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Table 3 ICG-enhanced photoacoustic signals of tumours at different concentrations

From: Photoacoustic imaging of tumour vascular permeability with indocyanine green in a mouse model

ICG concentration (mg/ml) Signal increase (a.u.)
1.0 0.231 ± 0.036
2.5 0.574 ± 0.120a
5.0 1.005 ± 0.171b
  1. Data are means ± SD. a.u.= arbitrary units
  2. aSignificant difference compared with ICG concentration 1.0 mg/ml (p < 0.010)
  3. bSignificant difference compared with ICG concentration 1.0 and 2.5 mg/ml (p < 0.001 [to 1.0], p < 0.010 [to 2.5])