scholarly journals OP14.09: First trimester 3-dimensional power Doppler of the uteroplacental space: a potential screening method for severe preeclampsia

2009 ◽  
Vol 34 (S1) ◽  
pp. 106-106
Author(s):  
J. Gebb ◽  
L. Reimers ◽  
I. R. Merkatz ◽  
C. Chazotte ◽  
P. Bernstein ◽  
...  
Keyword(s):  
Power Doppler ◽  
Screening Method ◽  
First Trimester ◽  
Severe Preeclampsia ◽  
3 Dimensional

scholarly journals First-trimester 3-dimensional power Doppler of the uteroplacental circulation space: a potential screening method for preeclampsia

2010 ◽  
Vol 203 (3) ◽  
pp. 238.e1-238.e7 ◽  
Author(s):  
Pe'er Dar ◽  
Juliana Gebb ◽  
Laura Reimers ◽  
Peter S. Bernstein ◽  
Cynthia Chazotte ◽  
...  
Keyword(s):  
Power Doppler ◽  
Screening Method ◽  
First Trimester ◽  
3 Dimensional

First-Trimester 3-Dimensional Power Doppler Placental Vascularization Indices From the Whole Placenta Versus the Placental Bed to Predict Preeclampsia

2015 ◽  
Vol 34 (6) ◽  
pp. 965-970 ◽  
Author(s):  
Karen E. Hannaford ◽  
Methodius Tuuli ◽  
Katherine R. Goetzinger ◽  
Linda Odibo ◽  
Alison G. Cahill ◽  
...  
Keyword(s):  
Power Doppler ◽  
First Trimester ◽  
3 Dimensional

scholarly journals Cell-free DNA Testing in Routine Practice: Characterisation of a Cohort with Positive Results for Trisomies, Sex Chromosome Anomalies and Microdeletions

2020 ◽  
Author(s):  
Ismail Tekesin
Keyword(s):  
Sex Chromosome ◽  
Screening Method ◽  
First Trimester ◽  
Routine Practice ◽  
Cell Free Dna ◽  
Patient Counselling ◽  
Chromosome Anomalies ◽  
Free Dna ◽  
Autosomal Aneuploidy ◽  
Current Guidelines

Abstract Introduction Cell-free DNA (cfDNA) testing is increasingly used as a screening method not only for trisomy (T) 21 but also for T18 and T13, sex chromosome anomalies (SCA) and microdeletions. Based on cases with a positive cfDNA result in our specialised prenatal practice, this study aims to characterise the usage of cfDNA testing and to estimate the positive predictive value (PPV) in routine practice in Germany. Patients and Methods In this retrospective study we analysed the data of all pregnant women with a positive cfDNA result seen between 09/2013 and 12/2019. Women were either referred due to the positive result or the test was initiated in our practice. The primary parameter of interest was the concordance of cfDNA tests with confirmatory genetic testing. Results We encountered 81 cases with a positive cfDNA test (T21: 49.4%; T18: 9.9%; T13: 8.6%; SCA: 22.2%; 22q12del: 8.6%). The PPV was 95.0% for T21, but considerably lower for T18 (55.6%) and T13 (28.6%). For SCAs it was 23.1% and no case with DiGeorge syndrome was confirmed. 63% of the patients had not received a fetal anomaly scan before cfDNA testing. In first-trimester fetuses with a cfDNA test predicting an autosomal aneuploidy, fetal anomalies were detected in 90.3% of the cases. No false positive case had an abnormal US result. Conclusions Despite the excellent specificity of cfDNA tests, the PPV for aneuploidies other than T21 is low in routine practice. In discordance with the current guidelines, cfDNA test is often used without a previous detailed anomaly scan. Our data provide valuable information to assist patient counselling and shared decision making.

Influence of Gain Adjustment on 3-Dimensional Power Doppler Indices and on Spatiotemporal Image Correlation Volumetric Pulsatility Indices Using a Flow Phantom

2013 ◽  
Vol 32 (10) ◽  
pp. 1831-1836 ◽  
Author(s):  
Andre H. Miyague ◽  
Nicholas J. Raine-Fenning ◽  
Theo Z. Pavan ◽  
Lukasz T. Polanski ◽  
Miriam N. Baumgarten ◽  
...  
Keyword(s):  
Power Doppler ◽  
Image Correlation ◽  
3 Dimensional ◽  
Flow Phantom ◽  
Doppler Indices ◽  
Gain Adjustment ◽  
Spatiotemporal Image Correlation

Is there a role for 3 dimensional power Doppler placental ultrasound and computerised assessment of calcification in post-term pregnancies?

Radiography ◽  
2016 ◽  
Vol 22 (3) ◽  
pp. e178-e183 ◽  
Author(s):  
M. Moran ◽  
G. Zombori ◽  
J. Ryan ◽  
P. Downey ◽  
F.M. McAuliffe
Keyword(s):  
Power Doppler ◽  
3 Dimensional
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