Placental Blood Flow by Three-dimensional Doppler Ultrasound

2016 ◽  
Vol 10 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Ivica Zalud
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Rapid Development ◽  
Three Dimensional ◽  
Color Doppler Ultrasound ◽  
Clinical Applications ◽  
Ultrasound Technique ◽  
Placental Blood ◽  
Placental Blood Flow

ABSTRACT This review aims to provide the reader with an overview of the potential clinical applications in three-dimensional (3D) Doppler ultrasound for the evaluation of vascularity and blood flow within the placenta. Significant innovations have recently occurred, improving the visualization and evaluation of placental vascularity, resulting from enhancements in delineation of tissue detail through electronic compounding and harmonics, as well as enhancements in signal processing of frequencyand/ or amplitude-based color Doppler ultrasound. Spatial representation of vascularity can be improved by utilizing 3D processing. Greater sensitivity of 3D Doppler ultrasound to macro- and microvascular flow has provided improved anatomical and physiologic assessment throughout pregnancy. The rapid development of these new sonographic techniques will continue to enlarge the scope of clinical applications in placental studies. Three-dimensional Doppler sonography is a unique ultrasound technique that enables assessment of vascular signals within the whole investigated area. Homodynamic changes included in the process of placentation are one of the most exciting topics in the investigation of early human development. How to cite this article Zalud I. Placental Blood Flow by Threedimensional Doppler Ultrasound. Donald School J Ultrasound Obstet Gynecol 2016;10(1):55-62.

Placental blood flow measured by three-dimensional power Doppler ultrasound at 26 to 35 weeks gestation in normal pregnancies

2009 ◽  
Vol 23 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Hélio Antonio Guimarães Filho ◽  
Edward Araujo Júnior ◽  
Rosiane Mattar ◽  
Lavoisier Linhares Dias Da Costa ◽  
Carlos Fernando de Mello Júnior ◽  
...  
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Three Dimensional ◽  
Power Doppler Ultrasound ◽  
Placental Blood ◽  
Placental Blood Flow

Placental blood flow measured by three-dimensional power Doppler ultrasound at 26 to 35 weeks gestation in normal pregnancies

2009 ◽  
pp. 1-5 ◽  
Author(s):  
Helio Guimaraes Filho ◽  
Edward Araujo Junior ◽  
Rosiane Mattar ◽  
Lavoisier Dias Da Costa ◽  
Carlos de Mello Junior ◽  
...  
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Power Doppler ◽  
Three Dimensional ◽  
Power Doppler Ultrasound ◽  
Placental Blood ◽  
Placental Blood Flow

Color transcranial “power” Doppler ultrasound of intracranial aneurysms

1996 ◽  
Vol 84 (3) ◽  
pp. 459-461 ◽  
Author(s):  
Joanna M. Wardlaw ◽  
James C. Cannon
Keyword(s):  
Doppler Ultrasound ◽  
Intracranial Aneurysms ◽  
Flow Direction ◽  
Color Doppler ◽  
Power Doppler ◽  
Color Doppler Imaging ◽  
Color Doppler Ultrasound ◽  
Doppler Imaging ◽  
Ultrasound Technique ◽  
Content Type

✓ “Color Doppler energy” (or “power Doppler”), a new color Doppler ultrasound technique that is independent of flow direction and very sensitive to movement, was assessed for its use in the identification of intracranial aneurysms in patients with recent subarachnoid hemorrhage immediately prior to using cerebral angiography. Features that identified aneurysms using this technique included the appearance of abnormal color where no normal artery was expected, abnormal bulging of an artery, and greater “expansibility” of the aneurysm in comparison to an adjacent normal vessel. In this exploratory study, 30 of 33 aneurysms were correctly identified in 35 patients with a good bone window. Color Doppler energy is considerably more sensitive to intracranial blood flow than conventional color Doppler imaging. Color Doppler energy is a useful research tool; if these preliminary results are verified in larger series, in addition to examination for vasospasm, the technique could be used for identification and follow up of aneurysms.

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