Research article summary (published 2 Mar 2008):

Normal fetal urine production rate estimated with 3-dimensional ultrasonography using the rotational technique (virtual organ computer-aided analysis).

Full 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.

Author information

Author/s: Touboul, Cyril (C); Boulvain, Michel (M); Picone, Olivier (O); Levaillant, Jean-Marc (JM); Frydman, René (R); Senat, Marie-Victoire (MV);

Affiliation: Service de Gynécologie-Obstétrique et Médecine de la Reproduction, Hôpital Antoine Béclère, Assistance Publique-Hôpitaux de Paris, and Université Paris-Sud, Clamart, France.

Journal and publication information

Publication Type: Evaluation Studies; Journal Article

Journal: American journal of obstetrics and gynecology (Am J Obstet Gynecol), published in United States. (Language: eng)

Reference: 2008-Jul; vol 199 (issue 1) : pp 57.e1-5

Dates: Created 2008/06/30; Completed 2008/07/22;

PMID: 18295175, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Amniotic Fluid - ultrasonography Female Fetus - physiology Gestational Age Humans Image Processing, Computer-Assisted - methods Imaging, Three-Dimensional

Imaging, Three-Dimensional Observer Variation Oligohydramnios - ultrasonography Polyhydramnios - ultrasonography Pregnancy Reproducibility of Results Ultrasonography, Prenatal - methods Urine

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