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UV Exposed Optical Fibers with Frequency Domain Reflectometry for Device Tracking in Intra-arterial Procedures

  • Francois Parent
  • Maxime Gerard
  • Raman Kashyap
  • Samuel KadouryEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10434)

Abstract

Shape tracking of medical devices using strain sensing properties in optical fibers has seen increased attention in recent years. In this paper, we propose a novel guidance system for intra-arterial procedures using a distributed strain sensing device based on optical frequency domain reflectometry (OFDR) to track the shape of a catheter. Tracking enhancement is provided by exposing a fiber triplet to a focused ultraviolet beam, producing high scattering properties. Contrary to typical quasi-distributed strain sensors, we propose a truly distributed strain sensing approach, which allows to reconstruct a fiber triplet in real-time. A 3D roadmap of the hepatic anatomy integrated with a 4D MR imaging sequence allows to navigate the catheter within the pre-interventional anatomy, and map the blood flow velocities in the arterial tree. We employed Riemannian anisotropic heat kernels to map the sensed data to the pre-interventional model. Experiments in synthetic phantoms and an in vivo model are presented. Results show that the tracking accuracy is suitable for interventional tracking applications, with a mean 3D shape reconstruction errors of \(1.6\,\pm \,0.3\) mm. This study demonstrates the promising potential of MR-compatible UV-exposed OFDR optical fibers for non-ionizing device guidance in intra-arterial procedures.

Notes

Acknowledgments

We thank Drs. Guillaume Gilbert and An Tang for their contribution in the 4D-Flow sequence.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Francois Parent
    • 1
  • Maxime Gerard
    • 2
  • Raman Kashyap
    • 1
  • Samuel Kadoury
    • 2
    • 3
    Email author
  1. 1.Fabulas Lab, Department of Engineering PhysicsPolytechnique MontrealMontrealCanada
  2. 2.MedICAL LabPolytechnique MontrealMontrealCanada
  3. 3.CHUM Research CenterMontrealCanada

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