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Imaging Biomarker Discovery for Lung Cancer Survival Prediction
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MICCAI 2016. 2016 Oct 2; Volume 9901: Pages pp 649-657
Jiawen Yao , Sheng Wang , Xinliang Zhu , Junzhou Huang

Solid tumors are heterogeneous tissues composed of a mixture of cells and have special tissue architectures. However, cellular heterogeneity, the differences in cell types are generally not reflected in molecular profilers or in recent histopathological image-based analysis of lung cancer, rendering such information underused. This paper presents the development of a computational approach in H&E stained pathological images to quantitatively describe cellular heterogeneity from different types of cells. In our work, a deep learning approach was first used for cell subtype classification. Then we introduced a set of quantitative features to describe cellular information. Several feature selection methods were used to discover significant imaging biomarkers for survival prediction. These discovered imaging biomarkers are consistent with pathological and biological evidence. Experimental results on two lung cancer data sets demonstrated that survival models bsuilt from the clinical imaging biomarkers have better prediction power than state-of-the-art methods using molecular profiling data and traditional imaging biomarkers.

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