It involves the selective occlusion of blood vessels by purposely introducing emboli.

In the absence of fracture and dislocation, occlusion of blood vessels becomes the major cause of death, rather than asphyxiation.

With progressive distension of the intestinal wall, there is occlusion of blood vessels, firstly veins, then arteries.

Embolization is the occlusion of blood vessels most commonly with a glue-like substance introduced by a radiographically guided catheter.

In interventional radiology Onyx is a trade name for a copolymer uesd for embolisation therapy, which involves the occlusion of blood vessels.

Microscopically there is ischemic necrosis and associated inflammation in the heart, brain, spleen and liver due to occlusion of blood vessels by megaloschizonts in endothelial cells.

Sometimes, to prevent further occlusion of blood vessels, patients are started on an antiplatelet agent (aspirin, clopidogrel, or aspirin/dipyridamole) or sometimes an anticoagulant (warfarin) once hemorrhage has been excluded with imaging.

In interventional radiology, DMSO is used as a solvent for ethylene vinyl alcohol in the Onyx liquid embolic agent, which is used in embolisation, the therapeutic occlusion of blood vessels.