Table 6.

All performance results for the three proposed models (where Men, Gli, and Pit refer to meningioma, glioma, and pituitary tumor, respectively).

Model	Class	Accuracy	Precision	Sensitivity	F1-Score	Specificity	NPV	MCC
VGG19 + CNN	Gli.	96.97	93.81	100	96.81	94.40	100	94.10
	Men.	97.44	98.92	90.2	94.36	99.70	97.02	92.87
	Pit.	99.06	100	96.92	98.44	100	98.68	97.80
VGG19 + GRU	Gli.	95.01	95.87	89.92	92.8	97.84	94.58	89.01
	Men.	94.46	87.27	94.12	90.1	94.59	97.61	86.78
	Pit.	98.89	98.46	98.46	98.46	99.13	99.13	97.60
VGG19 + Bi-GRU	Gli.	96.11	94.05	97.21	95.6	95.26	97.79	92.15
	Men.	96.59	95.83	90.20	92.93	98.71	96.83	90.76
	Pit.	98.54	97.69	97.69	97.69	98.93	98.93	96.62