One of the treatments used to treat an enlarged prostate is a prostate artery embolization (PAE) which uses microscopic particles to block blood flow to the prostate. The procedure involves making a small puncture in your groin or wrist to access the arterial system through which a physician can use image guidance to direct tiny wires/catheters through the blood vessels supplying your prostate. Over time, prostate embolization will cause the gland to shrink, improving symptoms.