Comput Math Methods Med - Unsupervised cardiac image segmentation via multiswarm active contours with a shape prior.

Tópicos

{ imag(2675) segment(2577) method(1081) }
{ method(1557) propos(1049) approach(1037) }
{ model(2656) set(1616) predict(1553) }
{ estim(2440) model(1874) function(577) }
{ import(1318) role(1303) understand(862) }
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{ perform(1367) use(1326) method(1137) }
{ blood(1257) pressur(1144) flow(957) }
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{ bind(1733) structur(1185) ligand(1036) }
{ treatment(1704) effect(941) patient(846) }
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{ method(2212) result(1239) propos(1039) }

Resumo

This paper presents a new unsupervised image segmentation method based on particle swarm optimization and scaled active contours with shape prior. The proposed method uses particle swarm optimization over a polar coordinate system to perform the segmentation task, increasing the searching capability on medical images with respect to different interactive segmentation techniques. This method is used to segment the human heart and ventricular areas from datasets of computed tomography and magnetic resonance images, where the shape prior is acquired by cardiologists, and it is utilized as the initial active contour. Moreover, to assess the performance of the cardiac medical image segmentations obtained by the proposed method and by the interactive techniques regarding the regions delineated by experts, a set of validation metrics has been adopted. The experimental results are promising and suggest that the proposed method is capable of segmenting human heart and ventricular areas accurately, which can significantly help cardiologists in clinical decision support.

Resumo Limpo

paper present new unsupervis imag segment method base particl swarm optim scale activ contour shape prior propos method use particl swarm optim polar coordin system perform segment task increas search capabl medic imag respect differ interact segment techniqu method use segment human heart ventricular area dataset comput tomographi magnet reson imag shape prior acquir cardiologist util initi activ contour moreov assess perform cardiac medic imag segment obtain propos method interact techniqu regard region delin expert set valid metric adopt experiment result promis suggest propos method capabl segment human heart ventricular area accur can signific help cardiologist clinic decis support

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