Paul Lauterbur and the Invention of MRI

The story behind the invention of the most important medical diagnostic tool since the X-ray. On September 2, 1971, the chemist Paul Lauterbur had an idea that would change the practice of medical research. Considering recent research findings about the use of nuclear magnetic resonance (NMR) signals to detect tumors in tissue samples, Lauterbur realized that the information from NMR signals could be recovered in the form of images—and thus obtained noninvasively from a living subject. It was an