Pelvic Vein Quantitative Flow Characterization Using 2D and 4D Flow MRI
- May-Thurner Syndrome
- Iliac Venous Compression
At a glance
- Phase
- Phase not stated
- Study type
- Interventional
- Sponsor
- Ningcheng Peter Li
- Enrolment target
- 15
- Started
- 1 April 2025
- Main results due
- 1 January 2029
- Study sites
- 1
- Registry updated
- 24 September 2026
Can you take part?
- Ages 18 years to 89 years.
- Open to any sex.
- Healthy volunteers can take part.
These are the headline rules only. Every study has a longer list, and whether you are eligible is decided by the research team at the site — never by this page.
Read the full eligibility criteria
Arm 1: Inclusion Criteria: • No self-reported history of pelvic or iliac venous disease or associated symptoms Exclusion Criteria: * History of pelvic or iliac venous disease or intervention * Contraindication to MRI examination * Prisoners * Subjects ≤ 18 years of age * Pregnant women * Adults unable to provide informed consent Arm 2: Inclusion Criteria: • Clinical symptoms or imaging findings compatible with left iliac vein compression syndrome Exclusion Criteria: * History of pelvic or iliac venous intervention * Contraindication to MRI examination * Prisoners * Subjects ≤ 18 years of age * Pregnant women * Adults unable to provide informed consent Arm 3: Inclusion Criteria: • History of left iliac vein stent placement Exclusion Criteria: * Contraindication to MRI examination * Prisoners * Subjects ≤ 18 years of age * Pregnant women * Adults unable to provide informed consent
What this study is about
In the sponsor’s own words, from the registry.
The purpose of the study is to quantitatively characterize the flow in the pelvic venous structures using 2D and 4D flow MRI with the objective of establishing physiologic and pathologic parameters for downstream computational fluid dynamics analysis.
Arm 1: To establish the baseline flow characteristics of the iliac veins in patients with no imaging evidence of iliac venous disease.
Arm 2: To assess the flow characteristics of the iliac veins in patients with left iliac vein compression syndrome (a.k.a. May-Thurner syndrome).
Arm 3: To assess the flow characteristics of the iliac veins in patients status post iliac stent placement.
Study sites(1)
University of Massachusetts
Worcester, Massachusetts, United States
Recruiting
Showing 1 of 1 sites. 1 of the 1 site on this study is recruiting right now — a site can stop enrolling while the study as a whole is still open.
Source: ClinicalTrials.gov record NCT06888024. Trialion does not run this study, is not paid to refer anyone to it, and cannot enrol you. Eligibility is always decided by the research team at the site.
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