About the Authors

Dan Long

Contributed equally to this work with: Dan Long, Jinwei Wang

Affiliation Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

Jinwei Wang

Contributed equally to this work with: Dan Long, Jinwei Wang

Affiliation Center of Mathematical Sciences, Zhejiang University, Hangzhou, China

Min Xuan

Affiliation Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

Quanquan Gu

Affiliation Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

Xiaojun Xu

Affiliation Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

Dexing Kong

zhangminming@zju.edu.cn (MZ); kong@cms.zju.edu.cn (DK)

Affiliation Department of Mathematics, Zhejiang University, Hangzhou, China

Minming Zhang

zhangminming@zju.edu.cn (MZ); kong@cms.zju.edu.cn (DK)

Affiliation Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MZ DL DK. Performed the experiments: DL MX QG XX. Analyzed the data: DL JW. Contributed reagents/materials/analysis tools: DL JW. Wrote the paper: DL.