Fully Automated Placental Volume Quantification From 3DUS for Prediction of Small‐for‐Gestational‐Age Infants

2021 ◽  
Author(s):  
Nadav Schwartz ◽  
Ipek Oguz ◽  
Jiancong Wang ◽  
Alison Pouch ◽  
Natalie Yushkevich ◽  
...  
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Placental Volume

563: Estimated placental volume (EPV): a novel predictor of small for gestational age birth weight (SGA)

2016 ◽  
Vol 214 (1) ◽  
pp. S303
Author(s):  
Katherine H. Campbell ◽  
France Galerneau ◽  
Harvey Kliman ◽  
Radek K. Bukowski
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Placental Volume

scholarly journals 1049: Fully automated placental volume quantification from 3DUS for prediction of small-for-gestational age infants

2019 ◽  
Vol 220 (1) ◽  
pp. S672-S673
Author(s):  
Nadav Schwartz ◽  
Ipek Oguz ◽  
Jiancong Wang ◽  
Alison Pouch ◽  
Natalie Yushkevich ◽  
...  
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Placental Volume

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 Corpus luteum number and the maternal renin-angiotensin-aldosterone system as determinants of utero-placental (vascular) development: the Rotterdam Periconceptional Cohort

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Rosalieke E. Wiegel ◽  
Maud J. H. Karsten ◽  
Igna F. Reijnders ◽  
Lenie van Rossem ◽  
Sten P. Willemsen ◽  
...  
Keyword(s):  
Corpus Luteum ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Uterine Artery ◽  
Vascular Development ◽  
First Trimester ◽  
Placental Weight ◽  
Renin Angiotensin Aldosterone System ◽  
Vascular Volume ◽  
Placental Volume

Abstract Background Pregnancies with > 1 corpus luteum (CL) display a hyperdynamic circulation and an increased risk of small-for-gestational age deliveries. Among the factors released by the CL is prorenin, the inactive precursor of renin. Since the renin-angiotensin-aldosterone system (RAAS) is involved in early hemodynamic pregnancy adaptation, we linked both CL number and first-trimester concentrations of prorenin (as an indicator of RAAS activity) and the aldosterone/renin ratio (as an indicator of angiotensin-independent aldosterone effectiveness) to non-invasive markers of utero-placental (vascular) development, measured longitudinally from the first trimester onwards. Methods A total of 201 women, who conceived naturally or after in-vitro fertilization treatment (with 0 (n = 8), 1 (n = 143), or > 1 (n = 51) CL), were selected from the Rotterdam Periconceptional Cohort. Maternal RAAS components were determined at 11 weeks gestation. Placental volume and utero-placental vascular volume were measured from transvaginal 3D ultrasound scans at 7, 9 and 11 weeks gestation, pulsatility and resistance indices of the uterine arteries were assessed by pulsed wave Doppler ultrasounds at 7, 9, 11, 13, 22 and 32 weeks gestation. At birth placental weight was obtained using standardized procedures. Results Pregnancies without a CL show lower uterine artery indices throughout gestation than 1 CL and > 1 CL pregnancies, while parameters of placental development are comparable among the CL groups. After adjustment for patient- and treatment-related factors, first-trimester prorenin concentrations are positively associated with uterine artery pulsatility and resistance indices (β 0.06, 95% CI 0.01;0.12, p = 0.04 and β 0.10, 95% CI 0.01;0.20, p = 0.04, respectively), while high prorenin concentrations are negatively associated with first-trimester utero-placental vascular volume (β -0.23, 95% CI -0.44;-0.02, p = 0.04) and placental weight (β -93.8, 95%CI -160.3;-27.4, p = 0.006). In contrast, the aldosterone/renin ratio is positively associated with first-trimester placental volume (β 0.12, 95% CI 0.01;0.24, p = 0.04). Conclusions The absence of a CL, resulting in low prorenin concentrations, associates with low uterine artery pulsatility and resistance, while high prorenin concentrations associate with a low utero-placental vascular volume and weight. These data support a scenario in which excess prorenin, by upregulating angiotensin II, increases uterine resistance, thereby preventing normal placental (vascular) development, and increasing the risk of small-for-gestational age deliveries. Simultaneously, high aldosterone concentrations, by ensuring volume expansion, exert the opposite.

P13.24: Placental volume and three-dimensional power Doppler analysis in prediction of hypertensive complications of pregnancy and small for gestational age

2014 ◽  
Vol 44 (S1) ◽  
pp. 260-261
Author(s):  
N. Gonzalez Gonzalez ◽  
E. Gonzalez Davila ◽  
M. Armas Gonzalez ◽  
E. Padron ◽  
A. Gonzalez Lorenzo ◽  
...  
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Power Doppler ◽  
Three Dimensional ◽  
Placental Volume ◽  
Doppler Analysis
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