Table 2.

Normalized confusion matrix of the “real-world” test dataset for the dCNN, considering the radiological reports as ground truth

	Reference:radiological report	PREDICTED
		RMLO projections				RCC projections
		ACR A	ACR B	ACR C	ACR D	ACR A	ACR B	ACR C	ACR D
GROUND TRUTH	ACR A	86.8	18.2	1.5	0.0	84.6	20.8	1.6	0.0
	ACR B	12.6	68.6	17.7	0.0	8.5	64.3	10.0	0.0
	ACR C	0.6	11.5	63.5	18.4	5.5	10.4	60.2	12.9
	ACR D	0.0	1.7	17.3	81.6	1.5	4.5	28.1	87.1

ACR, American College of Radiology; dCNN, deep convolutional neural network; RCC, right craniocaudal;