Contrast-enhanced MRI in spinal arteriovenous malformations and fistulae before and after embolisation therapy.
MRI was performed in six cases of spinal arteriovenous malformation (AVM) and arteriovenous fistula (AVF) before and after embolisation. Intramedullary and perimedullary AVMs showed marked vascular enhancement after embolisation. This was thought to reflect feeding vessel occlusion and correlated well with a favourable clinical outcome. In dural AVFs, contrast-enhanced studies were essential for the diagnosis, unenhanced images being nonspecific. After embolisation, enhancement of the spinal cord was reduced, although one case with a poor outcome showed persistent enhancement.
Department of Radiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
K
K
Hasuo
A
A
Mizushima
F
F
Mihara
S
S
Matsumoto
K
K
Yoshida
T
T
Yoshiura
K
K
Masuda
D000328:Adult; D000368:Aged; D001164:Arteriovenous Fistula / Q000175:diagnosis* / Q000628:therapy; D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000628:therapy; D003287:Contrast Media; D004621:Embolization, Therapeutic; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D013116:Spinal Cord / Q000098:blood supply*; D016896:Treatment Outcome
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA