After local anesthesia is placed, an interventional radiologist obtains access to the<unk> al system by piercing the femoral or radial<unk> , usually under ultrasound guidance, with a hollow needle known as a trocar. Through the needle a guidewire is threaded and subsequently the trocar is removed. The guidewire allows a 4 to 5 French sheath to be inserted into the<unk> .8 Contrast material is injected through the sheath or a catheter under fluoroscopic imaging or digital subtraction angiography which outlines the anatomy of the blood vessels. This technique is used to help locate the<unk><unk>  and advance a microcatheter (≤2.7 French) to the ostium of the<unk><unk> . Microparticles, usually Microspheres, are then injected into the<unk><unk>  until full stasis distal<unk><unk>  and the propiretary<unk>  vessels. They function by causing<unk>  (blockage of the<unk>  preventing blood flow to the prostate, functionally resulting in reduced prostate size.
Prostatic artery embolization
Transurethral needle ablation of the prostate
Transurethral resection of the prostate
Transurethral incision of the prostate
Prostatic stent
Urethrectomy
Laparoscopic radical prostatectomy
Radical retropubic prostatectomy