RT Journal Article SR Electronic T1 Segmental Artery Exchange Technique for Stable 4F Guiding-Catheter Positioning in Embolization of Spinal Vascular Malformations JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 875 OP 876 VO 28 IS 5 A1 Fanning, N.F. A1 Pedroza, A. A1 Willinsky, R.A. A1 terBrugge, K.G. YR 2007 UL http://www.ajnr.org/content/28/5/875.abstract AB SUMMARY: 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.