Graph-Based Segmentation of Lymph Nodes in CT Data

ACKNOWLEDGEMENTS First of all, I would like to thank Dr. Reinhard Beichel for his patient guidance throughout my study at the University of Iowa. During my study in this department, I have benefited from interactions with many faculty members. I would also like to thank Dr. Geoffrey McLennan for providing part of the experimental data. Dr. Xiaodong Wu contributed the source code for the optimal surface finding. Special thanks go to Dr. Milan Sonka and Dr. An-dreas Wahle, who served on my defense committee. I would also sincerely thank my colleagues-Shanhui Sun, Yunlong Liu, Qi Song and Xin Dou for their help in my research. Xin for their encouraging and comforting. Thanks to Zi Wang for his help and experience.