Table 1. Classification of tumors in the dataset.

Class	Training set	Test set	Total
Metastasis	1479	651	2130
Glioma	1484	633	2117
Meningioma	1466	632	2098
Pituitary adenoma	1520	629	2149
Vestibular schwannoma	1492	645	2137
No contour	2387	884	3271
Normal brain	1379	592	1971
Overall	11,207	4666	15,873