Complex sentence: Embolization is a non-surgical, minimally-invasive procedure performed by interventional radiologists and interventional neuroradiologists involving selective occlusion of blood vessels, by purposely introducing emboli.
Split into simpler sentences: Embolization is a non-surgical, minimally-invasive procedure performed by an interventional radiologist and interventional neuroradiologists. It involves the selective occlusion of blood vessels, by purposely introducing emboli.