scholarly journals OP39.03: A new proposal of sonobiopsy of fetal brain using 3D power Doppler angiography (VOCAL) in normal and growth restricted fetuses

2010 ◽  
Vol 36 (S1) ◽  
pp. 165-165
Author(s):  
A. Rossi ◽  
L. Forzano ◽  
G. Fachechi ◽  
A. Balsamo ◽  
A. Adorati Menegato ◽  
...  
Keyword(s):  
Power Doppler ◽  
Fetal Brain ◽  
3D Power Doppler

scholarly journals Fetal Brain Vascularity Visualized by Conventional 2D and 3D Power Doppler Technology

2010 ◽  
Vol 4 (3) ◽  
pp. 249-258 ◽  
Keyword(s):  
Power Doppler ◽  
Three Dimensional ◽  
Fetal Brain ◽  
Basic Knowledge ◽  
Circulation System ◽  
Normal Brain ◽  
Color Flow ◽  
Fetal Circulation ◽  
3D Power Doppler ◽  
Doppler Techniques

Abstract Significant advances have been made in accurate and reliable visualization of the cerebral circulation in normal and abnormal pregnancies. They provided the non-invasive studies of fetal cerebral angiogenesis and further development that filled some of the gaps made by neuroanatomical studies alone. The first breakthrough in the assessment of fetal circulation was development of Doppler system with purpose to obtain velocity waveforms. Continuing technical advances in Doppler ultrasound equipment, especially highly sensitive color flow imagining techniques have made it possible to study smaller anatomical parts of fetal circulation system including cerebral vascularization. Before examination of brain vascularity, anatomical vascular structure and development on the different appearance at each gestational age should be remembered as the basic knowledge. Since the development of the embryo is rapid and significant changes occur during even one week it is important to specify the stage of the embryo or fetus both by age (postmenstrual weeks and days) and by size (crownrump length (CRL) and biparietal diameter (BPD). Introduction of three-dimensional (3D) sonography and 3D power Doppler techniques have enabled visualization of intracranial vessels. 3D power Doppler assessment particularly adds useful information in the prenatal evaluation of normal brain development, vascular malformation and tumoral vascularity.

scholarly journals P13.17: Transvaginal 3D power Doppler (3DPD) sonographic evaluation of the fetal brain at 10-13 weeks' gestation

2012 ◽  
Vol 40 (S1) ◽  
pp. 222-222
Author(s):  
M. Ito ◽  
J. Noguchi ◽  
C. Tenkumo ◽  
M. Sato ◽  
N. Mori ◽  
...  
Keyword(s):  
Power Doppler ◽  
Fetal Brain ◽  
Sonographic Evaluation ◽  
3D Power Doppler

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.

3D-Power Doppler Ultrasound of Breast Lesions with a Microbubble Contrast Agent

2002 ◽  
Vol 9 (2) ◽  
pp. S384-S385 ◽  
Author(s):  
C.R Krestan ◽  
C Riedl ◽  
M Memarsadeghi ◽  
M Rudas ◽  
G Pfarl ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Breast Lesions ◽  
Power Doppler Ultrasound ◽  
Microbubble Contrast Agent ◽  
3D Power Doppler
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