scholarly journals Reference ranges for serial measurements of blood velocity and pulsatility index at the intra-abdominal portion, and fetal and placental ends of the umbilical artery

2005 ◽  
Vol 26 (2) ◽  
pp. 162-169 ◽  
Author(s):  
G. Acharya ◽  
T. Wilsgaard ◽  
G. K. R. Berntsen ◽  
J. M. Maltau ◽  
T. Kiserud
Keyword(s):  
Pulsatility Index ◽  
Umbilical Artery ◽  
Blood Velocity ◽  
Reference Ranges ◽  
Serial Measurements ◽  
Abdominal Portion

scholarly journals P07.14: Reference ranges for serial measurements of umbilical artery Doppler indices in the second half of pregnancy

2004 ◽  
Vol 24 (3) ◽  
pp. 311-311
Author(s):  
G. Acharya ◽  
T. Wilsgaard ◽  
G. K. R. Berntsen ◽  
J. M. Maltau ◽  
T. Kiserud
Keyword(s):  
Umbilical Artery ◽  
Reference Ranges ◽  
Umbilical Artery Doppler ◽  
Doppler Indices ◽  
Serial Measurements

Reference ranges for serial measurements of umbilical artery Doppler indices in the second half of pregnancy

2005 ◽  
Vol 192 (3) ◽  
pp. 937-944 ◽  
Author(s):  
Ganesh Acharya ◽  
Tom Wilsgaard ◽  
Gro K. Rosvold Berntsen ◽  
Jan Martin Maltau ◽  
Torvid Kiserud
Keyword(s):  
Umbilical Artery ◽  
Reference Ranges ◽  
Umbilical Artery Doppler ◽  
Doppler Indices ◽  
Serial Measurements

scholarly journals Reference values for Doppler indices of the umbilical and fetal middle cerebral arteries in uncomplicated third trimester pregnancy

1970 ◽  
Vol 32 (3) ◽  
pp. 5-13
Author(s):  
S Paudel ◽  
B Lohani ◽  
G Gurung ◽  
MA Ansari ◽  
P Kayastha
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Pulsatility Index ◽  
Umbilical Artery ◽  
Resistance Index ◽  
Reference Ranges ◽  
Regression Equations ◽  
Third Trimester ◽  
Trimester Pregnancy ◽  
Doppler Indices

Introduction: The purpose of this study was to categorize new reference ranges for measurements of commonly used umbilical artery and fetal middle cerebral artery Doppler indices (Pulsatility Index, Resistance Index, and Systolic: Diastolic ratio) in uncomplicated third trimester pregnancy. Methods: This was a prospective cross sectional study involving 101 singleton uncomplicated pregnancies of 30 to 37 weeks of gestation. Umbilical artery indices were obtained from free floating loop and middle cerebral Doppler indices were obtained from the proximal third of the artery with flow towards the probe. Regression equations were used to categorize reference ranges and percentile fitted Normograms were obtained for all the parameters. Results: Among 101 singleton pregnancies between 30 and 37 weeks of gestation, 65 (64.35%) were primigravida women and 36 (34.65%) were multigravida. Mean maternal age was 23.12years (range 16 to 35 years). Maximum number of pregnancies (18.81%) was at 34 weeks of gestation. The established percentiles of Doppler indices showed a continuous reduction of all the measured indices as pregnancy increases (p<0.0001). Conclusions: Reference ranges were obtained for the middle cerebral artery and umbilical artery Doppler indices. These ranges are consistent with similar studies done by other authors. Keywords: Doppler study; fetal Middle cerebral artery; pulsatility index; resistance index; systolic; diastolic ratio; umbilical artery DOI: http://dx.doi.org/10.3126/joim.v32i3.4953 Journal of Institute of Medicine, December, 2010; 32:3 5-13

scholarly journals 684 Intertwin differences in umbilical artery pulsatility index and risk for twin-to-twin transfusion syndrome

2021 ◽  
Vol 224 (2) ◽  
pp. S429-S430
Author(s):  
Jimmy Espinoza ◽  
Ozhan Turan ◽  
Andres F. Espinoza ◽  
Elizabeth Kravitz ◽  
Summer Walton ◽  
...  
Keyword(s):  
Pulsatility Index ◽  
Umbilical Artery
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