US Imaging for the Assessment of LUTS

Last updated: April 8, 2025
Sponsor: University of Wisconsin, Madison
Overall Status: Active - Recruiting

Phase

N/A

Condition

Benign Prostatic Hyperplasia (Enlarged Prostate)

Enuresis

Interstitial Cystitis

Treatment

MRI-UDS; US-UDS; MCUD

Clinical Study ID

NCT06323109
2023-1331
Protocol Version 12/19/24
A196200
Protocol Version 12/21/23
  • Ages 18-80
  • Male
  • Accepts Healthy Volunteers

Study Summary

The purpose of this research is to develop an ultrasound (US) based urodynamics (UDS) evaluation of voiding based on successful magnetic resonance imaging (MRI)-UDS evaluation. Both US and MRI are non-invasive imaging techniques, but US is a more cost-effective and widely available technology. 80 participants will be enrolled and will be on study for up to 2.5 hours (1.5 hour MRI and 1 hour US).

Eligibility Criteria

Inclusion

Inclusion Criteria: Patients with BPH/LUTS

  • Age 18-80 years old

  • Diagnosed with BPH/LUTS with or without obstruction

Exclusion

Exclusion Criteria:

  • Patients with contraindication to MRI and/or GBCA contrast agent. Diabetic subjectswill not receive contrast.

  • History of overt neurologic disease other than diabetic neuropathy, urinary tractinfection within the last 4 weeks or recent history of urinary retention (within thelast 4 weeks).

Inclusion Criteria: Healthy Volunteers

  • Age 18-80 years old not experiencing any symptoms consistent with LUTS

Exclusion Criteria:

  • Patients with contraindication to MRI and/or GBCA contrast agent.

  • Currently taking medications with known effects on the bladder, overt neurologicdisease other than diabetic neuropathy, urinary tract infection within the last 4weeks or urinary retention symptoms.

Study Design

Total Participants: 80
Treatment Group(s): 1
Primary Treatment: MRI-UDS; US-UDS; MCUD
Phase:
Study Start date:
November 28, 2023
Estimated Completion Date:
January 01, 2027

Study Description

The MRI - UDS technique provides voiding flow rates and bladder pressures which can be used to calculate the widely used metrics of obstruction (bladder outlet obstruction index, BOOI) and contractility (bladder contractility index, BCI). In a preliminary study, values for maximum flow (Qmax) and detrusor pressure at maximum flow (PdetQmax) were obtained from MRI-UDS for patients with BPH/LUTS. These results closely correlated with multichannel urodynamics (MCUD).

Men with BPH/LUTS and age-matched controls will undergo a comprehensive protocol of dynamic MRI, 3D ultrasound and multi-channel urodynamics (MCUD) to evaluate and validate this novel methodology.

Specific aims include:

Aim 1. Develop an ultrasound/CFD based urodynamics (US-UDS) method. A protocol combining 3D US imaging and CFD analysis will be developed. This approach will be validated both in vitro and in vivo, first in an anatomically realistic model and then in control human subjects.

Aim 2. Establish the accuracy of voiding metrics determined with ultrasound urodynamics (US-UDS). MCUD, MRI-UDS and the new US-UDS protocols will all be performed to evaluate voiding in patients with BPH/LUTS and healthy controls. Urodynamic metrics derived from ultrasound will be compared to those obtained from the reference clinical standard MCUD and MRI-UDS.

Aim 3. Develop an optical velocimetry methods that allows the non-invasive quantification of urine velocity while voiding. A setup of high speed cameras will be assembled and utilized to optically image the voiding stream in all subjects recruited for aims 1 and 2.

Connect with a study center

  • University of Wisconsin

    Madison, Wisconsin 53705
    United States

    Active - Recruiting

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