Approaching artery rigid dynamics in IVUS

Aura Hernàndez-Sabaté, Debora Gil, Eduard Fernandez-Nofrerias, Petia Radeva, Enric Martí

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

Tissue biomechanical properties (like strain and stress) are playing an increasing role in diagnosis and long-term treatment of intravascular coronary diseases. Their assessment strongly relies on estimation of vessel wall deformation. Since intravascular ultrasound (IVUS) sequences allow visualizing vessel morphology and reflect its dynamics, this technique represents a useful tool for evaluation of tissue mechanical properties. Image misalignment introduced by vesselcatheter motion is a major artifact for a proper tracking of tissue deformation. In this work, we focus on compensating and assessing IVUS rigid in-plane motion due to heart beating. Motion parameters are computed by considering both the vessel geometry and its appearance in the image. Continuum mechanics laws serve to introduce a novel score measuring motion reduction in in vivo sequences. Synthetic experiments validate the proposed score as measure of motion parameters accuracy; whereas results in in vivo pullbacks show the reliability of the presented methodologies in clinical cases. © 2009 IEEE.
Original languageEnglish
Article number4814694
Pages (from-to)1670-1680
JournalIEEE Transactions on Medical Imaging
Volume28
DOIs
Publication statusPublished - 1 Nov 2009

Keywords

  • Fourier analysis
  • Intravascular ultrasound (IVUS) dynamics
  • Longitudinal motion
  • Quality measures
  • Tissue deformation

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