Powerful magnetic fields are used to create detailed 3D images of almost any structure in the body. This modality is most often used for neurological imaging (brain and spine), but also for musculoskeletal and even intrauterine imaging.
MRI has become the most versatile and powerful imaging modality due to constant advances in technology. Several specialised uses of MRI has surfaced in recent years, including breast MRI, cardiac MRI, MR angiography and MR imaging of the hepatobiliary system.
The use of MRI in oncology patients has undoubtedly improved the management relating to diagnosis, pre-operative planning and follow-up imaging, particularly in the setting of prostate, cervix and rectal cancer. The recent introduction of whole body diffusion imaging has established itself as the gold standard for the detection of metastatic deposits from a primary cancer, and has replaced older, less sensitive investigations.