Pediatric Intravenous Contrast-Enhanced Ultrasound(CEUS) in China

The goal of this clinical trial is to evaluate the application of intravenous contrast-enhanced ultrasound examination in children with intra-abdominal diseases that require clear diagnoses. The main questions it aims to answer are: * Is intravenous contrast-enhanced ultrasound helpful for the diagnosis of intra-abdominal diseases in children? * What medical problems do participants have when participating in intravenous contrast-enhanced ultrasound examination? * How can ultrasound doctors conduct intravenous contrast-enhanced ultrasound examinations in a standardized manner? Researchers will performing intravenous contrast-enhanced ultrasound examinations on participants and collecting research subjects to establish a multicenter clinical data database. Participants will: * Perform abdominal ultrasound examination to assess the condition. * At least conduct one intravenous contrast-enhanced ultrasound examination. Based on the result of the contrast examination, decide whether to conduct another examination. * Keep a diary of their symptoms and therapeutic process in 30 days.

NCT Number	NCT07113808
Lead Sponsor	The Children's Hospital of Zhejiang University School of Medicine Collaborators: Shenzhen Children's Hospital, Children's Hospital of Chongqing Medical University, Tianjin Children's Hospital, Kunming Children's Hospital, Second Affiliated Hospital, Zhejiang University, School of Medicine, West China Hospital, Yuying Children's Hospital of Wenzhou Medical University, Xian Children's Hospital
Conditions	Abdominal Neoplasm, Abdominal Injury, Ascites
Enrollment	108 participants
Start Date	2024-09-10
Primary Completion	2026-09-30 (estimated)
Study Completion	2026-09-30 (estimated)
Updated on ClinicalTrials.gov	2025-12-08