

![]() |
Normal fetal urine production rate estimated with 3-dimensional ultrasonography using the rotational technique (virtual organ computer-aided analysis) |
|
Authors | ||
Published in | American journal of obstetrics and gynecology. 2008, vol. 199, no. 1, p. 57.e1-5 | |
Abstract | OBJECTIVE: The aim of this study was to assess hourly fetal urine production rates (HFUPRs) and establish a nomogram by measuring bladder volumes with 3-dimensional ultrasound. STUDY DESIGN: Fetal urine bladder volume was estimated in 167 normal singleton pregnancies with neither oligohydramnios nor polyhydramnios, at a gestational age of 20-41 weeks. HFUPR was estimated in a regression analysis that included at least 3 volumes calculated during the filling phase with the Virtual Organ Computed-aided AnaLysis (VOCAL) technique. We estimated interoperator variability for HFUPR less than 10 mL/h and HFUPR greater than 10 mL/h. RESULTS: Fetal urine production rates at 25, 30, 35, and 40 weeks were 7.5, 22.2, 56.1, and 125.1 mL/h, respectively. The intraclass correlation coefficients for interoperator variability were 99.2% for HFUPR less than 10 mL/hour and 97.1% for HFUPR greater than 10 mL/h. CONCLUSION: Prenatal measurement of HFUPR with 3-dimensional VOCAL ultrasound is reproducible and may help to determine the cause and prognosis of amniotic fluid volume abnormalities. | |
Keywords | Adult — Amniotic Fluid/ultrasonography — Female — Fetus/physiology — Gestational Age — Humans — Image Processing, Computer-Assisted/methods — Imaging, Three-Dimensional — Observer Variation — Oligohydramnios/ultrasonography — Polyhydramnios/ultrasonography — Pregnancy — Reproducibility of Results — Ultrasonography, Prenatal/methods — Urine | |
Identifiers | PMID: 18295175 | |
Full text | ||
Structures | ||
Citation (ISO format) | TOUBOUL, Cyril et al. Normal fetal urine production rate estimated with 3-dimensional ultrasonography using the rotational technique (virtual organ computer-aided analysis). In: American journal of obstetrics and gynecology, 2008, vol. 199, n° 1, p. 57.e1-5. doi: 10.1016/j.ajog.2007.12.012 https://archive-ouverte.unige.ch/unige:1835 |