scholarly journals OC17.01: Comparison of placental 3D power Doppler indices and volume in the first and second trimesters of pregnancy with small-for-gestational-age fetuses

2018 ◽  
Vol 52 ◽  
pp. 40-40
Author(s):  
C. Chen
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Power Doppler ◽  
3D Power Doppler ◽  
Doppler Indices

Second-Trimester Placental Volume and Vascular Indices in the Prediction of Small-for-Gestational-Age Neonates

2014 ◽  
Vol 37 (2) ◽  
pp. 123-128 ◽  
Author(s):  
Shih-Wen Fang ◽  
Chia-Yu Ou ◽  
Ching-Chang Tsai ◽  
Hung-Chun Fu ◽  
Hsin-Hsin Cheng ◽  
...  
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Power Doppler ◽  
Body Height ◽  
3D Ultrasound ◽  
Flow Index ◽  
Second Trimester ◽  
3D Power Doppler ◽  
Placental Volume

Objective: To evaluate the ability of second-trimester placental volume and vascular indices to predict small-for-gestational-age (SGA) birth weight pregnancies. Material and Methods: Women with singleton pregnancies were prospectively evaluated at 17-20 weeks of gestation. Second-trimester placental volume and vascular indices were obtained and calculated using volume organ computer-aided analysis and three-dimensional (3D) power Doppler ultrasound. Participants were followed until delivery and their medical records were reviewed, including maternal age, parity and pregestational body weight and body height, as well as the gestational age, birth weight and gender of the fetus. Results: Of the 163 women with complete follow-up, 20 gave birth to SGA and 143 to appropriate-for-gestational-age (AGA) neonates. The mean second-trimester placental volume was significantly lower in the SGA than in the AGA group (170.6 ± 49.8 vs. 213.5 ± 75.8 cm3, p = 0.015). None of the vascular indices, including the vascularization index, flow index and vascularization flow index, differed significantly between the two groups. We also found that the optimum cutoff for placental volume at a gestational age of 17-18 weeks was 189.7 cm3. Discussion: Second-trimester placental volume was positively correlated with neonatal birth weight. Second-trimester placental volume measured on 3D ultrasound may be predictive of SGA neonates.

scholarly journals Three-Dimensional Power Doppler Analysis of Cerebral Circulation in Normal and Growth-Restricted Fetuses

2009 ◽  
Vol 29 (9) ◽  
pp. 1609-1618 ◽  
Author(s):  
Jose L Bartha ◽  
Eva M Moya ◽  
Blas Hervías-Vivancos
Keyword(s):  
Doppler Ultrasound ◽  
Cerebral Circulation ◽  
Pulsatility Index ◽  
Power Doppler ◽  
Three Dimensional ◽  
Flow Index ◽  
Power Doppler Ultrasound ◽  
3D Power Doppler ◽  
Doppler Indices ◽  
Vascularization Index

The objective of the present study was to evaluate fetal cerebral circulation by using three-dimensional (3D) power Doppler ultrasound in normal and growth-restricted fetuses. A total of 100 normal grown fetuses were compared with other 25 with growth restriction (FGR). Three-dimensional power Doppler ultrasound was used to assess fetal cerebral 3D vascular indices: vascularization index, flow index (FI), and vascularization flow index (VFI). Both FI and VFI correlated positively with gestational age. On average, all the 3D vascular indices were increased in fetuses with FGR. The proportion of fetuses detected as having hemodynamic redistribution was higher when using 3D power Doppler indices than by means of the middle cerebral artery pulsatility index (52% versus 20%, P = 0.002). In conclusion, two of the three indices increased during gestation. All the fetal cerebral 3D vascular indices are increased in fetuses with FGR. In these fetuses, there were more cases suggesting hemodynamic redistribution than expected by conventional Doppler studies.

Third trimester uterine artery Doppler indices as predictors of preeclampsia and neonatal small for gestational age

2019 ◽  
Vol 33 (20) ◽  
pp. 3484-3489
Author(s):  
Sarah G. Običan ◽  
Linda Odibo ◽  
Methodius G. Tuuli ◽  
Alejandro Rodriguez ◽  
Anthony O. Odibo
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Uterine Artery ◽  
Third Trimester ◽  
Uterine Artery Doppler ◽  
Doppler Indices

Predicting small for gestational age in the first trimester of pregnancy using maternal ophthalmic artery Doppler indices

2015 ◽  
Vol 29 (7) ◽  
pp. 1190-1194 ◽  
Author(s):  
Júlio Augusto Gurgel Alves ◽  
Sammya Bezerra Maia e Holanda Moura ◽  
Edward Araujo Júnior ◽  
Gabriele Tonni ◽  
Wellington P. Martins ◽  
...  
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Ophthalmic Artery ◽  
First Trimester ◽  
First Trimester Of Pregnancy ◽  
Doppler Indices

scholarly journals Evaluation and correlation of placental vasculature by three-dimensional power Doppler ultrasonography with umbilical Doppler in normal and IUGR pregnancies

