About the Authors

Xu Li

Contributed equally to this work with: Xu Li, Xiao-Bo Mao

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Xiao-Bo Mao

Contributed equally to this work with: Xu Li, Xiao-Bo Mao

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Ren-Yi Hei

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Zhi-Bin Zhang

Affiliation Perimed China Ltd, Beijing, China

Li-Ting Wen

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Peng-Zhi Zhang

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Jian-Hua Qiu

qiujh@fmmu.edu.cn (J-HQ); qiaoli@fmmu.edu.cn (LQ)

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Li Qiao

qiujh@fmmu.edu.cn (J-HQ); qiaoli@fmmu.edu.cn (LQ)

Affiliation Department of Otolaryngology-Head and Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China

Competing Interests

Perimed Ltd. offered PSI laser speckle contrast blood perfusion imager and consultancy services in this study. Zhi-Bin Zhang is an employee of Perimed China Ltd. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JHQ LQ. Performed the experiments: XL XBM RYH ZBZ LTW PZZ. Analyzed the data: XL LQ XBM. Wrote the paper: XL.