3D ultrasonography to evaluate fetal urinary production rates in twin gestation: construction of a normal value curve

dc.creatorMocarzel, Carolina Carvalho
dc.creatorSá, Renato Augusto Moreira de
dc.creatorVelarde, Luis Guillermo Coca
dc.creatorPeixoto-Filho, Fernando Maia
dc.creatorVille, Yves
dc.date2014-11-14T10:54:05Z
dc.date2014-11-14T10:54:05Z
dc.date2013
dc.date.accessioned2023-09-26T20:34:08Z
dc.date.available2023-09-26T20:34:08Z
dc.identifierMOCARZEL, Carolina Carvalho et al. 3D ultrasonography to evaluate fetal urinary production rates in twin gestation: construction of a normal value curve. Twin Research and Human Genetics, Bowen Hills, v. 17, n. 1, p. 45-50, 2013.
dc.identifier1832-4274
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/8850
dc.identifier10.1017/thg.2013.82
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8859702
dc.descriptionObjective: The aim of this study was to assess fetal urinary production rates (FUPR) in twin gestations using 3D ultrasonography with VOCAL R (virtual organ computer-aided analysis) and to develop a curve of normal values for the target population. Methods: A cross-sectional study was performed in 30 normal twin pregnancies with gestational ages ranging from 20 to 34 weeks. FUPR was measured using a threedimensional ultrasound (3D US) virtual organ computer-aided analysis (VOCAL) system. FUPR (ml/hour) was calculated during the filling phase using the equation UPR = (VFB2 - VFB1)/time. The values for UPR were plotted as a function of fetal biometry (biparietal diameter) to generate a nomogram. Results: A total of 41 normal twin fetuses with gestational ages between 20 and 34 weeks were investigated. Eleven were excluded because of inadequate bladder contour image quality and/or the observation of micturition in one or both fetuses. Linear regression analysis of FUPR as a function of biparietal diameter (BPD) shows the normal range for UPR by fetal biometry and is expressed by the following equation: Ln(UPR) = -5.0121 + 0.0548 BPD (R2 0.3386, p value <.001). There was no statistically significant difference when the UPR was stratified by chorionicity. Conclusions: The use of biometric parameters to predict fetal FUPR seems to be useful. In twin pregnancies, BPD is the variable that is most closely related to FUPR. For each 1 mm increase in BPD, there is a 5% increase in FUPR. Chorionicity did not affect FUPR.
dc.formatapplication/pdf
dc.languageeng
dc.publisherAustralian Academic Press
dc.rightsopen access
dc.subject3D Ultrasonography
dc.subjectTwin Pregnancy
dc.subjectFetal Bladder Volume Measurement
dc.subjectFetal Urine Production Rate
dc.subjectUltrassonografia
dc.subjectGravidez de Gêmeos
dc.subjectBexiga Urinária
dc.subjectUrina
dc.title3D ultrasonography to evaluate fetal urinary production rates in twin gestation: construction of a normal value curve
dc.typeArticle


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