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3D fully convolutional networks for co-segmentation of tumors on PET-CT images
Conference proceeding   Open access

3D fully convolutional networks for co-segmentation of tumors on PET-CT images

Zisha Zhong, Yusung Kim, Leixin Zhou, Kristin Plichta, Bryan Allen, John Buatti and Xiaodong Wu
2018 IEEE 15th International Symposium on Biomedical Imaging (ISBI 2018), Vol.2018-, pp.228-231
04/2018
DOI: 10.1109/ISBI.2018.8363561
PMCID: PMC6878113
PMID: 31772717
url
https://www.ncbi.nlm.nih.gov/pmc/articles/6878113View
Open Access

Abstract

Positron emission tomography and computed tomography (PET-CT) dual-modality imaging provides critical diagnostic information in modern cancer diagnosis and therapy. Automated accurate tumor delineation is essentially important in computer-assisted tumor reading and interpretation based on PET-CT. In this paper, we propose a novel approach for the segmentation of lung tumors that combines the powerful fully convolutional networks (FCN) based semantic segmentation framework (3D-UNet) and the graph cut based co-segmentation model. First, two separate deep UNets are trained on PET and CT, separately, to learn high level discriminative features to generate tumor/non-tumor masks and probability maps for PET and CT images. Then, the two probability maps on PET and CT are further simultaneously employed in a graph cut based co-segmentation model to produce the final tumor segmentation results. Comparative experiments on 32 PET-CT scans of lung cancer patients demonstrate the effectiveness of our method.
Computed Tomography Tumors Image segmentation deep learning Three-dimensional displays fully convolutional networks co-segmentation Lung lung tumor segmentation Biomedical imaging

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