Table 2

Tissue optical indices of normal breast and malignant tumors (12 subjects, aged 30–39 years)

Normal

TPEAK

P




Parameter

Mean

Median

Mean

Median

Wilcoxin


stO2

70.7 ± 7.04

69.4

68.4 ± 8.46

71.3

0.57

ctTHb

25.3 ± 8.3

25.1

48.5 ± 18.2

43.3

0.0009

TOI

3.84 ± 2.56

3.49

36.3 ± 47.5

24.9

0.0007


ctTHb, total tissue hemoglobin concentration (ctO2Hb + ctHHb); stO2, tissue hemoglobin oxygenation saturation (ctO2Hb/ctTHb); TOI, tissue optical index (ctHHb × ctH2O/%lipids); TPEAK, peak tumor values.

Tromberg et al. Breast Cancer Research 2005 7:279   doi:10.1186/bcr1358