MoDi Twin Placental Imaging Study

This study is looking at new ways to image the placenta in pregnant individuals carrying monochorionic twins (identical twins who share a placenta). Researchers are using a special ultrasound device called the Verasonics Vantage 256 to take detailed images of the placenta. This device uses ultrafast power Doppler imaging (uPDI) and quantitative ultrasound (QUS). The goal is to see if this imaging can help understand conditions like Twin-Twin Transfusion Syndrome (TTTS), which can happen when twins share a placenta and blood flow is uneven. You may be able to join if you are 18-45 years old, pregnant with monochorionic twins, and plan to deliver at Carilion Roanoke Memorial Hospital or Carilion New River Valley Medical Center. The study is currently unclear about its recruitment status and plans to enroll 10 participants.

Study design
This is an interventional study involving 10 participants. It uses a specific ultrasound device to image the placenta.
What's involved
You would undergo a single transabdominal ultrasound evaluation of the placenta using the Verasonics 256 device.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint, ultrafast power Doppler imaging, will be measured at 24 months.

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NCT07667647

MoDi Twin Placental Imaging

Not Yet Recruiting
NAAges 18–45InterventionalDevice feasibility
Carilion Clinic
~10 participants
Updated 2026-06-25 on ClinicalTrials.gov
What's tested:Verasonics Vantage 256 Ultrasound

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Ultrafast Power Doppler Imaging (uPDI) Achieved with the Verasonics Vantage 256 System
Measured over 24 months
Monochorionic Diamniotic Placenta
Monochorial Monoamniotic Placenta
Monochorionic Twins
Ultrasound Doppler
Ultrasound
Pregnancy
Twin Pregnancy, Monochorionic
Twin Twin Transfusion Syndrome
1 sites across 1 states
Virginia1
  • Megan D Whitham, MD · PRINCIPAL_INVESTIGATOR · Carilion Clinic
  • Aiguo Han, PhD · PRINCIPAL_INVESTIGATOR · Virginia Polytechnic Institute and State University

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  • Ultrafast Power Doppler Imaging (uPDI) Achieved with the Verasonics Vantage 256 System24 months

    Obtain 10 subjects' ultrafast power Doppler imaging (uPDI) with the Verasonics Vantage 256 research ultrasound machine that successfully visualize the placenta's microvasculature. The ability to appreciate the placental microvasculature will be determined \[Y/N\] by perinatologists working as investigators on the study.