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Related Experiment Videos

Will it be feasible to insert endoprostheses under interventional MRI?

P W Stroman1, P Roby, N Alikacem

  • 1Québec Biomaterials Institute, St. François d'Assise Hospital, Québec, Canada.

Journal of Endovascular Surgery : the Official Journal of the International Society for Endovascular Surgery
|November 1, 1996
PubMed
Summary

Magnetic resonance imaging (MRI) is a feasible alternative to X-ray for guiding endoprosthesis insertion. This safer, real-time imaging technique offers improved visibility for endovascular procedures.

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Area of Science:

  • Medical Imaging
  • Interventional Radiology
  • Biomedical Engineering

Background:

  • X-ray imaging is standard for endovascular procedures.
  • Magnetic resonance imaging (MRI) offers potential for safer, more sensitive monitoring.
  • Advances in MRI technology may enhance endovascular surgical monitoring.

Purpose of the Study:

  • To investigate the feasibility of using MRI for endoprosthesis insertion monitoring.
  • To evaluate MRI as a potential replacement for X-ray in endovascular surgery.

Main Methods:

  • Endoprostheses (nitinol stent, polyester sheath) characterized using four MRI techniques.
  • In vitro simulation of endoprosthesis deployment in a model artery.
  • Fast spin-echo MRI technique used for real-time visualization.

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Main Results:

  • Minimal image artifacts observed with fast spin-echo and spin-echo MRI techniques.
  • Improved visibility of endoprostheses and catheters.
  • Sufficient clarity for guiding device placement in a model artery.

Conclusions:

  • Endoprosthesis insertion is feasible under interventional MRI guidance.
  • Interventional MRI systems offer convenience and improved safety.
  • MRI is an attractive alternative to X-ray imaging for endovascular procedures.