A new technique helps surgeons better visualize cancer cells during operations, improving their precision in removing tumors. Existing imaging methods like MRI or CT scans often lack the detail needed to clearly distinguish cancerous tissue from healthy tissue. While fluorescence-guided imaging uses special contrast agents that emit light to highlight tumors, it still struggles to show clear borders. To solve this, researchers developed fluorescence lifetime imaging, which measures how long the contrast agent glows, giving a more accurate picture of the tumor’s edges. ETRO has created a special camera for this purpose, which is now being tested on dogs before it is used in human surgeries, with the goal of making cancer operations safer and more effective.