Abstract：Objective To explore a safe and efficient no-contact method for Chest CT examination on the premise of not changing
the original structure and function of the CT examination equipment, so as to provide a new method for the prevention and
control of the cross infection in the hospital of CT operators and related personnel during the coronavirus disease 2019 epidemic.
Methods A Standard CT scan phantom was scanned on three types of CT scanning equipment from different manufacturers to
determine the chest CT scan positioning parameters，and to simulate and realize the no-contact scanning process. The no-contact
operation process was formulated and optimized. Patients from fever clinic of our hospital from January 17, 2020 to February 19,
2020 were included for examination to further verify the feasibility of no-contact chest CT scan. Results In this study, a total of
1531 patients among 1706 patients with fever were enrolled for chest CT examination, including 820 males and 720 females, with
an average age of (30±15) years old. The no-contact CT examination rate was 89.7%. All the images were diagnostic. There were
8 patients with poor breath-holding who underwent rescan, the rescan rate was 0.52%. In 13 cases, the scan image was out of the
display range and was corrected by supplementary reconstruction due to the poor bed height and lying position tilt; the supplementary
reconstruction rate was 0.85%. Conclusion By performing fine positioning experiments on different types of equipment we realized
the no-contact chest CT scan without changing the hardware. This method minimizes the risk of technician infection and hospital
cross-infection on the premise of ensuring the safety of the patients while obtaining the diagnostic images.
宋婷妮，夏春潮，彭婉琳，张金戈，李玉明，李磊，赵飞，蒲进，张凯，李真林. 新型冠状病毒肺炎疫情期间医患全程无接触胸部CT检查方法的探讨[J]. 中国医疗设备, 2020, 35(6): 35-39.
SONG Tingni, XIA Chunchao, PENG Wanlin, ZHANG Jinge, LI Yuming, LI Lei, ZHAO Fei, PU Jin, ZHANG Kai, LI Zhenlin. Study on the Method of No-Contact Operation During Chest CT Examination of COVID-19. China Medical Devices, 2020, 35(6): 35-39.
