Physics of magnetic resonance imaging: from spin to pixel

Abstract

Magnetic resonance imaging has become a major diagnostic tool in modern medicine. MRI makes it possible to obtain highly contrasted body images without ionizing radiation. Using the magnetic properties of hydrogen protons, MRI is at the crossroads between physics, electronics, signal processing and informatics. In this introductory text, the basic physical principles of MRI image formation are explained. Some important clinical applications are also presented.