US Imaging for the Assessment of LUTS

NCT ID: NCT06323109

Last Updated: 2025-12-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-11-28

Study Completion Date

2027-01-31

Brief Summary

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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).

Detailed Description

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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.

Conditions

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Lower Urinary Tract Symptoms BPH

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Healthy Controls

Age-matched healthy men with no lower urinary tract symptoms

MRI-UDS; US-UDS; MCUD

Intervention Type DEVICE

Imaging procedures will include a comprehensive protocol of dynamic MRI, 3D ultrasound and MCUD to evaluate and validate this entirely novel methodology.

Known BPH/LUTS

Adult men diagnosed with BPH/LUTS

MRI-UDS; US-UDS; MCUD

Intervention Type DEVICE

Imaging procedures will include a comprehensive protocol of dynamic MRI, 3D ultrasound and MCUD to evaluate and validate this entirely novel methodology.

Interventions

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MRI-UDS; US-UDS; MCUD

Imaging procedures will include a comprehensive protocol of dynamic MRI, 3D ultrasound and MCUD to evaluate and validate this entirely novel methodology.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Age 18-80 years old
* Diagnosed with BPH/LUTS with or without obstruction


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

Exclusion Criteria

* Patients with contraindication to MRI and/or GBCA contrast agent. Diabetic subjects will not receive contrast.
* History of overt neurologic disease other than diabetic neuropathy, urinary tract infection within the last 4 weeks or recent history of urinary retention (within the last 4 weeks).


* Patients with contraindication to MRI and/or GBCA contrast agent.
* Currently taking medications with known effects on the bladder, overt neurologic disease other than diabetic neuropathy, urinary tract infection within the last 4 weeks or urinary retention symptoms.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Wisconsin Partnership Program

OTHER

Sponsor Role collaborator

University of Wisconsin, Madison

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Alejandro Roldan-Alzate, PhD

Role: PRINCIPAL_INVESTIGATOR

UW Department of Mechanical Engineering and Radiology

Locations

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University of Wisconsin

Madison, Wisconsin, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Radiology Studies

Role: CONTACT

Phone: 608-282-8349

Email: [email protected]

Suzanne Hanson, BS

Role: CONTACT

Phone: 608.262.7269

Email: [email protected]

Other Identifiers

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A196200

Identifier Type: OTHER

Identifier Source: secondary_id

Protocol Version 12/19/24

Identifier Type: OTHER

Identifier Source: secondary_id

2023-1331

Identifier Type: -

Identifier Source: org_study_id