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Segmentation of the Common Carotid Artery Intima Media Using Active Contour Models
Hesko, Branislav
Ultrasound measurements of the human carotid artery intima media thickness are conventionally obtained using manual tracing between tissue layers. This article consists of different approach, when intima media thickness is determined automatically. Tissue layers are detected by use of active contour segmentation. This method does not use any type of gradient, only intensity based image is needed. Therefore, robustness to speckle noise is present. A total of 15 carotid artery ultrasound images is analyzed to determine wall thickness. For evaluation, each of the images contains manually added marks by an expert.
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Software Package for Ultrasound Perfusion Imaging
Mézl, M. ; Jiřík, Radovan
In this work a Matlab-based software package for perfusion imaging is presented. It is run with a graphical user interface (GUI) and includes five main steps of perfusion analysis. There are applications for data import, image registration, tissue selection, perfusion analysis and visualization. This software has been used for analysis of abdominal ultrasound sequences. It is modular and each module can be easily modified for various methods as well as different image modalities for example magnetic resonance imaging.
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