期刊
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
卷 108, 期 1, 页码 262-287出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.cmpb.2012.04.006
关键词
Prostate gland segmentation methods; TRUS images; MR images; CT images
类别
资金
- VALTEC of Generalitat de Catalunya, Spain [08-1-0039]
- Conseil Regional de Bourgogne, France
- Spanish Science and Innovation [TIN2011-23704]
Prostate segmentation is a challenging task, and the challenges significantly differ from one imaging modality to another. Low contrast, speckle, micro-calcifications and imaging artifacts like shadow poses serious challenges to accurate prostate segmentation in transrectal ultrasound (TRUS) images. However in magnetic resonance (MR) images, superior soft tissue contrast highlights large variability in shape, size and texture information inside the prostate. In contrast poor soft tissue contrast between prostate and surrounding tissues in computed tomography (CT) images pose a challenge in accurate prostate segmentation. This article reviews the methods developed for prostate gland segmentation TRUS, MR and CT images, the three primary imaging modalities that aids prostate cancer diagnosis and treatment. The objective of this work is to study the key similarities and differences among the different methods, highlighting their strengths and weaknesses in order to assist in the choice of an appropriate segmentation methodology. We define a new taxonomy for prostate segmentation strategies that allows first to group the algorithms and then to point out the main advantages and drawbacks of each strategy. We provide a comprehensive description of the existing methods in all TRUS, MR and CT modalities, highlighting their key-points and features. Finally, a discussion on choosing the most appropriate segmentation strategy for a given imaging modality is provided. A quantitative comparison of the results as reported in literature is also presented. (c) 2012 Elsevier Ireland Ltd. All rights reserved.
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