Myocardial segmentation based on magnetic resonance sequences

• Autorzy: Pieciak T.
• Języki publikacji: EN

Abstrakty

EN

A strain analysis is a novel diagnostics method used in the cardiology. The advanced regional quantitive analysis of the myocardium during a systole and a diastole allows to diagnose a cardiac cycle. Realization of the analysis requires a myocardial segmentation algorithm. In this paper the myocardial segmentation method from the cardiovascular magnetic resonance sequences (CMR) has been presented. The endocardium areas are calculated using active contour algorithm with the gradient vector flow forces (GVF). Apart from that, the algorithm uses fuzzy logic approach to detect the edges. As a result, the curve matches to image contents. The epicardium boundaries are being designated and supplemented by the surrounding analysis and Fourier descriptors. Based on the endocardium and the epicardium boundaries which limit the myocardium it is possible to realize analysis a local stenosis detection and the directional strain during the cardiac cycle. The analysis is based on the CMR images of the left ventricle which were acquired in short axis of left ventricle and radial direction. The most important achievements presented in this paper are fuzzy logic application in the image processing, the active contour segmentation method improvements and the formal descriptions of the myocardium boundaries.

Słowa kluczowe

EN

myocardial segmentation; active contour; myocardial strain; fuzzy logic; Fourier descriptors; cardiovascular magnetic resonance

• Wydawca: Uniwersytet Jagielloński - Collegium Medicum ; Index Copernicus Sp. z o.o.
• Czasopismo: Bio-Algorithms and Med-Systems
• Rocznik: 2010
• Tom: Vol. 6, no. 12
• Strony: 85--90
• Opis fizyczny: Bibliogr. 19 poz., tab., wykr.

Twórcy

autor

Pieciak T.

• AGH University of Science and Technology, Institute of Automatics, Bio-Cybernetics Laboratory, al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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