Hydronephrosis ARFI Study
Pediatric upper urinary tract dilatation (hydronephrosis) is relatively common and may be either obstructive or nonobstructive. While the upper urinary tract is commonly evaluated by ultrasound, this imaging technique often fails to distinguish obstructed from nonobstructed systems. ARFI SVI is a new ultrasound technology that can be used to determine stiffness by measuring a tissue's shear wave velocity, may show alterations in parenchymal shear wave velocity in kidneys that show obstruction on DRS (Diuretic renal scintigraphy)which serves as the reference standard.
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||Evaluation of Ultrasound Acoustic Radiation Force Impulse (ARFI)Shear Wave Velocity Imaging (SVI)in the Characterization of Pediatric Hydronephrosis|
- ARFI-SVI [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]fibrosis and intratubular pressure will be evidenced by higher parenchymal shear wave velocity measurements using the ARFI-SVI technology.
|Study Start Date:||November 2012|
|Estimated Study Completion Date:||January 2016|
|Estimated Primary Completion Date:||January 2015 (Final data collection date for primary outcome measure)|
Experimental: ARFI-SVI Ultrasound
Ultrasound scan using acoustic radiation force impulse-shear wave velocity imaging in the characterization of pediatric hydronephrosis. This is a non-invasive scan that uses sound waves to create the images.
Procedure: AFRI-SVI Ultrasound
This research scan uses acoustic radiation force impulse (ARFI) shear wave velocity imaging (SVI)a new ultrasound technology in which unique sound waves create the images/pictures of the kidney beng examined/scanned. This ultrasound scan will take approximately 10 minutes to complete.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01781845
|United States, Michigan|
|University of Michigan Hospital|
|Ann Arbor, Michigan, United States, 48109|
|Principal Investigator:||Jonathan Dillman, M.D.||University of Michigan Hospital|