Characterization of Fetal Lung With Quantitative Ultrasound
University of Wisconsin, Madison
16 participants
Dec 17, 2024
OBSERVATIONAL
Conditions
Summary
The purpose of the study is to show if it's possible to use a special kind of ultrasound called backscatter quantitative ultrasound (bQUS) to check on a baby's lungs when the mother is 36 weeks pregnant. 16 participants will be on study for a single 30 minute ultrasound between 32 and 36 weeks of pregnancy.
Eligibility
Inclusion Criteria2
- 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 determined by the date of the last menses, and confirmed by measurement of the crown-rump-length on transabdominal ultrasound.
Exclusion Criteria6
- Subjects unable to consent
- Active Labor
- Fetal malformations of the lungs
- Prescription of corticosteroids prior to ultrasound evaluation
- Pre-gestation or gestational diabetes mellitus
- Low English proficiency, needing an interpreter
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Interventions
The intervention consists of a regular abdominal ultrasound scan for fetal evaluation. The difference with a regular scan is that the scanner used to image the fetus provides access to raw/unprocessed ultrasound echo data that can be extracted from the scanner and processed offline (after acquisition) to extract compute backscatter quantitative ultrasound (bQUS) features. Thus, data acquisition does not represent a significant departure from conventional fetal imaging protocols. Other than the time needed to acquire the images, the participant will not perceive any difference from a regular fetal ultrasound scan.
Locations(1)
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NCT06722365