Bladder ARFI (Acoustic Radiation Force Impulse) Study

This study is currently recruiting participants. (see Contacts and Locations)
Verified February 2016 by University of Michigan
Information provided by (Responsible Party):
Jonathan R. Dillman M.D., University of Michigan Identifier:
First received: January 30, 2013
Last updated: February 29, 2016
Last verified: February 2016
Urinary bladder fibrosis is relatively uncommon in children. Traditionally, the presence of urinary bladder fibrosis has been confirmed directly with bladder biopsy or using urodynamic testing. We're will use ARFI (acoustic radiation force impulse)-derived shear wave velocities to hopefully identify the presence of urinary bladder wall fibrosis. We hypothesize that shear wave velocities obtained within the bladder wall will increase with increasing evidence of fibrosis.

Condition Intervention
Bladder Fibrosis
Device: ARFI-Derived Shear Wave Velocities

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Evaluation of Pediatric Urinary Bladder Wall Thickening and Fibrosis Using Acoustic Radiation Force Impulse (ARFI)-Derived Shear Wave Velocities

Further study details as provided by University of Michigan:

Primary Outcome Measures:
  • ARFI-Derived Shear Wave Velocities [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]
    That the measurements of the bladder wall thickness determined by the ARFI-Derived Shear Wave Velocities confirm bladder wall thickening and fibrosis.

Estimated Enrollment: 30
Study Start Date: October 2012
Estimated Study Completion Date: January 2017
Estimated Primary Completion Date: June 2016 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: (ARFI)-Derived Shear Wave Velocities
This is an ultrasound-based new technique using Acoustic Radiation Force Impulse (ARFI)-Derived Shear Wave Velocity Imaging in detecting bladder wall thickness and fibrosis in the urinary bladder of pediatric patients.
Device: ARFI-Derived Shear Wave Velocities
An ultrasound based scan using acoustic radiation force impulse-derived shear wave velocities to obtain images of the urinary bladder. The research ultrasound scan will take approximately 10 to 15 minutes to complete.


Ages Eligible for Study:   up to 18 Years   (Child, Adult)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. 18 years of age or younger
  2. Your physician has ordered urodynamic testing -

Exclusion Criteria:

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01781832

Contact: Jonathan Dillman, M.D. 734-232-9247
Contact: James Pool, Jr., CCRC 734-615-7391

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

Responsible Party: Jonathan R. Dillman M.D., Principal Investigator, University of Michigan Identifier: NCT01781832     History of Changes
Other Study ID Numbers: HUM00064416 
Study First Received: January 30, 2013
Last Updated: February 29, 2016
Health Authority: United States: Food and Drug Administration
United States: Institutional Review Board

Additional relevant MeSH terms:
Pathologic Processes processed this record on August 23, 2016