Rapid pathologic grading-based diagnosis of esophageal squamous cell carcinoma via Raman spectroscopy and a deep learning algorithm

Table 6 Analysis of peak positions and assignment in Raman spectra of health, low, and high tissues

Raman shift, cm-1	Intensity	Band assignment
891	w	Lauric acid
1004	w	vs(C-C) ring breathing of phenylalanine
1078	w	v(C-C) of lipids
1095	w, m	DNA; symmetric PO, stretching vibration
1132	m	Cytochrome c
1171	w, m	Acetoacetate
1216	m	Amide III and CH2 wagging
1295	w	Amide III delta (CH)2
1315	m	Glycerol
1369	w	Thymine
1440	w	Lipin
1448-1468	w	CH3 deformation

Intensity: “w” means weak (0.4-0.6) and “m” means mid (0.6-0.8).