title: Segmental artery exchange technique for stable 4F guiding-catheter positioning in embolization of spinal vascular malformations.
abstract: For anatomic and technical reasons, it is often difficult to achieve guiding-catheter stability in the segmental arteries during embolization of spinal vascular lesions. We have developed a segmental artery exchange technique using a thin-walled 4F nontapered catheter that is safe and achieves a stable guiding-catheter position. This catheter accommodates both the flow-guided and variable-stiffness microcatheters, allowing selective catheterization and treatment of spinal vascular lesions.
authors.affiliation: Division of Neuroradiology, Department of Medical Imaging, Toronto Western Hospital, Toronto, ON, Canada.
authors.forename: N F
authors.initials: NF
authors.lastname: Fanning
authors.forename: A
authors.initials: A
authors.lastname: Pedroza
authors.forename: R A
authors.initials: RA
authors.lastname: Willinsky
authors.forename: K G
authors.initials: KG
authors.lastname: terBrugge
mesh_terms: D015901:Angiography, Digital Subtraction; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy*; D002404:Catheterization / Q000295:instrumentation*; D020785:Central Nervous System Vascular Malformations / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D013116:Spinal Cord / Q000098:blood supply*