Investigating heartbeat-related in-plane motion and stress levels induced at the aortic root

Wei Wei (1) , Morgane Evin (2) , Stanislas Rapacchi (3) , Frank Kober (3) , Monique Bernard (3) , Alexis Jacquier (3) , Cyril Kahn (2) , Michel Behr (2)

1 Institute for Advanced Study [Tsinghua]
2 LBA UMR T24 - Laboratoire de Biomécanique Appliquée
3 CRMBM - Centre de résonance magnétique biologique et médicale

Background Aortic dissection is rare but a potentially life-threatening illness. Apart from hypertension and aortic dilation [1], the aortic root (AR) motion has also been proposed to be another factor leading to dissection [2, 3]. During the cardiac cycle, the aortic annulus is towed due to ventricular traction in systole and is relaxed in diastole. The traction force induces a spatial movement of the aortic annulus and is transmitted to the ascending

Mots clés: Aortic root motion; Magnetic resonance imagining; Aortic stress; Finite element; Fluid-structure interaction

Domaines: Imagerie; Physique Médicale [physics.med-ph]

Wei Wei, Morgane Evin, Stanislas Rapacchi, Frank Kober, Monique Bernard, et al.. Investigating heartbeat-related in-plane motion and stress levels induced at the aortic root. BioMedical Engineering OnLine, 2019, 18 (1), ⟨10.1186/s12938-019-0632-7⟩. ⟨hal-02117888⟩