Actively Recruiting
Characterization of Fetal Lung With Quantitative Ultrasound
Led by University of Wisconsin, Madison · Updated on 2026-02-13
16
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating the use of a special ultrasound method called backscatter quantitative ultrasound (bQUS) to examine a baby's lungs during the third trimester of pregnancy. This study aims to show if bQUS can successfully collect useful data from fetal lung ultrasound signals. The research is conducted in two phases: a feasibility phase with 5 participants to test technical viability, followed by a hypothesis-testing phase to include a total of 16 participants if the technique is deemed viable. The study involves a single 30-minute abdominal ultrasound scan between 32 and 36 weeks of pregnancy. This scan uses a clinical ultrasound scanner that captures raw echo data of the fetal lung, which is then processed to analyze bQUS features. Aside from the specialized data collection, the ultrasound is similar to a regular fetal imaging procedure and does not involve any additional risks or discomfort. Participants will attend one study visit during which the ultrasound data will be acquired. Researchers will measure the number of participants enrolled as a sign of the feasibility of using bQUS and will quantify the variation of fetal lung microstructure features from the ultrasound data. The study is sponsored by the University of Wisconsin, Madison, and participants will be monitored only during this single visit lasting up to 30 minutes.
CONDITIONS
Brief Title
Characterization of Fetal Lung With Quantitative Ultrasound
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Pregnant females ages 18 to 45 years old with singleton pregnancy
- Live fetus
- Gestational age between 32.1 and 36.7 weeks
- Not in labor
- Scheduled for routine ultrasound growth evaluation
- Gestational age confirmed by last menstrual period and crown-rump-length measurement on ultrasound
You will not qualify if you...
- Unable to consent
- Active labor
- Fetal lung malformations
- Prescription of corticosteroids before ultrasound
- Pre-gestational or gestational diabetes mellitus
- Low English proficiency requiring an interpreter
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - Single study visit up to 30 minutes
Participants undergo a routine fetal ultrasound scan during which raw ultrasound data are collected to analyze fetal lung microstructure using backscatter quantitative ultrasound (bQUS). This data collection does not differ noticeably from a standard ultrasound scan.
1 visit (in-person)
Trial Site Locations
Total: 1 location
1
Meriter Hospital
Madison, Wisconsin, United States, 53715
Actively Recruiting
Research Team
U
UW Ob/Gyn Human Subjects Core
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
1
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