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Fetal renal volume assessment by three-dimensional ultrasonography
Y Y Hsieh1, C C Chang, C C Lee
1Department of Obstetrics and Gynecology, China Medical College Hospital, Taichung, Taiwan.
American Journal of Obstetrics and Gynecology
|February 29, 2000
Summary
Accurate fetal kidney volume measurement is now possible using a new formula derived from three-dimensional ultrasonography. This formula enables precise fetal renal volume assessment via two-dimensional ultrasonography.
Area of Science:
- Medical Imaging
- Fetal Medicine
- Nephrology
Background:
- Fetal renal volume assessment is crucial for monitoring fetal development and identifying potential abnormalities.
- Accurate measurement of fetal kidneys is essential for clinical decision-making.
Purpose of the Study:
- To measure fetal renal volume using three-dimensional ultrasonography.
- To establish an accurate constant and formula for fetal renal volume assessment with two-dimensional ultrasonography.
Main Methods:
- Inclusion of singleton fetuses between 15 and 40 weeks' gestation.
- Measurement of fetal kidney volumes using three-dimensional ultrasonography.
- Calculation of a fetal renal volume formula using three largest diameters and a derived constant.
Main Results:
- A total of 112 fetuses were analyzed.
- The established formula is: Fetal renal volume = Constant (R) x Largest anteroposterior diameter (x) x Largest transverse diameter (y) x Largest longitudinal diameter (z).
- No statistically significant differences were found between right and left kidneys for volumes, diameters, or constants.
Conclusions:
- Three-dimensional ultrasonography is a valuable tool for assessing fetal renal volume.
- The developed fetal renal volume formula allows for accurate fetal kidney volume measurements using two-dimensional ultrasonography.