Détection des troubles de contractilité myocardique par suivi pariétal et régional en échocardiographie

Autor:	C. Tilmant, J.-Y. Boire, Laurent Sarry, E. Geoffroy, J.-R. Lusson, Pascal Motreff
Rok vydání:	2005
Předmět:	Speckle pattern Continuity equation Physics::Medical Physics Mathematical analysis Displacement field Biophysics Boundary (topology) Geometry Energy (signal processing) Multiplicative noise Mathematics
Zdroj:	ITBM-RBM. 26:282-284
ISSN:	1297-9562
DOI:	10.1016/j.rbmret.2005.06.016
Popis:	In this paper, a method for the detection of myocardium contractility defect from transthoracic echocardiography is proposed. Speckle phenomenon is considered here as useful functional information and not only as a multiplicative noise. Its distribution and frequential characteristics are used to derive boundary and regional energy terms in order to track myocardium walls with deformable contour models. Moreover, ultrasound density is also estimated from speckle moments to calculate myocardial displacement field from the solution of an inverse continuity equation problem. The clinical feasibility of local and global indices and a prospective study for the multisite stimulation are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1c3fb8494ca805602236913bec47f81d https://doi.org/10.1016/j.rbmret.2005.06.016 Zobrazit plný text záznamu Full Text from ScienceDirect