focal loss	0.784	0.837	0.863	0.899	0.916	0.942	0.954	0.885
MCE loss	0.833	0.870	0.898	0.921	0.938	0.951	0.960	0.910