This is a very good article in today's physics article about the history and development of magnetic resonance imaging, which has become widely used in medical diagnosis. Of course, this emerged from the discovery of nuclear magnetic resonance phenomena, a technique which in itself came from an understanding of quantum mechanics.
As you read this article, pay attention to how it is developed, developed, and improved. Medical physicists are still actively improving this and other aspects of the medical field by incorporating subjects that physicists already know and use. Without advancement in physics, both theoretically and experimentally, there is no transition to the medical arena.