800
Participants
Start Date
January 1, 2024
Primary Completion Date
March 31, 2024
Study Completion Date
April 15, 2024
Contrast-enhanced Ultrasound
Integrated scoring method and up-and-down scoring method
Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
OTHER