title: Z-shaped microcatheter tip shaping for embolization of aneurysms at the proximal A1 segment of the anterior cerebral artery: a technical note.
abstract: Embolization of an aneurysm at the proximal A1 segment of the anterior cerebral artery (ACA) is technically challenging. We treated four consecutive patients with unruptured aneurysms at the proximal portion of the A1 segment of the ACA. We tested various microcatheter tip shapes before we successfully embolized a lesion with a zigzag-shaped microcatheter tip, which was made by steam shaping. The shape of this microcatheter tip resembled the letter "Z", had a relatively long distal straight segment and was helpful in prompt catheterization of the aneurysm sac and stable placement of the catheter and delivery of coils.
authors: Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
authors: Ha Young
authors: HY
authors: Lee
authors: Jae Sung
authors: JS
authors: Ahn
authors: Dae Chul
authors: DC
authors: Suh
authors: Deok Hee
authors: DH
authors: Lee