Ultrasound Assessment of Fetal Growth Parameters
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: restricted fetal growth.
- Who it may be relevant to
- Registry conditions: Fetal Clavicle Length, Fetal Scapular Width, Fetal Sternal Length, Fetal Scapular Length. Basic parameters: 18 years — 45 years · Female.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Research on the Application of Ultrasonography in Fetal Growth Parameters
Overview
The goal of this observational study is to establish reference value ranges for normal fetal biometric parameters at different gestational weeks for the domestic population, and evaluate their clinical application to predict perinatal outcomes. The main question it aims to answer is: What is the relationship between fetal parameter measurements (such as clavicle length, scapular width, scapular length, sternum length, and cranial structure measurements) and gestational age as well as other growth parameters? And how can these parameters be used in clinical applications such as predicting perinatal outcomes? Researchers will observe the relationship between the measurement values of fetal clavicle length, scapular width, scapular length, sternum length, and cranial structure and gestational age as well as other growth parameters, and ultimately follow up on the perinatal outcomes of mother and fetus.
Interventions
- Other restricted fetal growth
The fetus is of abnormal size and has not reached its genetic growth potential in utero. Fetal birth weight is less than two standard deviations from the average weight for the same gestational age, or less than the 10th percentile of normal weight for the same age.
Primary outcome measures
- fetal clavicle length [Time frame: gestational weeks 12 to 40]
- scapular width and scapular length [Time frame: gestational weeks 12 to 40]
- sternal length [Time frame: gestational weeks 12 to 40]
Eligibility criteria
Inclusion criteria
Singleton pregnancy; The date of the last menstrual period was determined for each pregnant woman, and a history of regular menstrual cycles was confirmed; Pregnant women had no maternal diseases that could affect fetal growth and development, such as diabetes, pregnancy-induced hypertension, or chronic infections; Fetuses had no chromosomal or structural abnormalities; Gestational age (calculated based on the last menstrual period) was within 7 days of the ultrasound biometric measurements; Good image quality.
Exclusion criteria
Multiple gestation, fetal demise, or stillbirth; Pregnancy complications or comorbidities affecting fetal growth; Clinically diagnosed fetal growth restriction (FGR); Confirmed pathogenic infections (serology-positive), including TORCH, HIV, RPR, or other infections; Prenatal ultrasound indicating fetal hydrops, structural anomalies, or chromosomal abnormalities; History of substance abuse (e.g., drugs, smoking, alcohol) or medication use in early pregnancy; Discrepancy between clinical gestational age and ultrasound-estimated gestational age; Lack of follow-up information.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Other
Study locations
China · 1 center
- EPIQ 7 (Philips Healthcare, Bothell, WA) 和 Voluson E10 (GE Healthcare, Milwaukee, WI) — Xiamen
Identifiers
NCT: NCT07018362 · FirstAHXiamenUsym