Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Jing Qu, Lin Lin, Shuyi Xie, Feng Li, Jinxin Liu, Wanhua Guan, Zhiping Zhang, Qingxin Gan, Chengcheng Yu, Rui Jiang, Zhoukun Ling, Yanhong Yang, and Xiaoping Tang

2 Common CT Features of COVID-19 Pneumonia . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Chengcheng Yu, Wanhua Guan, Shuijiang Cai, and Fei Shan

3 CT Features of Early COVID-19 Pneumonia (PCR-Positive) . . . . . . . . . . . . . . . . 17 Zhiping Zhang, Yan Ding, and Bihua Chen

4 CT Features of Intermediate Stage of COVID-19 Pneumonia . . . . . . . . . . . . . . . . 45 Lin Lin, Xi Xu, and Weiping Cai

5 CT Features of Late Stage of COVID-19 Pneumonia . . . . . . . . . . . . . . . . . . . . . . . 71 Yanhong Yang, Peixu Wang, and Fengjuan Chen

6 Chest Features of Severe and Critical Patients with COVID-19 Pneumonia . . . . 91 Jing Qu, Xilong Deng, and Yanqing Ding

7 Role of CT and CT Features of Suspected COVID-19 Patients (PCR Negative) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Qingxin Gan, Tianli Hu, and Songfeng Jiang

8 Follow-Up CT of Patients with First Negative CT But Positive PCR for COVID-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 Zhoukun Ling, Deyang Huang, and Chunliang Lei

9 Imaging Analysis of Family Clustering COVID-19 . . . . . . . . . . . . . . . . . . . . . . . . .163 Rui Jiang, Xiaoneng Mo, and Yueping Li

10 Residual CT Features in Recovery Stage of COVID-19 Pneumonia . . . . . . . . . . .179 Yanhong Yang, Lieguang Zhang, Haiyan Shi, and Sufang Tian

11 CT Features and Pathological Analysis of COVID-19 Death . . . . . . . . . . . . . . . . .187 Jing Qu, Li Liang, Meiyan Liao, and Ying Liu