In vivo velocity vector imaging and time-resolved strain rate measurements in the wall of blood vessels using MRI

Stéphane Avril (1, 2, 3, 4) , Fabien Schneider (5) , Chrisitan Boissier (6) , Zhi-Yong Li (7)

1 CIS-ENSMSE - Centre Ingénierie et Santé
2 DB2M-ENSMSE - Département Biomécanique et Biomatériaux
3 LCG-ENSMSE - UMR 5146 - Laboratoire Claude Goux
4 IFRESIS - Institut Fédératif de Recherche en Sciences et Ingénierie de la Santé
5 GRT - Groupe de recherche sur la thrombose, pharmacologie des antithrombotiques et situations à risque
6 LMV - Laboratoire de Médecine Vasculaire
7 SBSME - School of Biological Science and Medical Engineering

In this paper, we present a new approach for velocity vector imaging and time-resolved measurements of strain rates in the wall of human arteries using MRI and we prove its feasibility on two examples: in vitro on a phantom and in vivo on the carotid artery of a human subject. Results point out the promising potential of this approach for investigating the mechanics of arterial tissues in vivo.

Mots clés: Vascular mechanics; Velocity vector imaging; MRI; Strain rate

Domaines: Génie des procédés; Biomécanique [physics.med-ph]; Biomécanique [physics.med-ph]

Stéphane Avril, Fabien Schneider, Chrisitan Boissier, Zhi-Yong Li. In vivo velocity vector imaging and time-resolved strain rate measurements in the wall of blood vessels using MRI. Journal of Biomechanics, 2011, 44 (5), pp.979-983. ⟨10.1016/j.jbiomech.2010.12.010⟩. ⟨hal-00665369⟩