(ARFI) Shear Velocity Imaging of the Kidneys in Pediatric Patients

This study is currently recruiting participants.
Verified October 2013 by University of Michigan
Information provided by (Responsible Party):
Jonathan R. Dillman M.D., University of Michigan
ClinicalTrials.gov Identifier:
First received: January 29, 2013
Last updated: October 24, 2013
Last verified: October 2013

Urine reflux (urine backing up into the kidneys) is common in the pediatric population and may be complicated by renal abnormalities, such as infection and scarring. Currently, urine reflux is detected using either voiding cystourethrogram or other procedures. A new technique called ultrasound-based Acoustic Radiation Force Impulse (ARFI), or shear wave velocity imaging SVI) is performed using standard approved ultrasound machines and transducers bu the sound waves/impulses are produced in a different pattern. We hope to evaluate the usefulness of ARFI in diagnosing possible kidney damage caused from urine reflux (urine backing up into the kidneys).

Condition Intervention
Urine Reflux
Kidney Damage
Procedure: ARFI SVI Ultrasound Imaging

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Ultrasound Based Acoustic Radiation Force Impulse (ARFI)Shear Wave Velocity Imaging (SVI)of the Kidneys in Pediatric Patients With Vesicoureteral Reflux

Resource links provided by NLM:

Further study details as provided by University of Michigan:

Primary Outcome Measures:
  • Ultrasound-Based Acoustic Radiation Force Impulse(ARFI)Shear Wave Velocity Imaging (SVI) [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]
    To determine if this new ultrasound based imaging will effectively measure shear wave velocity in kidneys affected by urine reflux and be useful in determining the extent of kidney damage

Estimated Enrollment: 100
Study Start Date: October 2012
Estimated Study Completion Date: January 2016
Estimated Primary Completion Date: November 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: ARFI SVI ultrasound imaging
Acoustic Radiation Force Impulse (ARFI) Shear Wave Velocity Imaging (SVI) ultrasound imaging
Procedure: ARFI SVI Ultrasound Imaging
Following a clinical renal ultrasound scan, the research scan using the ultrasound based acoustic radiation force impulse, or shear wave velocity imaging will be performed using standard approved ultrasound machines and transducers. This imaging will take approximately 5 to 10 minutes to complete.


Ages Eligible for Study:   up to 18 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. 18 years of age and younger
  2. Are scheduled to have a clinically ordered kidney ultrasound and a voiding cystourethrogram (to evaluate urine reflux) on the same day. -

Exclusion Criteria:

None to list

  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01781819

Contact: Jonathan Dillman, MD (734)232-9247
Contact: James Pool, CCRC (734)615-7391 jampool@umich.edu

United States, Michigan
University of Michigan Recruiting
Ann Arbor, Michigan, United States, 48109
Contact: Jonathan Dillman, M.D.    734-232-9247      
Contact: James Pool Jr., CCRC    734-615-7391    jampool@umich.edu   
Sponsors and Collaborators
University of Michigan
Principal Investigator: Jonathan Dillman, MD University of Michigan Hospital
  More Information

No publications provided

Responsible Party: Jonathan R. Dillman M.D., Principal Investigator, University of Michigan
ClinicalTrials.gov Identifier: NCT01781819     History of Changes
Other Study ID Numbers: HUM00063972
Study First Received: January 29, 2013
Last Updated: October 24, 2013
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Gastroesophageal Reflux
Vesico-Ureteral Reflux
Esophageal Motility Disorders
Deglutition Disorders
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases
Urinary Bladder Diseases
Urologic Diseases

ClinicalTrials.gov processed this record on April 23, 2014