TY - JOUR AU - Aura Hernandez-Sabate AU - Debora Gil AU - Eduard Fernandez-Nofrerias AU - Petia Radeva AU - Enric Marti PY - 2009// TI - Approaching Artery Rigid Dynamics in IVUS T2 - TMI JO - IEEE Transactions on Medical Imaging SP - 1670 EP - 1680 VL - 28 IS - 11 KW - Fourier analysis KW - intravascular ultrasound (IVUS) dynamics KW - longitudinal motion KW - quality measures KW - tissue deformation. N2 - 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 vessel-catheter 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. SN - 0278-0062 L1 - http://refbase.cvc.uab.es/files/HGF2009.pdf UR - http://dx.doi.org/10.1109/TMI.2009.2017927 N1 - IAM; MILAB ID - Aura Hernandez-Sabate2009 ER -