Geneva, April 20 -- International Clinical Trials Registry received information related to the study (ChiCTR2600122071) titled 'Application Value of Color Doppler Ultrasound in the Diagnosis of Retroperitoneal Fibrosis' on April 8.

Study Type: Diagnostic test

Study Design: Diagnostic test for accuracy

Primary Sponsor: Peking University First Hospital

Condition: Retroperitoneal fibrosis, accompanied by renal hydronephrosis, ureteral dilatation, and related lesions with renal vascular involvement

Intervention: Gold Standard:Taking CT or MRI (plain scan + enhanced scan) diagnosis as the gold standard. Index test:Color Doppler Ultrasound Diagnostic System (Philips EPIQ5, Canon APLIO500 2-5 MHz probe) method: color Doppler ultrasound w...