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(a) Experimental setup for photoacoustic imaging of hemorrhage in sheep head ex-vivo, (b) Correspondence between the pixel area from the reconstructed photoacoustic image of each injection and blood sample volume validates the TFPAI probe capability to detect different size of hemorrhage model ex-vivo, (c) compensated photoacoustic signal of injected hemorrhagic model of 50% blood:saline dilution at different depths (1–5 cm), (d) Surgically induced cranial window in sheep head to represent fontanelle, (b) generating pseudo hemorrhage model ex-vivo, and (e) PA images of the hemorrhage model at different depths (1-3cm) superimposed on US image

This manuscript is submitted and pending publication (Available upon request).

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