1 Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, PR China.
2 Department of Radiology, Suining Central Hospital, Suining 629000, Sichuan Province, PR China.
3 Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, PR China. Electronic address: 168345315@qq.com.