As an imaging informatics advisor, I've seen several cases where patients' pets detected health issues before symptoms appeared or scans were ordered. In my experience evaluating imaging operations, certain breeds with strong senses of smell, like German Shepherds and Retrievers, seem particularly adept at picking up subtle physiological changes signaling disease. For example, one client's Labrador retriever persistently sniffed a mole, prompting a dermatology visit where melanoma was detected early. In another case, a patient's Border Collie kept nudging her side, leading to the findy of a small ovarian cyst on scan. While anecdotal, I believe some dogs can detect subtle chemical changes in the body, and with training could aid in early screening. My firm does not currently use cancer-sniffing dogs, but we follow research in this area closely. Several studies show dogs can identify lung, breast, ovarian and colon cancers with high accuracy. Their sense of smell, up to 100,000 times more sensitive than humans, allows detection of volatile organic compounds released by cancer cells. I hope to see more research on different breeds' abilities and standardizing training to take advantage of dogs' natural talents for non-invasove screening. This could motivate those at high risk to get scanned, enabling earlier diagnosis and better outcomes.