Table 3.

Classification of neoplastic vs. non-neoplastic brain tissue.

			Fluorescence				Raman				Combined
Biopsy type	No. of spectra	No. of biopsies	Correct classified spectra		Correct classified biopsies		Correct classified spectra		Correct classified biopsies		Correct classified spectra		Correct classified biopsies
			No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
Non tumor	37	7	30	81	6	86	31	84	7	100	32	86	7	100
Astrocytoma	80	14	60	75	10	72	57	71	10	72	62	78	12	86
Oligodendroglioma	50	10	43	86	8	80	37	74	8	80	40	80	9	90
GBM	261	52	221	85	48	92	235	90	48	92	241	92	49	94
GBM recurrent	105	21	95	90	21	100	103	98	21	100	103	98	21	100
Necrosis	25	4	24	96	4	100	25	100	4	100	25	100	4	100
Metastases	119	23	114	96	23	100	119	100	23	100	119	100	23	100
Meningioma	265	53	260	98	53	100	265	100	53	100	265	100	53	100
Schwannoma	38	8	37	97	8	100	38	100	8	100	38	100	8	100
Others	90	17	81	90	17	100	82	91	17	100	83	92	16	94
Total	1070	209	965	90	198	95	991	93	198	95	1008	94	202	97