Developing a Magnetic Resonance-Compatible Catheter for Cardiac Catheterization

Wei Yao*, Tobias Schaeffter, Lakmal Seneviratne, Kaspar Althoefer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Magnetic Resonance Imaging (MRI) is a means to guide cardiac interventions and provide excellent soft tissue contrast while avoiding radiation hazards. This paper investigates and evaluates a new Magnetic Resonance (MR)-compatible catheter for cardiac catheterization. Important mechanical properties of the catheter are measured and investigated; these include flexibility, pushability, and torquability. The mechanical performance of the MR-compatible and steerable catheter is benchmarked against three commercially-available clinical ablation catheters that are not MR-compatible. The MR-compatibility of the proposed catheter is also evaluated through an experimental study inside a 1.5 T MRI scanner. The new catheter is shown to have a mechanical performance comparable to that of existing catheters while being MR compatible. [DOI: 10.1115/1.4007281]

Original languageEnglish
Article number041002
Number of pages7
JournalJournal of medical devices-Transactions of the asme
Volume6
Issue number4
DOIs
Publication statusPublished - Dec 2012

Keywords

  • MRI
  • SUSCEPTIBILITY
  • ANGIOGRAPHY
  • GUIDEWIRES
  • RIGIDITIES
  • ABLATION
  • NITINOL
  • RISK

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