The perfect stitch: AI to improve surgical tr

WHEN PROFESSOR Yan Liu was growing up in Changchun, China, her father wanted her to become a doctor like him. When she chose computer science, "I was a tiny bit disappointed," Xiwen Liu, a retired anesthesiologist, acknowledges. But their worlds collided in 2011, when the elder Liu was diagnosed with prostate cancer. At 67, he was relatively young, had a healthy lifestyle and had no symptoms. Like many of the 1.2 million men diagnosed with prostate cancer each year, he had surgery to remove tumors in his prostate, but he suffered from incontinence, bleeding and infections for years after the surgery.