Uterine artery embolization: pre- and post-procedural evaluation using magnetic resonance imaging.

Magnetic resonance (MR) imaging has become the preferred method in assessing the uterus and pelvis prior to and following uterine artery embolization (UAE). The multiplanar imaging capabilities, increased spatial and contrast resolution, anatomic detail and assessment of fibroid viability that MR provides over ultrasound allows for accurate pre-treatment planning and post-treatment assessment. The purpose of this article is to demonstrate the use of MR in the selection of patients, anatomic evaluation and procedural planning before UAE, describe the use of MR in evaluating treatment response after UAE and illustrate the use of MR in identifying post-UAE complications. An understanding of these principles is essential in guiding appropriate therapy, determining treatment effectiveness and identifying associated complications before and after UAE.