Figure 4.

DL‐enhanced dynamic functional PA neuroimaging of a rat in vivo. a) Representative PA sO₂ MAP images of a rat's brain in vivo, showing the full view, cluster view, and DL prediction under an oxygen challenge (Movie S5, Supporting Information). b) Time‐lapse PA HbO, HbR, and sO₂ signals. c) Comparisons of the error ratios of the cluster‐view and prediction HbO, HbR, and sO₂ images to the full‐view image. HbO, concentration of oxy‐hemoglobin; HbR, concentration of deoxy‐hemoglobin; and sO₂, hemoglobin oxygen saturation.