OP09.13: 3D analysis of fetal brain blood flow during normal pregnancy, effect of contractions and comparison with fetuses with hemodynamic redistribution

2006 ◽  
Vol 28 (4) ◽  
pp. 475-475
Author(s):  
E. Moya ◽  
R. Broullon ◽  
B. Hervias ◽  
J. L. Bartha
Keyword(s):  
Blood Flow ◽  
Fetal Brain ◽  
Normal Pregnancy ◽  
3D Analysis ◽  
Brain Blood Flow

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 Preservation of Fetal Brain Blood Flow Relative to Other Organs during Hypovolemic Hypotension

1982 ◽  
Vol 16 (2) ◽  
pp. 137-140 ◽  
Author(s):  
W A Tweed ◽  
Jacques Cote ◽  
John G Wade ◽  
George Gregory ◽  
Alex Mills
Keyword(s):  
Blood Flow ◽  
Fetal Brain ◽  
Brain Blood Flow ◽  
Hypovolemic Hypotension

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

Heterogeneity of Cerebral Blood Flow: a Fractal Approach

2000 ◽  
Vol 39 (02) ◽  
pp. 37-42 ◽  
Author(s):  
P. Hartikainen ◽  
J. T. Kuikka
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Fractal Dimension ◽  
Frontal Lobe ◽  
Fractal Analysis ◽  
Relative Dispersion ◽  
Emission Computed Tomography ◽  
Brain Blood Flow ◽  
Healthy Controls ◽  
Fractal Approach

Summary Aim: We demonstrate the heterogeneity of regional cerebral blood flow using a fractal approach and singlephoton emission computed tomography (SPECT). Method: Tc-99m-labelled ethylcysteine dimer was injected intravenously in 10 healthy controls and in 10 patients with dementia of frontal lobe type. The head was imaged with a gamma camera and transaxial, sagittal and coronal slices were reconstructed. Two hundred fifty-six symmetrical regions of interest (ROIs) were drawn onto each hemisphere of functioning brain matter. Fractal analysis was used to examine the spatial heterogeneity of blood flow as a function of the number of ROIs. Results: Relative dispersion (= coefficient of variation of the regional flows) was fractal-like in healthy subjects and could be characterized by a fractal dimension of 1.17 ± 0.05 (mean ± SD) for the left hemisphere and 1.15 ± 0.04 for the right hemisphere, respectively. The fractal dimension of 1.0 reflects completely homogeneous blood flow and 1.5 indicates a random blood flow distribution. Patients with dementia of frontal lobe type had a significantly lower fractal dimension of 1.04 ± 0.03 than in healthy controls. Conclusion: Within the limits of spatial resolution of SPECT, the heterogeneity of brain blood flow is well characterized by a fractal dimension. Fractal analysis may help brain scientists to assess age-, sex- and laterality-related anatomic and physiological changes of brain blood flow and possibly to improve precision of diagnostic information available for patient care.

The effect of steroids on the fetal brain and umbilical blood flow and biophysical profile

2003 ◽  
Vol 189 (6) ◽  
pp. S218
Author(s):  
Zeev Weiner ◽  
Rula Hamisa ◽  
Allan Fisher ◽  
Allan Bombard ◽  
Eliezer Shalev
Keyword(s):  
Blood Flow ◽  
Fetal Brain ◽  
Umbilical Blood ◽  
Biophysical Profile ◽  
Umbilical Blood Flow
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