AI won’t replace radiologists, but it will dramatically change their jobs

In 2016 Geoffrey Hinton, the Nobel-winning “godfather of AI,” predicted that radiologists—the physicians who read X-rays, ultrasounds, and other images to help make medical diagnoses—would find themselves replaced by computers within five years. Today the field can retort by quoting Mark Twain’s famous quip: The report of my death was an exaggeration.

Radiology’s ranks are in fact growing steadily, with the number of practitioners expected to expand by 26 percent or more over the next three decades. But what Hinton may have missed about the dynamics of the job market should not obscure his prescience: He was correct that human physicians now have a silicon-based colleague in the room that matches or exceeds their performance. In fact, radiology is far and away medicine’s hot spot for AI, making it a bellwether for the adoption of expert decision-making systems across healthcare and perhaps in other fields.

As of early 2026, about three-quarters of the 1,400 AI-enabled medical devices cleared by the Food and Drug Administration were for radiology. Some make physicians more efficient by drafting reports or alerting them to the images that urgently need attention. But other AI tools have the potential to improve on human performance by identifying abnormalities that may not be visible to the human eye, or interpreting images as well as—and sometimes better than—trained radiologists. For example, an analysis of 43 clinical trials concluded that AI-assisted colonoscopies reveal more polyps than conventional ones.

Improving accuracy is important, because the average human error rates involving diagnostic images are estimated to range from 3 to 5 percent, which translates to about 40 million errors worldwide each year. Yet the solution is not as simple as replacing humans with machines. Ten years after Hinton’s sensational prediction, the big question is not whether humans or AI do statistically better at a given task, but how the technical precision of AI can be combined with the experience and flexibility of humans to improve accuracy for the benefit of patients.