Non-invasive vascular elastography: A prospective study

Roch L. Maurice, Jacques Ohayon, Yves Frétigny, Michel Bertrand, Gilles Soulez, Guy Cloutier

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

Changes in vessel wall elasticity may be indicative of vessel pathologies. Recently, endovascular elastography has been proposed as a tool to complement IVUS echograms in pre-operative lesion assessments and to plan endovascular therapy. In this paper, this technology is introduced as an approach to non-invasively characterize superficial arteries. In such a case, a linear array ultrasound transducer is applied on the skin over the region of interest, and the arterial tissue is dilated by the normal cardiac pulsation. Because tissue motion occurs radially within the vessel wall while the ultrasound beam propagates axially, motion parameters might be difficult to interpret. In this paper, the Von Mises coefficient is proposed as a new parameter to characterize the vessel wall. The Lagrangian estimator was used because it computes the full 2D-strain tensor that is required to provide the Von Mises coefficient. The theoretical model was validated with biomechanical simulations of the vascular wall properties. The results allow believing in the potential of the method to differentiate hard plaques and lipid pools from normal vascular tissue.

Original languageEnglish (US)
Pages (from-to)1839-1842
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - 2002
Event2002 IEEE Ultrasonics Symposium - Munich, Germany
Duration: Oct 8 2002Oct 11 2002

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Fingerprint Dive into the research topics of 'Non-invasive vascular elastography: A prospective study'. Together they form a unique fingerprint.

Cite this