Technical aspects of breast magnetic resonance imaging

The appropriate role for magnetic resonance imaging (MRI) as an adjunct technique to mammography in the detection, diagnosis, staging, and therapy management of breast cancer has been the subject of much current research. The clinical application determines the choice of imaging technique. Time restraints due to the rapid kinetics of contrast enhancement require that trade-offs be made between spatial and temporal resolution, with a resulting effect on sensitivity and specificity. This article discusses some general requirements and recommendations for breast MRI techniques, including dedicated radiofrequency coils, pulse sequence specifications and image quality considerations, fat-suppression techniques, methods of contrast administration, and image postprocessing and interpretation.