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Nomogram of maxillary bone length in normal pregnancies
Israel Goldstein1, Ari Reiss, Bat-Sheva Rajamim
1Department of Obstetrics and Gynecology, Rambam Medical Center, PO Box 9602, Haifa 31096, Israel. i_goldstein@rambam.health.gov.il
Summary
This study establishes normal fetal maxillary bone growth using ultrasound, providing crucial data for prenatal diagnosis of growth abnormalities. These findings offer normative standards for assessing fetal development.
Area of Science:
- Fetal Medicine
- Medical Imaging
- Human Anatomy
Background:
- The fetal maxillary bone's growth patterns are not well-established.
- Accurate normative data is needed for assessing fetal development and diagnosing potential abnormalities.
Purpose of the Study:
- To define the normal ultrasonographic growth of the fetal maxillary bone throughout pregnancy.
- To establish normative data for assessing deviations in fetal maxillary bone growth.
Main Methods:
- A prospective cross-sectional study involving 327 fetuses (13-40 weeks gestation).
- Routine biometric measurements and fetal organ scans were performed.
- The fetal maxillary bone was identified and measured in a profile view.
Main Results:
- A linear growth function was observed for the maxillary bone with gestational age (GA).
- Significant positive correlations were found between maxillary bone length and GA, biparietal diameter (BPD), head circumference (HC), femoral bone length (FBL), and abdominal circumference (AC).
Conclusions:
- Normative data for fetal maxillary bone ultrasonographic measurements were established.
- These data can aid in the prenatal diagnosis of abnormal maxillary bone length.