Identification of Lesional Tissues and Nonlesional Tissues in Early Gastric Cancer Endoscopic Submucosal Dissection Specimens Using a Fiber Optic Raman System

Table 2

Integral energy ratio and peak intensity ratio values.

E1/E2				E3/E4				I1560 cm^-1/I1103 cm^-1
Can1	Can2	Nor		Can1	Can2	Nor		Can1	Can2	Nor
0.63	0.75	0.55	0.12	0.55	0.60	0.49	0.27	0.61	0.70	0.47	0.14
0.60	0.77	0.56	0.06	0.56	0.72	0.51	0.15	0.48	0.78	0.51	0.14
0.87	0.78	0.36	0.01	0.87	0.77	0.44	0.21	0.79	0.67	0.33	0.08
0.77	0.78	0.20	0.51	0.79	0.78	0.32	0.56	0.71	0.68	0.24	0.46
0.56	0.80	0.53		0.59	0.78	0.57		0.55	0.72	0.46
0.89	0.85	0.33		0.87	0.86	0.43		0.78	0.81	0.33
0.73	0.79	0.40		0.74	0.78	0.53		0.60	0.74	0.36
0.75	0.88	0.14		0.79	0.88	0.19		0.77	0.86	0.19
0.71	0.56	0.44		0.70	0.61	0.49		0.61	0.50	0.48
0.84	0.74	0.38		0.77	0.75	0.46		0.80	0.69	0.39
0.81	0.57	0.43		0.77	0.62	0.54		0.73	0.53	0.39
0.69	0.80	0.11		0.70	0.84	0.19		0.66	0.71	0.18
0.98	0.80	0.09		0.84	0.81	0.09		0.88	0.75	0.17
0.83	0.70	0.19		0.76	0.70	0.32		0.73	0.62	0.23
0.80	0.74	0.43		0.70	0.70	0.52		0.77	0.63	0.33
0.73		0.19		0.76		0.34		0.65	0.70	0.22
0.53		0.18		0.63		0.26		0.46	0.78	0.22
0.52		0.36		0.62		0.41		0.47	0.67	0.33

E1: E1500-1600 cm^-1; E2: E1050-1150 cm^-1; E3: E1350-1500 cm^-1; E4: E1200-1350 cm^-1; Can1: Adenocarcinoma tissues; Can2: High-grade intraepithelial neoplasia tissues.