An Observational Study of Percutaneous Glomerular Filtration Rate (TGFR) in the Early Warning of Contrast-induced Acute Kidney Injury During the Peri-examination Period of Emergency Enhanced CT

​ Conditions: Contrast-associated Acute Kidney Injury Interventions: Device: Transdermal glomerular filtration rate (TGFR) monitoring Sponsors: Second Affiliated Hospital, Zhejiang University, School of Medicine; Hangzhou Zhongmei Huadong Pharmaceutical Co., Ltd. Not...