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- W2115305588 abstract "Ground Glass Opacity (GGO) is de£ned as hazy increased attenuation within a lung that is not associated with obscured underlying vessels. Since pure (non-solid) or mixed (partially solid) GGO at the thin-section CT are more likely to be malignant than those with solid opacity, early detection and treatment of GGO can improve a prognosis of lung cancer. However, due to indistinct boundaries and inter-or intra-observer variation, consistent manual detection and segmentation of GGO have proved to be problematic. In this paper, we propose a novel method for automatic detection and segmentation of GGO from chest CT images. For GGO detection, we develop a classi£er by boosting k-Nearest Neighbor (k-NN), whose distance measure is the Euclidean distance between the nonparametric density estimates of two regions. The detected GGO region is then automatically segmented by analyzing the 3D texture likelihood map of the region. We applied our method to clinical chest CT volumes containing 10 GGO nodules. The proposed method detected all of the 10 nodules with only one false positive nodule. We also present the statistical validation of the proposed classi£er for automatic GGO detection as well as very promising results for automatic GGO segmentation. The proposed method provides a new powerful tool for automatic detection as well as accurate and reproducible segmentation of GGO." @default.
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- W2115305588 date "2006-08-01" @default.
- W2115305588 modified "2023-09-23" @default.
- W2115305588 title "An Automatic Method for Ground Glass Opacity Nodule Detection and Segmentation from CT Studies" @default.
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- W2115305588 doi "https://doi.org/10.1109/iembs.2006.260285" @default.
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