Functionalization of endovascular devices with superparamagnetic iron oxide nanoparticles for interventional cardiovascular magnetic resonance imaging View Full Text


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Article Info

DATE

2019-06

AUTHORS

Elvin Blanco, Victor Segura-Ibarra, Danish Bawa, Md Nafiujjaman, Suhong Wu, Haoran Liu, Mauro Ferrari, Alan B. Lumsden, Dipan J. Shah, C. Huie Lin

ABSTRACT

Presently, cardiovascular interventions such as stent deployment and balloon angioplasty are performed under x-ray guidance. However, x-ray fluoroscopy has poor soft tissue contrast and is limited by imaging in a single plane, resulting in imprecise navigation of endovascular instruments. Moreover, x-ray fluoroscopy exposes patients to ionizing radiation and iodinated contrast agents. Magnetic resonance imaging (MRI) is a safe and enabling modality for cardiovascular interventions. Interventional cardiovascular MR (iCMR) is a promising approach that is in stark contrast with x-ray fluoroscopy, offering high-resolution anatomic and physiologic information and imaging in multiple planes for enhanced navigational accuracy of catheter-based devices, all in an environment free of radiation and its deleterious effects. While iCMR has immense potential, its translation into the clinical arena is hindered by the limited availability of MRI-visible catheters, wire guides, angioplasty balloons, and stents. Herein, we aimed to create application-specific, devices suitable for iCMR, and demonstrate the potential of iCMR by performing cardiovascular catheterization procedures using these devices. Tools, including catheters, wire guides, stents, and angioplasty balloons, for endovascular interventions were functionalized with a polymer coating consisting of poly(lactide-co-glycolide) (PLGA) and superparamagnetic iron oxide (SPIO) nanoparticles, followed by endovascular deployment in the pig. Findings from this study highlight the ability to image and properly navigate SPIO-functionalized devices, enabling interventions such as successful stent deployment under MRI guidance. This study demonstrates proof-of-concept for rapid prototyping of iCMR-specific endovascular interventional devices that can take advantage of the capabilities of iCMR. More... »

PAGES

38

References to SciGraph publications

  • 2008-12. Interventional cardiovascular magnetic resonance: still tantalizing in JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE
  • 2010-06. Real-time MR navigation and localization of an intravascular catheter with ferromagnetic components in MAGNETIC RESONANCE MATERIALS IN PHYSICS, BIOLOGY AND MEDICINE
  • 2017-12. CMR fluoroscopy right heart catheterization for cardiac output and pulmonary vascular resistance: results in 102 patients in JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE
  • 2007-05. Artifacts in body MR imaging: their appearance and how to eliminate them in EUROPEAN RADIOLOGY
  • 2012-01. MR fluoroscopy in vascular and cardiac interventions (review) in THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10544-019-0393-x

    DOI

    http://dx.doi.org/10.1007/s10544-019-0393-x

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1113173879

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/30937546


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