I'm only vaguely familiar with either technology, but I don't understand how a handheld ultrasound scanner can possibly substitute for a stethoscope.
I know this is a flawed analogy, but I imagine somebody walking up to an electronics tech and saying "Hey, you don't need that oscilloscope anymore because we bought this thermal camera. Don't you know that oscilloscopes are old technology from the 19th century? Why, they didn't even know what electrons were back then!".
I know this is a flawed analogy, but I imagine somebody walking up to an electronics tech and saying "Hey, you don't need that oscilloscope anymore because we bought this thermal camera. Don't you know that oscilloscopes are old technology from the 19th century? Why, they didn't even know what electrons were back then!".