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Towards Extra-Luminal Blood Detection from Intravascular Ultrasound Radio Frequency Data

  • E. Gerardo Mendizabal-Ruiz
  • GeorgeBiros
  • Ioannis A. Kakadiaris
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6891)

Abstract

Recent evidence has suggested that the presence and proliferation of vasa vasorum (VV) in the plaque is correlated to an increase in plaque inflammation and destabilization, leading to acute coronary events (e.g., heart attacks). Therefore, the detection and quantification of VV in plaque (i.e., extra luminal blood perfusion) is an important problem since it may enable the development of an index of plaque vulnerability. In this paper, we explore the feasibility of a method that employs a physics-based model of the scattered intravascular ultrasound (IVUS) radio frequency signal for the detection of blood. We evaluate our method using synthetic data and validate it using six 40 MHz pullback sequences acquired with three different IVUS systems from different arteries of rabbits and swines. Our experimental results are very promising and indicate the feasibility of our method for the computation of a feature that leads to automatic extra-luminal blood detection which may be an indication of plaque inflammation.

Keywords

Radio Frequency Intravascular Ultrasound Regularization Term Coronary Plaque Radio Frequency Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • E. Gerardo Mendizabal-Ruiz
    • 1
  • GeorgeBiros
    • 2
  • Ioannis A. Kakadiaris
    • 1
  1. 1.Computational Biomedicine Lab, Departments of Computer Science, Electrical and Computer Engineering, and Biomedical EngineeringUniversity of HoustonHoustonUSA
  2. 2.Department of Biomedical Engineering and School of Computational Science and EngineeringGeorgia Institute of TechnologyAtlantaUSA

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