Magnetic resonance imaging MRI - This procedure uses a powerful magnetic field, radio frequency pulses and a computer to produce highly detailed pictures of the soft tissue (as well as virtually all other body structures). In the case of fibroids, MRI can help to delineate multiple growths of various sizes in order to insure that all may be removed. Because of its specificity, the MRI can help to distinguish fibroids from the one other uterine abnormality that it can sometimes be confused with, adenomyosis. Adenomyosis cannot be removed surgically, however fibroids can – thus the importance of distinguishing between the two.