In India, a groundbreaking initiative is underway where dogs are being trained, alongside artificial intelligence, to identify cancer through human breath analysis. A startup named Dognosis has developed a unique method that involves equipping each dog with a specially designed 3D-printed helmet, which monitors their brain activity. Additionally, the dogs wear harnesses fitted with sensors that gauge their reactions to various samples.
The underlying principle is that tumors alter the body's metabolism, subsequently changing the scent of exhaled breath—something dogs are particularly adept at detecting. With approximately 300 million scent receptors, dogs have a significant advantage over humans, who possess around 5 million. The process requires patients to breathe into a cotton mask for just 10 minutes; this mask is then sealed and analyzed in the lab by the trained dogs.
Currently, the project involves a total of 15 dogs, primarily beagles and shepherds, who are trained using positive reinforcement techniques. This means when they successfully identify the correct scent, they receive a treat. Remarkably, in a single hour, a dog can conduct thousands of scent evaluations, each corresponding to a different sample. Itamar Bitan, co-founder of Dognosis, noted, "Some dogs rush straight to the feeder anticipating their reward, others freeze in place, and some exhibit excitement by scratching the sample."
The AI component of the system assesses the dogs' behavior and correlates it with patient information, including medical history, lifestyle factors, gender, age, and more. Previous research indicated that this combination of canine detection and neural network analysis achieves a cancer detection rate with about 90% sensitivity and specificity, based on an earlier, less complex version of the system that did not include the analysis of the dogs' brain signals.
Dognosis aims to market its technology as a cost-effective solution for early cancer screening. In India, many cancer cases are diagnosed at advanced stages, with approximately 11% of the nation's 1.4 billion individuals at risk of developing the disease. Experts in the field view this initiative as promising but emphasize the necessity for further investigation. Would you consider undergoing screening by a dog paired with AI?
Informational material. 18+.
