scholarly journals P10.05: Quantitative 3D power Doppler ultrasound in the assessment of normal fetal brain blood flow: a reproducibility study of this method

2009 ◽  
Vol 34 (S1) ◽  
pp. 215-215
Author(s):  
H. Milani ◽  
E. Q. Barreto ◽  
K. K. Haratz ◽  
L. C. Rolo ◽  
L. Nardozza ◽  
...  
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Fetal Brain ◽  
Brain Blood Flow ◽  
Power Doppler Ultrasound ◽  
Reproducibility Study ◽  
3D Power Doppler

Three-dimensional power Doppler ultrasound for the assessment of the fetal brain blood flow in normal gestation

2003 ◽  
Vol 29 (9) ◽  
pp. 1273-1279 ◽  
Author(s):  
Chiung-Hsin Chang ◽  
Chen-Hsiang Yu ◽  
Huei-Chen Ko ◽  
Chu-Ling Chen ◽  
Fong-Ming Chang
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Three Dimensional ◽  
Fetal Brain ◽  
Brain Blood Flow ◽  
Power Doppler Ultrasound ◽  
Normal Gestation

scholarly journals Three-dimensional Power Doppler Ultrasound Study of the Placenta

2014 ◽  
Vol 8 (4) ◽  
pp. 400-409
Author(s):  
Toshiyuki Hata ◽  
Sarah Cajusay-Velasco
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Power Doppler ◽  
Three Dimensional ◽  
Morphological Characteristics ◽  
Power Doppler Ultrasound ◽  
Placental Perfusion ◽  
Ultrasound Study ◽  
3D Power Doppler

ABSTRACT Advanced ultrasound technology has been a valuable tool in the assessment of placental anatomy and physiology. Conventional two-dimensional (2D) sonography reveals placental morphological characteristics, 2D color Doppler can assess blood flow in the placenta, 2D power Doppler can evaluate placental vascular trees, and three-dimensional (3D) ultrasound gives more detailed information on the surface anatomy. Recent advances, such as 3D power Doppler with virtual organ computer aided-analysis (VOCAL) and histogram analysis can measure the placental volume, and assess uteroplacental and fetoplacental perfusions. In particular, ‘placental vascular sonobiopsy’ can specifically evaluate the second- and thirdtrimester placental blood flow and vascularity by obtaining several spherical samples from the placenta that will represent the entire placenta. This article presents normal placental development and pathological findings of the placenta using 3D power Doppler ultrasound, and discusses 3D power Doppler assessments of placental perfusion in high-risk pregnancies, such as fetal growth restriction, pregnancy-induced hypertension and preeclampsia, and, from this basis, re-establishes the importance of 3D power Doppler ultrasound as a screening, diagnostic, and surveillance tool in normal and abnormal pregnancies. How to cite this article Tanaka H, Cajusay-Velasco S, Noguchi J, Hata T. Three-dimensional Power Doppler Ultrasound Study of the Placenta. Donald School J Ultrasound Obstet Gynecol 2014;8(4):400-409.

The Influence of Hyperoxygenation on Fetal Brain Vascularity Measured Using 3D Power Doppler Ultrasound and the Index “Fractional Moving Blood Volume”

2021 ◽  
pp. 1-9
Author(s):  
Evitta Issa ◽  
Gordon Niall Stevenson ◽  
Ana Elizabeth Gomes De Melo Tavares Ferreira ◽  
Melissa Han Yiin Chang ◽  
Jennifer Alphonse ◽  
...  
Keyword(s):  
Blood Volume ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Fetal Brain ◽  
Threshold Effect ◽  
Power Doppler Ultrasound ◽  
Third Trimester ◽  
3D Power Doppler ◽  
Significant Difference ◽  
Before And After

<b><i>Introduction:</i></b> Maternal hyperoxygenation effects on fetal cerebral hemodynamics are largely unknown. This study aimed to determine efficacy and reliability of a validated power Doppler ultrasound (US) index, fractional moving blood volume (FMBV), at measuring fetal cerebral vasculature changes during maternal hyperoxia. <b><i>Methods:</i></b> The fetal cerebral effects of 10 min of hyperoxygenation at 2 flow rates (52%/60% FiO<sub>2</sub>) were evaluated in women in their third trimester of pregnancy. 2D-US and 3D-US in a transverse plane were performed before, during, and following maternal hyperoxygenation with FMBV estimation performed offline. <b><i>Results:</i></b> Forty-five cases provided data for analysis. Mean intraobserver ICCs were 0.89 (3D-FMBV) and 0.84 (2D-FMBV). A significant difference in vascularity before and during and before and after 60% hyperoxia was observed (<i>p</i> &#x3c; 0.05), whereas no significant differences were found at 52% hyperoxia (<i>p</i> &#x3e; 0.05). Significant differences in vascularity were found between 2D-FMBV and 3D-FMBV (<i>p</i> &#x3c; 0.01). <b><i>Conclusion:</i></b> Measurement of fetal cerebral vascularity by 3D-FMBV and 2D-FMBV was highly reproducible. The differing cerebral vascular changes seen with 60% but not 52% FiO<sub>2</sub> suggest a possible “threshold effect” that may have influenced prior studies. Further studies are needed to assess cerebral effects of maternal hyperoxygenation on compromised fetuses.

P10.06: Three-dimensional power Doppler ultrasound for the assessment of the fetal brain vascularization and blood flow in normal pregnancy

2010 ◽  
Vol 36 (S1) ◽  
pp. 207-207
Author(s):  
H. F. Milani ◽  
A. Moron ◽  
E. Q. Barreto ◽  
E. Araujo Junior ◽  
K. K. Haratz ◽  
...  
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Three Dimensional ◽  
Fetal Brain ◽  
Normal Pregnancy ◽  
Power Doppler Ultrasound
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