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Cardiac function estimation from MRI using a heart model and data assimilation: advances and difficulties.

Abstract：

:In this paper, we present a framework to estimate local ventricular myocardium contractility using clinical MRI, a heart model and data assimilation. First, we build a generic anatomical model of the ventricles including muscle fibre orientations and anatomical subdivisions. Then, this model is deformed to fit a clinical MRI, using a semi-automatic fuzzy segmentation, an affine registration method and a local deformable biomechanical model. An electromechanical model of the heart is then presented and simulated. Finally, a data assimilation procedure is described, and applied to this model. Data assimilation makes it possible to estimate local contractility from given displacements. Presented results on fitting to patient-specific anatomy and assimilation with simulated data are very promising. Current work on model calibration and estimation of patient parameters opens up possibilities to apply this framework in a clinical environment.

journal_name

Med Image Anal

journal_title

Medical image analysis

authors

Sermesant M,Moireau P,Camara O,Sainte-Marie J,Andriantsimiavona R,Cimrman R,Hill DL,Chapelle D,Razavi R

doi

10.1016/j.media.2006.04.002

subject

Has Abstract

pub_date

2006-08-01 00:00:00

pages

642-56

issue

4

eissn

1361-8415

issn

1361-8423

pii

S1361-8415(06)00031-4

journal_volume

10

pub_type

杂志文章

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