Quantitative assessment of placental vasculature and placental volume in normal pregnancies with the use of 3D Power Doppler

Pomorski, Michał; Zimmer, Mariusz; Fuchs, Tomasz; Florjański, J; Pomorska, M; Tomiałowicz, M; Milnerowicz-Nabzdyk, Ewa

doi:10.1016/j.advms.2013.06.002

Cited by 16 publications

(12 citation statements)

References 15 publications

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“…In our study, there was no correlation between depth and assessed placental parameters. This finding is in agreement with findings previously described by other authors 7 , 11 , 12 , 35 .…”

Section: Discussionsupporting

confidence: 94%

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Reduced placental volume and flow in severe growth restricted fetuses

Abulé¹,

Bernardes²,

Doro³

et al. 2016

Clinics

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OBJECTIVES:To evaluate placental volume and vascular indices in pregnancies with severe fetal growth restriction and determine their correlations to normal reference ranges and Doppler velocimetry results of uterine and umbilical arteries.METHODS:Twenty-seven fetuses with estimated weights below the 3rd percentile for gestational age were evaluated. Placental volume and vascular indices, including vascularization, flow, and vascularization flow indices, were measured by three-dimensional ultrasound using a rotational technique and compared to a previously described nomogram. The observed-to-expected placental volume ratio for gestational age and observed-to-expected placental volume ratio for fetal weight were calculated. Placental parameters correlated with the Doppler velocimetry results of uterine and umbilical arteries.RESULTS:The mean uterine artery pulsatility index was negatively correlated with the observed-to-expected placental volume ratio for gestational age, vascularization index and vascularization flow index. The observed-to-expected placental volume ratio for gestational age and observed-to-expected placental volume ratio for fetal weight and vascularization index were significantly lower in the group with a bilateral protodiastolic notch. No placental parameter correlated with the umbilical artery pulsatility index.CONCLUSIONS:Pregnancies complicated by severe fetal growth restriction are associated with reduced placental volume and vascularization. These findings are related to changes in uterine artery Doppler velocimetry. Future studies on managing severe fetal growth restriction should focus on combined results of placental three-dimensional ultrasound and Doppler studies of uterine arteries.

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“…In our study, there was no correlation between depth and assessed placental parameters. This finding is in agreement with findings previously described by other authors 7 , 11 , 12 , 35 .…”

Section: Discussionsupporting

confidence: 94%

“…In our study, we did not evaluate intra- and inter-observer variabilities. However, previous studies using the same technique and machine settings have demonstrated good repeatability when measuring placental volumes and vascularization by 3DUS 6 , 7 , 14 , 35 .…”

Section: Discussionmentioning

confidence: 95%

Reduced placental volume and flow in severe growth restricted fetuses

Abulé¹,

Bernardes²,

Doro³

et al. 2016

Clinics

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“…When the data were normalized, I found a significant discriminant ability only in the studies performed predominantly at the third trimester. In these studies, the pulse repetition frequency was 0.6 or 0.9 kHz. The wall motion filter was ‘mild’ or low .…”

Section: Discussionmentioning

confidence: 99%

“…In these studies, the pulse repetition frequency was 0.6 or 0.9 kHz. The wall motion filter was ‘mild’ or low . VFI and FI were found to be the indices with the best DR.…”

Section: Discussionmentioning

confidence: 99%

Placental vascular indices (VI, FI and VFI) in intrauterine growth retardation (IUGR). A pooled analysis of the literature

Farina

2015

Prenat Diagn

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“…In recent years, a combined method involving three-dimensional (3D) imaging associated with power Doppler ultrasonography was employed to evaluate placental volume and vascularization (Araujo Júnior et al 2011; Campbell 2007; de Paula et al 2009; Hafner et al 2010; Odibo et al 2011; Pairleitner et al 1999; Pomorski et al 2014; Zalud and Shaha 2008). Using 3D power Doppler (3DPD), it is possible to estimate placental volume, flow, and vascularization, and this estimation is related to the real volume, flow, and vascularization observed in the organ evaluated (Morel et al 2010; Pairleitner et al 1999; Raine-Fenning et al 2008a).…”

Section: Introductionmentioning

confidence: 99%

Short-Term Exposure to Urban Air Pollution and Influences on Placental Vascularization Indexes

Hettfleisch¹,

Bernardes²,

Carvalho³

et al. 2017

Environ Health Perspect

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Background:It has been widely demonstrated that air pollution can affect human health and that certain pollutant gases lead to adverse obstetric outcomes, such as preeclampsia and fetal growth restriction.Objectives:We evaluated the influence of individual maternal exposure to air pollution on placental volume and vascularization evaluated in the first trimester of pregnancy.Methods:This was a cross-sectional study on low-risk pregnant women living in São Paulo, Brazil. The women carried passive personal NO2 and O3 monitors in the week preceding evaluation. We employed the virtual organ computer-aided analysis (VOCAL) technique using three-dimensional power Doppler ultrasound to evaluate placental volume and placental vascular indexes [vascularization index (VI), flow index (FI), and vascularization flow index (VFI)]. We analyzed the influence of pollutant levels on log-transformed placental vascularization and volume using multiple regression models.Results:We evaluated 229 patients. Increased NO2 levels had a significant negative association with log of VI (p = 0.020 and beta = –0.153) and VFI (p = 0.024 and beta = –0.151). NO2 and O3 had no influence on the log of placental volume or FI.Conclusions:NO2, an estimator of primary air pollutants, was significantly associated with diminished VI and VFI in the first trimester of pregnancy.Citation:Hettfleisch K, Bernardes LS, Carvalho MA, Pastro LD, Vieira SE, Saldiva SR, Saldiva P, Francisco RP. 2017. Short-term exposure to urban air pollution and influences on placental vascularization indexes. Environ Health Perspect 125:753–759; http://dx.doi.org/10.1289/EHP300

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Quantitative assessment of placental vasculature and placental volume in normal pregnancies with the use of 3D Power Doppler

Cited by 16 publications

References 15 publications

Reduced placental volume and flow in severe growth restricted fetuses

Reduced placental volume and flow in severe growth restricted fetuses

Placental vascular indices (VI, FI and VFI) in intrauterine growth retardation (IUGR). A pooled analysis of the literature

Short-Term Exposure to Urban Air Pollution and Influences on Placental Vascularization Indexes

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