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Titolo:
Estimation of 3D left ventricular deformation from echocardiography
Autore:
Papademetris, X; Sinusas, AJ; Dione, DP; Duncan, JS;
Indirizzi:
Yale Univ, Dept Elect Engn, New Haven, CT 06520 USA Yale Univ New Haven CT USA 06520 Dept Elect Engn, New Haven, CT 06520 USA Yale Univ, Sch Med, Dept Diagnost Radiol, New Haven, CT 06520 USA Yale Univ New Haven CT USA 06520 Diagnost Radiol, New Haven, CT 06520 USA Yale Univ, Sch Med, Dept Med, New Haven, CT 06520 USA Yale Univ New HavenCT USA 06520 h Med, Dept Med, New Haven, CT 06520 USA
Titolo Testata:
MEDICAL IMAGE ANALYSIS
fascicolo: 1, volume: 5, anno: 2001,
pagine: 17 - 28
SICI:
1361-8415(200103)5:1<17:EO3LVD>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
EJECTION FRACTION; 3-DIMENSIONAL ECHOCARDIOGRAPHY; QUANTITATIVE-ANALYSIS; IMAGE SEQUENCES; WALL-MOTION; TAGGED MRI; QUANTIFICATION; TOMOGRAPHY; PERFUSION; SPECT;
Keywords:
left ventricular deformation; cardiac imaging analysis; image analysis; non-rigid motion estimation; strain estimation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
54
Recensione:
Indirizzi per estratti:
Indirizzo: Papademetris, X Yale Univ, Dept Elect Engn, POB 208042, New Haven, CT 06520 USA Yale Univ POB 208042 New Haven CT USA 06520 , CT 06520 USA
Citazione:
X. Papademetris et al., "Estimation of 3D left ventricular deformation from echocardiography", MED IMAGE A, 5(1), 2001, pp. 17-28

Abstract

The quantitative estimation of regional cardiac deformation from 3D image sequences has important clinical implications for the assessment of viability in the heart wall. Such estimates have so far been obtained almost exclusively from Magnetic Resonance (MR) images, specifically MR tagging. In this paper we describe a methodology for estimating cardiac deformations from 3D echocardiography (3DE). The images are segmented interactively and then initial correspondence is established using a shape-tracking approach. A dense motion field is then estimated using a transversely isotropic linear elastic model, which accounts for the fiber directions in the left ventricle. The dense motion field is in turn used to calculate the deformation of theheart wall in terms of strain in cardiac specific directions. The strains obtained using this approach in open-chest dogs before and after coronary occlusion, show good agreement with previously published results in the literature. They also exhibit a high correlation with strains produced in the same animals using implanted sonomicrometers. This proposed method provides quantitative regional 3D estimates of heart deformation from ultrasound images. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/06/19 alle ore 18:03:34