2018 ◽  
Vol 7 (9) ◽  
pp. 3818
Author(s):  
Sumesh Choudhary ◽  
Vineet Mishra ◽  
Rohina Aggarwal ◽  
Kavita Mistry
Keyword(s):  
Gestational Age ◽  
Pulsatility Index ◽  
Doppler Ultrasonography ◽  
Power Doppler ◽  
Three Dimensional ◽  
Flow Index ◽  
P Value ◽  
Power Doppler Ultrasonography ◽  
3D Power Doppler ◽  
Placental Volume

Background: In recent years there have been significant developments in the use of 3D Power Doppler (3DPD) imaging and quantitative 3DPD histogram analysis to estimate both placental volume and intraplacental vasculature. This study is to evaluate the distribution and variation of placental vascular indices according to gestational age and placental volume and position. Co relate the umbilical Doppler indices with placental vascular indices.Methods: From September 2016 to October 2017, three-dimensional (3D)-power Doppler ultrasound was performed in 200 singalton pregnancies from 20 to 40 weeks of gestation. Using the same pre-established settings for all patients, power Doppler was applied to the placenta and placental volume was obtained by the rotational technique (VOCAL). The 3D-power histogram was used to determine the placental vascular indices: vascularization index (VI), flow index (FI) and vascularization-flow index (VFI). Umbilical Doppler was measured on the free loop of umbilical cord. The placental vascular indices were then plotted against gestational age placental volume, position and umbilical Doppler SD ratio, PI and RI. These values were evaluated in IUGR fetus.Results: Analysis of the results showed that the placental vascular indices estimated by 3D-power Doppler ultrasonography presented constant distribution throughout gestation despite the significant increase in placental volume. Placental position at fundal region shows higher value of VI, FI, and VFI. Placental position with relation to VI, FI, and VFI shows statistically significant with p value <0.01. Placental vascular indices VI, FI and VFI when corelated with systolic/ diastolic ratio, pulsatility index and resistive resistance index of umbilical artery shows poor negative correlation, only VI and FI shows statistically significant with SD ratio as p value is <0.01and <0.04. VFI did not show statistically significant as p value is 0.10(NS). With pulsatility index p value is statistically significant is less than<0.01 with vascular indices. Resistive index p value is statistically significant is less than <0.01 for VI and VFI but not significant with FI as p value is 0.06.Conclusions: Doppler ultrasound assists in the evaluation of placental vascularization in normal and IUGR pregnancies, may play an important role in future research on fetoplacental insufficiency.

Factors Associated with Placental Vascularization Measured by 3D Power Doppler Ultrasonographic Sphere Biopsy between 11 and 14 Weeks of Gestation

2018 ◽  
Vol 35 (10) ◽  
pp. 964-971 ◽  
Author(s):  
Amelie Boutin ◽  
Regina Dembickaja ◽  
Mercedes Campanero ◽  
Kypros Nicolaides ◽  
Suzanne Demers
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Gestational Age ◽  
Maternal Age ◽  
Power Doppler ◽  
First Trimester ◽  
Flow Index ◽  
Crown Rump Length ◽  
Nulliparous Women ◽  
3D Power Doppler

Objective Preeclampsia is associated with placental vascularization disorders. Ultrasonographic sphere biopsy (USSB) of the placenta can estimate the vascularization of the placenta and potentially the risk of preeclampsia. We aimed to explore the factors related to placental vascularization measured with USSB in the first trimester. Study Design A prospective cohort was conducted in women recruited at 11 to 14 weeks. Three-dimensional acquisition of the placenta with power Doppler was undertaken along with crown-rump length (CRL). Using USSB of the full placental thickness at its center, vascularization index, flow index, and vascular flow index were measured. Pearson's correlation coefficients and multivariate linear regression were used to correlate the vascularization indices with CRL and maternal characteristics. Results A total of 5,612 women were recruited at a mean gestational age of 12.8 ± 0.6 weeks. We observed that vascularization indices increase with CRL. After adjustment, we observed that maternal age, ethnicity other than Caucasian, and body mass index were associated with lower vascularization indices, while diabetes, smoking, and assisted reproduction technology were not. We observed that parous women without history of preeclampsia had greater vascularization indices compared with nulliparous women. Conclusion Placental vascularization indices assessed by USSB fluctuate with gestational age, ethnicity, maternal age, body mass index, and previous pregnancy history.

scholarly journals Longitudinal changes in uterine, umbilical and fetal cerebral Doppler indices in late-onset small-for-gestational age fetuses

2010 ◽  
Vol 37 (2) ◽  
pp. 191-195 ◽  
Author(s):  
D. Oros ◽  
F. Figueras ◽  
R. Cruz-Martinez ◽  
E. Meler ◽  
M. Munmany ◽  
...  
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Late Onset ◽  
Longitudinal Changes ◽  
Doppler Indices
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