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Updated: Feb 4, 2026

Monitoring the Wall Mechanics During Stent Deployment in a Vessel
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Monitoring the Wall Mechanics During Stent Deployment in a Vessel

Published on: May 8, 2012

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Usefulness of Vessel Wall MR Imaging for Follow-Up after Stent-Assisted Coil Embolization of Intracranial Aneurysms

S Kim1, M Kang2, D W Kim1

  • 1From the Departments of Radiology (S.K., M.K., D.W.K.).

AJNR. American Journal of Neuroradiology
|September 29, 2018
PubMed
Abstract

Insights

Vessel wall MRI offers superior visualization and diagnostic accuracy for assessing stented arteries after intracranial aneurysm treatment compared to MRA. This alternative imaging method shows promise for improved follow-up care.

Area of Science:

  • Neuroradiology
  • Medical Imaging
  • Interventional Neurology

Background:

  • Follow-up imaging for intracranial aneurysms treated with stent-assisted coiling is often complicated by magnetic resonance angiography (MRA) artifacts.
  • Vessel wall magnetic resonance imaging (MRI) presents a potential alternative for evaluating these stented arteries.

Purpose of the Study:

  • To evaluate the usefulness of vessel wall MRI as an alternative to MRA for assessing the patency of stented parent arteries after stent-assisted coiling for intracranial aneurysms.

Main Methods:

  • A retrospective review of 47 patients who underwent 3D TOF-MRA, vessel wall MRI, and digital subtraction angiography (DSA) after stent-assisted coiling.
  • Comparison of visualization quality, signal intensity, diagnostic accuracy, and concordance with DSA between TOF-MRA and vessel wall MRI.

Main Results:

  • Vessel wall MRI demonstrated significantly superior visualization of stented parent arteries compared to TOF-MRA (P < .001).
  • Vessel wall MRI achieved excellent positive predictive value (100%) and high concordance with DSA (κ = 1), while TOF-MRA had poor positive predictive value (11%) and low concordance (κ = 0.038).

Conclusions:

  • Vessel wall MRI is a valuable tool for evaluating the patency of stented arteries following stent-assisted coil embolization of intracranial aneurysms.
  • This imaging technique may overcome the limitations of MRA in artifact-prone situations.

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