Paper
20 March 2015 Phase congruency map driven brain tumour segmentation
Author Affiliations +
Abstract
Computer Aided Diagnostic (CAD) systems are already of proven value in healthcare, especially for surgical planning, nevertheless much remains to be done. Gliomas are the most common brain tumours (70%) in adults, with a survival time of just 2-3 months if detected at WHO grades III or higher. Such tumours are extremely variable, necessitating multi-modal Magnetic Resonance Images (MRI). The use of Gadolinium-based contrast agents is only relevant at later stages of the disease where it highlights the enhancing rim of the tumour. Currently, there is no single accepted method that can be used as a reference. There are three main challenges with such images: to decide whether there is tumour present and is so localize it; to construct a mask that separates healthy and diseased tissue; and to differentiate between the tumour core and the surrounding oedema. This paper presents two contributions. First, we develop tumour seed selection based on multiscale multi-modal texture feature vectors. Second, we develop a method based on a local phase congruency based feature map to drive level-set segmentation. The segmentations achieved with our method are more accurate than previously presented methods, particularly for challenging low grade tumours.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tünde Szilágyi, Michael Brady, and Ervin Berényi "Phase congruency map driven brain tumour segmentation", Proc. SPIE 9413, Medical Imaging 2015: Image Processing, 94133O (20 March 2015); https://doi.org/10.1117/12.2082630
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Brain

Tissues

Image segmentation

Magnetic resonance imaging

Databases

Brain mapping

Computer aided diagnosis and therapy

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