Probabilistic segmentation of intravascular ultrasound sequences: Image-based method for the automatic detection of the lumen contour on 20MHz IVUS images - Softcover

Mendizabal Ruiz, Eduardo Gerardo

 
9783844325409: Probabilistic segmentation of intravascular ultrasound sequences: Image-based method for the automatic detection of the lumen contour on 20MHz IVUS images
Softcover
ISBN 10: 3844325409 ISBN 13: 9783844325409
Verlag: LAP LAMBERT Academic Publishing, 2011

Inhaltsangabe

Complications attributed to cardiovascular disease (CVD) are currently the main cause of death worldwide. It is known that the majority of adverse CVD-related events are due to coronary artery diseases: a condition in which fatty lesions called plaques are formed on the walls of the vessels. Intravascular ultrasound (IVUS) is a medical image technique that can provide high resolution, cross-sectional images of the interior of the vessels. Segmentation of the lumen and media-adventitia borders in IVUS images is an important procedure for the study and assessment of the atherosclerotic plaques. However, manual segmentation of IVUS images is difficult and time consuming. In this work, an automatic method for the segmentation of the luminal border on IVUS images is presented. The contributions of this work are: (i) a smooth parametrization of the lumen contour, (ii) a custom optimization method that linearly combines the descent directions of the steepest descent and BFGS optimization methods within a trust region that improves convergence, and (iii) the introduction of a multi-scale approach for the segmentation that increases the speed of segmentation.

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Reseña del editor

Complications attributed to cardiovascular disease (CVD) are currently the main cause of death worldwide. It is known that the majority of adverse CVD-related events are due to coronary artery diseases: a condition in which fatty lesions called plaques are formed on the walls of the vessels. Intravascular ultrasound (IVUS) is a medical image technique that can provide high resolution, cross-sectional images of the interior of the vessels. Segmentation of the lumen and media-adventitia borders in IVUS images is an important procedure for the study and assessment of the atherosclerotic plaques. However, manual segmentation of IVUS images is difficult and time consuming. In this work, an automatic method for the segmentation of the luminal border on IVUS images is presented. The contributions of this work are: (i) a smooth parametrization of the lumen contour, (ii) a custom optimization method that linearly combines the descent directions of the steepest descent and BFGS optimization methods within a trust region that improves convergence, and (iii) the introduction of a multi-scale approach for the segmentation that increases the speed of segmentation.

Biografía del autor

E. Gerardo Mendizabal-Ruiz received degrees of electronic engineer and master in computer science and industrial mathematics in Mexico. He is currently pursuing a PhD. degree in computer science at the computational biomedicine lab of the University of Houston in USA where he perform research in medical image analysis.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2011
Sprache
Englisch
ISBN 10 
3844325409
ISBN 13 
9783844325409
Einband
Tapa blanda
Anzahl der Seiten
64
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Verantwortliche Person
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