Table 4.

Performance measured by AUC using different combinations of the data and an LOR-LOP-CV strategy. Best performing models use single-phase features combined with arterial–venous delta features.

Sample name	AUC mean	AUC CI ±
Single-phase features
Arterial	0.45	0.065
Venous	0.47	0.081
Delayed	0.46	0.044
Venous + arterial	0.47	0.030
All phases combined	0.70	0.033
Delta features
All delta features	0.67	0.038
Arterial–venous delta features	0.75	0.063
Combinations of single-phase and delta features
Venous + arterial + delta of venous and arterial	0.70	0.034
All phases + arterial–venous delta features	0.76	0.018
All phases combined + all delta features	0.72	0.048

Note: Bold fonts indicate our final model, based on the best results compared to other models in this table.