Figure 7: Enlarged images of the peritumoral region in Case 3 from Figure 5. | Scientific Reports

Figure 7: Enlarged images of the peritumoral region in Case 3 from Figure 5.

From: Visualization of tumor-related blood vessels in human breast by photoacoustic imaging system with a hemispherical detector array

Figure 7

The image intensity represents the measured absorbance coefficient at 795 nm, which corresponds to the amount of Hb present. S-factor values corresponding to the SO2 value of Hb are indicated according to the color bar on the right; red indicates close to 100% Hb saturation, whereas blue indicates close to 0%. (a) Peritumoral S-factor image obtained by PAM-03 before chemotherapy and (b) after chemotherapy. The amount and intensity of intratumoral signal increased after chemotherapy, and the S-factor values were low, indicating hypoxia. Yellow arrows indicate hypoxic spotty signals in the tumor.

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