200
Participants
Start Date
June 1, 2020
Primary Completion Date
December 31, 2020
Study Completion Date
December 28, 2021
Low-dose computed tomography
Radiation dose under the low-dose protocol computed tomography (120 kilovolt, 15 milliampere seconds)
Standard-dose computed tomography
Radiation dose under the standard-dose protocol computed tomography (120 kilovolt, 150 milliampere seconds)
Xuzhou Central Hospital, Xuzhou
Xuzhou Central Hospital
OTHER