Article Text

Download PDFPDF
Coil embolization of distal vascular lesion using a 1.5 Fr Marathon microcatheter and ‘free-running’ technique
  1. Chang-Hsien Ou1,
  2. Chiu-Shih Cheng1,
  3. William Winardi2,
  4. Pei-Ling Lin1,
  5. Cheng-Lung Lee1,
  6. Wan-Ching Lin1
  1. 1Neuroradiology, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
  2. 2Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
  1. Correspondence to Wan-Ching Lin, Neuroradiology, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; netter.ou{at}


In distal vascular lesions, such as the distal anterior inferior cerebellar artery or posterior inferior cerebellar artery (PICA) dissecting aneurysm, and dural arteriovenous fistula (dAVF) and arteriovenous malformation (AVM), super-selective catheterization and embolization using liquid agents, such as NBCA or Onyx liquid embolic system, is the preferred treatment.1 2 We used a flow-directed 1.5 Fr Marathon microcatheter (Medtronic, Minneapolis, MN, USA) for embolization because commonly used detachable coil-compatible microcatheters can be too short or rigid for superselection.3–6 We designed an in vitro coil compatibility test for the Marathon microcatheter and developed a ‘free-running’ technique (video 1). Using this technique, we trapped the distal PICA dissecting aneurysm and embolized the fistula points of dAVF precisely and safely without affecting adjacent normal structures, which can occur when applying liquid embolizing agents.1–3 After reviewing the case, we determined that this technique can also potentially be applied for implementing the pressure cooker technique7 and combining the management of AVM.4

Video 1 Free-running technique via 1.5 Fr Marathon microcatheter

  • Aneurysm
  • Arteriovenous Malformation
  • Catheter
  • Fistula
  • Technique

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.


  • Contributors Concept and design: CHO, CSC, WCL. Materials and methods: CHO, WCL, PLL, CLL. Software: CHO, PLL, CLL. Visualization: WW, PLL, CLL. Performed procedure: CHO, CSC, WCL. Drafting of the manuscript: CHO, WW. Critical review: WW, WCL, CSC. Supervision: CHO, WCL.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.