Segmentation of cardiac cine MR images for extraction of right and left ventricular chambers

A two-stage algorithm for extraction of the ventricular chambers (endocardial surfaces) in flow-enhanced magnetic resonance images is described. In the first stage, the approximate locations and sizes of the endocardial surfaces are determined by intensity thresholding. In the second stage, points o...

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Veröffentlicht in:	IEEE transactions on medical imaging 1995, Vol.14 (1), p.56-64
Hauptverfasser:	Goshtasby, A., Turner, D.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Blood Computerized, statistical medical data processing and models in biomedicine Design methodology Expert systems General aspects. Methods Heart Humans Image segmentation Magnetic resonance Magnetic resonance imaging Medical sciences Myocardium Radiology
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Zusammenfassung:	A two-stage algorithm for extraction of the ventricular chambers (endocardial surfaces) in flow-enhanced magnetic resonance images is described. In the first stage, the approximate locations and sizes of the endocardial surfaces are determined by intensity thresholding. In the second stage, points on each approximated surface are repositioned to nearest locally maximum gradient magnitude points and a generalized cylinder is fitted to them. Examples of ventricular chambers in cine MR images determined by this algorithm are presented.< >
ISSN:	0278-0062 1558-254X
DOI:	10.1109/42.370402