Future Potential Clinical Applications of Spectroscopic Techniques in Human Diseases - Vibrational Spectroscopy for Tissue Analysis - page 308

0.16

2880

0.14

1096
992

1442 1260

2930

2851

0.12

0.10

1662

0.08

0.06

0.04

0.02

0.00

-0.02

3000 2500

Wavenumber/cm - 1500

2000 1000

Figure 5.5
Raman difference spectra among various grades of IDC and control tissues. Grade I minus
control, Grade II minus control, and Grade III minus control are in black, red, and blue, respec-
tively. Horizontal double lines indicate the level of noise in order to facilitate justification of
peak significance.

0.25

2880

2851

0.20

1442

0.15

1662 780

1260

1955

992

0.10

0.05

0.00

3000 2500 2000

Wavenumber/cm -1

1500 1000

Figure 5.7
Raman difference spectra among various grades of DCIS and control tissues. LNG grade
minus control, ING grade minus control, and HNG grade minus control are in red, black and
blue, respectively. Horizontal double lines indicate the level of noise in order to facilitate justi-
fication of peak significance.