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Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
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Imaging of pediatric great vessel stents: Computed tomography or magnetic resonance imaging?

A M den Harder1, D Suchá1, R W van Hamersvelt1

  • 1Department of Radiology, Utrecht University Medical Center, Utrecht, The Netherlands.

Plos One
|February 1, 2017
PubMed

Insights

This study evaluated CT and MRI for assessing pediatric great vessel stents in a phantom model. Both modalities showed good stent lumen visibility and reliable measurements, though in-vitro limitations exist.

Area of Science:

  • Medical Imaging
  • Pediatric Cardiology
  • Interventional Radiology

Background:

  • Complications can arise after great vessel stent implantation in children.
  • Regular imaging follow-up is essential for monitoring these pediatric patients.

Purpose of the Study:

  • To identify the optimal imaging technique for evaluating stents in pediatric great vessels.
  • This research aims to guide post-procedure monitoring strategies.

Main Methods:

  • Five types of large vessel stents were tested in an in-vitro phantom.
  • CT and MRI (T2-weighted, T1-weighted, balanced 3D) were used to image the stents.
  • Two blinded observers assessed stent lumen visibility and measurement reproducibility.

Main Results:

  • CT provided a median stent lumen visibility of 88%.
  • MRI's T2-weighted sequence yielded 82% visibility.
  • Both CT and MRI demonstrated good interobserver reliability and agreement.

Conclusions:

  • CT and MRI are effective in visualizing pediatric great vessel stents in vitro.
  • Both imaging modalities offer reliable measurements for stent assessment.
  • Further in-vivo studies are needed to evaluate performance in clinical conditions like stenosis.
Abstract

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