Table 5.

Statistical testing results of the hold-out set with an additional four kidneys using the final production CNN model

(A)
Tissue		Testing of the hold-out set using the final CNN model
		Cortex	Medulla	Calyx	Fat	Pelvis	Carcinoma
True	Cortex	9997	0	0	3	0	0
	Medulla	0	10000	0	0	0	0
	Calyx	161	1	9697	90	0	51
	Fat	0	0	32	9968	0	0
	Pelvis	0	0	0	0	10000	0
	Carcinoma	0	0	0	35	196	9796

(B)
Performance metrics of the hold-out set testing using the final CNN model
Tissue	Accuracy	Precision	Recall	F1 score
Cortex	99.73%	98.42%	99.97%	99.19%
Medulla	100.00%	99.99%	100.00%	100.00%
Calyx	99.44%	99.67%	96.97%	98.30%
Fat	99.73%	98.73%	99.68%	99.20%
Pelvis	99.67%	98.33%	100.00%	99.16%
Carcinoma	99.53%	99.48%	97.96%	98.71%

A: confusion matrix and B: performance metrics.