Segmentation of Liver Tumor Using Efficient Global Optimal Tree Metrics Graph Cuts
- Cite this paper as:
- Fang R., Zabih R., Raj A., Chen T. (2012) Segmentation of Liver Tumor Using Efficient Global Optimal Tree Metrics Graph Cuts. In: Yoshida H., Sakas G., Linguraru M.G. (eds) Abdominal Imaging. Computational and Clinical Applications. ABD-MICCAI 2011. Lecture Notes in Computer Science, vol 7029. Springer, Berlin, Heidelberg
We propose a novel approach that applies global optimal tree-metrics graph cuts algorithm on multi-phase contrast enhanced contrast enhanced MRI for liver tumor segmentation. To address the difficulties caused by low contrasted boundaries and high variability in liver tumor segmentation, we first extract a set of features in multi-phase contrast enhanced MRI data and use color-space mapping to reveal spatial-temporal information invisible in MRI intensity images. Then we apply efficient tree-metrics graph cut algorithm on multi-phase contrast enhanced MRI data to obtain global optimal labeling in an unsupervised framework. Finally we use tree-pruning method to reduce the number of available labels for liver tumor segmentation. Experiments on real-world clinical data show encouraging results. This approach can be applied to various medical imaging modalities and organs.
Keywordsmulti-phase contrast enhanced MRI tree-metrics graph cuts liver tumor segmentation color-space mapping global optimal labeling
Unable to display preview. Download preview PDF.