DOUGLAS FARMER, SENIOR EDITOR [email protected]LONDON, Oct. 16, 2024 — By using a laser to generate ultrasound waves that reveal structural changes, photoacoustic tomography (PAT) has shown its value in identifying disease conditions in the microvasculature, the tiny vessels that extend from major veins and arteries. To this point, however, the process has been too slow to capture this information in real time, limiting its value in clinical settings. That is now changing, thanks to a device developed at University College London (UCL) that doctors could potentially hold right in their hands. 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