280
Participants
Start Date
November 30, 2016
Primary Completion Date
May 31, 2019
Study Completion Date
May 31, 2019
Low-dose protocol computed tomography
Radiation dose under the low-dose protocol computed tomography (120 kilovolt, 15 milliampere seconds)
Standard-dose protocol computed tomography
Radiation dose under the standard-dose protocol computed tomography (120 kilovolt, 150 milliampere seconds)
Xuzhou Central Hospital, Xuzhou
Xuzhou Central Hospital
OTHER