That's completely wrong. Biopsies are still performed all day long for all kinds of reasons. Biopsies get tissue which allows for histopathological exam (ie, looking at the actual cells) so they can identify numerous disease processes. Imaging is used to help perform the biopsies, for example CT guided biopsies, or ultrasound guided biopsies, etc. In fact, the better argument is that imaging has evolved to allow doctors to cause less harm while getting biopsies, and get new types of biopes to help treat disease. A great example is the endobronchial ultrasound which allows you to look at the lymph nodes in the lungs, *biopsy* them, and better stage lung cancer and help plan for possible surgery. Another example is a CT guided biopsy, for example if you are concerned for osteomyelitis of one of the lumbar vertebra, the doctor can use a CT machine to go in and *biopsy* the vertebra, in the old days it would have been a much more difficult and invasive procedure. Another reason biopsies are performed are for difficult to diagnose skin conditions, and examining lymph nodes to see if they have cancer in them. All of which MRI is incapable of doing.
I'm not saying medical imaging isn't amazing, it is, and it is improving. Just saying the idea that they are magically replacing biopsies is wrong. The fact is medical imaging is helping us get better biopsies. ... and now I want to go be an interventional radiologist.