The term healthcare technology may call to mind novel surgical robots, which themselves date to 1985, when a robotic arm assisted in a brain biopsy. But now, robotics are being combined with artificial intelligence and troves of historical medical data, resulting in possibilities that far exceed the sum of their parts. What not long ago seemed like science fiction is already here: 3-D imaging of a patient’s body used in pre-operative planning, so surgeons can “perform” a digital operation...