Table 1. Blind evaluations of SRVH, frozen H&E, and FFPE staining on subtypes of glioma.

Imaging modality	Histologic subtype	Pathologist 1		Pathologist 2		Pathologist 3		Accuracy (%)
		Correct	Incorrect	Correct	Incorrect	Correct	Incorrect
SRVH
	Astrocytoma	6	0	6	0	5	1	94.4
	Oligodendroma	5	0	5	0	4	1	93.3
	High-grade glioma	23	3	21	5	20	6	82.1
	Other tumors	4	2	5	1	5	1	77.8
	Total	38	5	37	6	34	9	84.5
Accuracy (%)		88.4		86.0		79.1
FFPE
	Astrocytoma	7	0	6	1	7	0	95.2
	Oligodendroma	7	0	7	0	6	1	95.2
	High-grade glioma	20	2	19	3	18	4	86.4
	Other tumors	6	1	5	2	7	0	85.7
	Total	40	3	37	6	38	5	89.1
Accuracy (%)		93.0		86.0		88.4
Frozen H&E
	Astrocytoma	4	3	3	4	4	3	52.4
	Oligodendroma	5	2	4	3	4	3	61.9
	High-grade glioma	15	7	14	8	12	10	62.1
	Other tumors	3	1	3	1	2	2	66.7
	Total	27	13	24	16	22	18	60.8
Accuracy (%)		67.5		60.0		55.0