Over the past few years, magnetic resonance imaging (MRI) has been shown to be of great value in imaging the pelvis. Its advantages derive from its multiplanar capability and high soft-tissue contrast, which are particularly significant in imaging the prostate and seminal vesicles. MRI, particularly with endorectal surface coils, provides excellent visualization of the prostate and periprostatic anatomy in multiple planes. It is also useful in evaluating the remainder of the pelvis, including lymph nodes and the bony pelvis. This makes MRI the most reliable noninvasive staging modality for prostate cancer.