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Segmentation of the left ventricular endocardium from magnetic resonance images by using different statistical shape models.

Abstract：

:We evaluate in this paper different strategies for the construction of a statistical shape model (SSM) of the left ventricle (LV) to be used for segmentation in cardiac magnetic resonance (CMR) images. From a large database of LV surfaces obtained throughout the cardiac cycle from 3D echocardiographic (3DE) LV images, different LV shape models were built by varying the considered phase in the cardiac cycle and the registration procedure employed for surface alignment. Principal component analysis was computed to describe the statistical variability of the SSMs, which were then deformed by applying an active shape model (ASM) approach to segment the LV endocardium in CMR images of 45 patients. Segmentation performance was evaluated by comparing LV volumes derived by ASM segmentation with different SSMs and those obtained by manual tracing, considered as a reference. A high correlation (r(2)>0.92) was found in all cases, with better results when using the SSM models comprising more than one frame of the cardiac cycle.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Piazzese C,Carminati MC,Colombo A,Krause R,Potse M,Auricchio A,Weinert L,Tamborini G,Pepi M,Lang RM,Caiani EG

doi

10.1016/j.jelectrocard.2016.03.017

subject

Has Abstract

pub_date

2016-05-01 00:00:00

pages

383-91

issue

3

eissn

0022-0736

issn

1532-8430

pii

S0022-0736(16)00098-4

journal_volume

49

pub_type

杂志文章

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