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Observational Study for Deep Vein Thrombosis Assessment

This study is looking at how two devices, the Mayo Dopplex ABIlity and Intermittent Pneumatic Compression (IPC), measure changes in blood flow in your veins. These devices use an air-filled cuff to assess blood flow, which may help in understanding deep venous obstruction (a blockage in a deep vein). The study aims to see what these devices measure at the start of the study. You might be able to join if you are 18 or older and have had a recent ultrasound for deep vein thrombosis (DVT), a blood clot in a deep vein, in your leg. The study plans to include 500 participants.

Study design
This is an observational study planning to enroll 500 participants. It is not specified if there are different groups or if it's blinded.
What's involved
You would have your venous hemodynamic pressure measured at baseline using the Mayo Dopplex ABIlity device and the Intermittent Pneumatic Compression (IPC) device.
Compensation
Not stated in the trial record.
Follow-up
Measurements are taken at baseline only, so there is no specified follow-up period after the initial assessment.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06519435

Non-invasive Venous Air Plethysmography Assessment of Venous Hemodynamics in Patients Suspected Deep Venous Obstruction Used in Conjunction With Intermittent Pneumatic Compression.

Recruiting
Not specifiedAges 18+Observational
Mayo Clinic
~500 participants
Updated 2025-10-28 on ClinicalTrials.gov
What's tested:Mayo Dopplex ABIlityIntermittent Pneumatic Compression (IPC)

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Mayo Dopplex ABllity device Venous hemodynamic pressure
Measured over Baseline
+1 more outcome measured

Conditions

Deep Vein Thrombosis

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NCT06519435

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Mayo Clinic

    Rochester, Minnesotastudy coordinator listed

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

Study leadership

  • Damon Houghton, MD · PRINCIPAL_INVESTIGATOR · Mayo Clinic

Who to contact

David Liedl
[email protected]
507-266-6717
Email the study team

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Eligibility criteria

Inclusion

Venous ultrasound study to evaluate for lower extremity DVT unilateral and/or bilateral within previous 72 hours.

Exclusion

Patients with inaccessible target limb (ultrasound limb) due to bandages (wound, burn, lesion, etc) or cast.
Patients with leg trauma, fracture, above or below knee amputation, or other condition in which compressing on the calf is medically inappropriate or not possible.
Patients unable to provide informed written consent.

What this trial measures

  • Mayo Dopplex ABllity device Venous hemodynamic pressureBaseline

    Venous hemodynamic pressure to be measured from both the recumbent and sitting positions using the Mayo Dopplex ABllity device. Measured as mmHg.

  • Intermittent Pneumatic Compression device Venous hemodynamic pressureBaseline

    Venous hemodynamic pressure to be measured from both the recumbent and sitting positions using the IPC device. Measured as mmHg.