Anhui Medical University - Department of Gastroenterology, Beihang University (BUAA) - School of Engineering Medicine, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Molecular Imaging, Harbin Institute of Technology - Department of Control Science and Engineering, Anhui Medical University - Department of Gastroenterology, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Molecular Imaging, Beihang University (BUAA) - School of Engineering Medicine, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Molecular Imaging, Sun Yat-sen University (SYSU), Anhui Medical University - Department of Gastroenterology, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Molecular Imaging and Beihang University (BUAA)