[Experimental canine maxillofacial arterial embolization with ethylcellulose microspheres].
External carotid artery tree embolization with ethylcellulose microspheres (EMS) was performed in ten mongrel dogs. Angiography, microangiography and pathological observations were carried out after embolization. In conclusion, EMS can permanently embolize the peripheral arterioles and histological changes of maxilla and mandible after embolization of internal maxillary artery are mainly nutrition defective and degeneration, such as microfracture of the bones, bony lacunae empty, disappearance of the intima of Haver's canals and pulpal degeneration. No evidence of whole or focal necrosis of the bones could be found from twelve hours to half a year after embolization.
Yang
J
J
School of Stomatology, Beijing Medical University.
D015901:Angiography, Digital Subtraction; D000818:Animals; D002342:Carotid Artery, External; D002482:Cellulose / Q000031:analogs & derivatives* / Q000627:therapeutic use; D004285:Dogs; D004621:Embolization, Therapeutic; D005145:Face / Q000098:blood supply; D007568:Jaw / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008863:Microspheres
C013517:ethyl cellulose; D002482:Cellulose