P17.09: Assessment and validation of a novel three‐dimensional power Doppler VOCAL sonobiopsy technique

Pellaers, Dominique; Schiffer, V.; Gruiskens, G.; Kuijk, Sander M. J. van; Ghossein, Chahinda; Spaanderman, M.E.A.; Nasiry, S. Al

doi:10.1002/uog.18173

Cited by 2 publications

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“…It was relatively independent with high sensitivity and reproducibility, which can detect small and slow blood vessels in three-dimensional space of the CL (Martins, 2010). With the three-dimensional power Doppler ultrasound, ultrasound parameters VI, VFI, and FI can be measured and statistically analyzed in the histogram facility of the Vocal software so as to reduce the error caused by subjective judgment (Pellaers et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

The Role of Blood Flow in Corpus Luteum Measured by Transvaginal Two-Dimensional and Three-Dimensional Ultrasound in the Prediction of Early Intrauterine Pregnancy Outcomes

Han

et al. 2019

Front. Pharmacol.

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Objective: The purpose of this study was to explore the application of transvaginal two-dimensional and three-dimensional power Doppler ultrasound in pregnancy corpus luteum to predict the final outcome of early intrauterine pregnancy. Methods: This is a prospective observational cohort study. Six hundred early intrauterine pregnant women in Shanghai Changning Maternity and Infant Health Hospital were selected as the research objects from January 2015 to December 2015. According to the follow-up of 12 weeks, these pregnant women were divided into the normal pregnancy group (group A, n = 512) and the terminational pregnancy group (group B, n = 88). They all underwent both transvaginal two-dimensional ultrasound and three-dimensional power Doppler ultrasound to obtain relevant parameters of corpus luteum, namely, the average diameter of the corpus luteum (D), resistance index (RI), pulsatility index (PI), corpus luteum volume (V), vascularization index (VI), blood flow index (FI), and vascularized blood flow index (VFI). Among them, V, VI, FI, and VFI were calculated with the virtual organ computer-aided analysis method. Receiver operator characteristic (ROC) curves were drawn. The corresponding diagnostic cut-off, sensitivity, and specificity were calculated and compared. Results: Compared with group A, the D, V, VI, FI, and VFI of corpus luteum in group B were statistically significant lower while RI and PI were statistically significant higher ( P < 0.05). The diagnostic cut-off values in the prediction of early intrauterine pregnancy outcomes were D: 14.48, RI: 0.56, PI: 0.81, V: 3.89, VI: 21.48, FI: 38.99, and VFI: 10.21 respectively, and the sensitivity and specificity were D (99.2%, 67.0%), RI (98.9%, 65.0%), PI (78.4%, 89.1%), V (95.1%, 78.4%), VI (74.%, 90.9%), FI (91.8%, 90.9%), and VFI (93.9%, 87.5%) respectively. The area under the ROC curve of the combined index (RI + FI) was 0.963, which was not significantly higher compared with any single index, and both the sensitivity and specificity were 94.3%. Conclusion: Both transvaginal two-dimensional and three-dimensional ultrasonography are of high diagnostic value in predicting the early intrauterine pregnancy outcomes.

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Section: Discussionmentioning

confidence: 99%

The Role of Blood Flow in Corpus Luteum Measured by Transvaginal Two-Dimensional and Three-Dimensional Ultrasound in the Prediction of Early Intrauterine Pregnancy Outcomes

Han

et al. 2019

Front. Pharmacol.

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Novel Ultrasound Technologies in Assessing the State of the Mother–placenta–fetus System

Zalesskaia,

Zubareva,

Dobrokhotova

et al. 2023

Acta med. Eurasica

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The leading process in early pregnancy is forming the mother–placenta–fetus system. The central link of the mother–placenta–fetus system is the placenta. The structural features of the placenta reflect complex relationship between the mother's body and the fetus. Disorder in forming and functioning of the placenta underlies the development of complications such as early termination of pregnancy, placental insufficiency, fetal growth retardation syndrome, preeclampsia, premature birth. In this regard, an integrated approach in studying the hemodynamic system of mother–placenta–fetus is of particular importance. Ultrasound examination remains one of the most promising diagnostic methods. The aim of the study is to increase the effectiveness of diagnosis and prediction of gestational complications associated with violation of hemodynamic parameters in the mother–placenta–fetus system. Materials and methods. The study included 40 patients between the 30th and 32nd weeks of pregnancy with a singleton spontaneous pregnancy: 20 patients with normal course of pregnancy and 20 patients with a diagnosis of placental insufficiency. Ultrasound examination included standard echography in B-mode, color Doppler mapping and the use of modern techniques – three-dimensional imaging technology and innovative techniques of high-precision microvascular imaging SMI (Superb Micro-Vascular Imaging). Results and discussion. In patients with normal pregnancy, a variant of a three-dimensional model of the vascular network with a complex massive vascular network prevailed, whereas in the group with placental insufficiency, a three-dimensional vascular model looked simple: several intertwined vessels. Visual assessment of the placental vascular tree using SMI technology revealed the absence of a clear vascular pattern in the area of interest in patients with placental insufficiency, whereas active placental blood flow was determined in patients with normal pregnancy. Conclusions. The use of modern ultrasound technologies enables to obtain information about the state of placental blood flow, which gives the opportunity to diagnose the development of placental insufficiency in a timely manner.

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P17.09: Assessment and validation of a novel three‐dimensional power Doppler VOCAL sonobiopsy technique

Cited by 2 publications

References 0 publications

The Role of Blood Flow in Corpus Luteum Measured by Transvaginal Two-Dimensional and Three-Dimensional Ultrasound in the Prediction of Early Intrauterine Pregnancy Outcomes

The Role of Blood Flow in Corpus Luteum Measured by Transvaginal Two-Dimensional and Three-Dimensional Ultrasound in the Prediction of Early Intrauterine Pregnancy Outcomes

Novel Ultrasound Technologies in Assessing the State of the Mother–placenta–fetus System

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