Quantitative analysis of different schemes of mutually-guided photoacoustic/ diffuse optical tomography (PAT/DOT) system. (a) true absorption coefficients of the phantom, (b) DOT image without PAT guide, (c) PAT-DOT image, (d) PAT image compensated by the homogenous model, (e) DOT-PAT image, (f) PAT-DOT-PAT image, (g) intensity profile along the dashed yellow line, (h) intensity profile along the dash-dotted yellow line. PAT-DOT, DOT-PA and PAT-DOT-PAT were described in Introduction Section.

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