Results 261 to 270 of about 476,830 (314)

Calculations in estimating fetal weight

American Journal of Obstetrics and Gynecology, 1957
Abstract Further simplification of calculations necessary in estimating fetal weight in utero is presented.
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Accurate Ultrasonic Estimation of Fetal Weight

American Journal of Perinatology, 1985
The accuracy of eight ultrasonic fetal weight formulas were analyzed in 1099 fetuses who underwent real-time ultrasound examination within 72 hours prior to delivery. Shepard's formula was most consistently found to give the lowest systematic and random errors throughout all weight categories, though Deter's formula had an almost identical accuracy ...
W J, Ott, S, Doyle, S, Flamm
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Fetal weight and membrane tensile strength

American Journal of Obstetrics and Gynecology, 1964
Abstract 1. 1. The tensile strength per unit width of membranes was studied in 62 cases of premature delivery and late abortion, 27 cases of premature rupture of the membranes, and 101 normal term deliveries. 2. 2. The average tensile strength of the membranes from normal term deliveries was 0.207 Kg.
W Z, POLISHUK, S, KOHANE, A, HADAR
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Fetal weight estimation in twin pregnancies

European Journal of Obstetrics & Gynecology and Reproductive Biology, 1989
In this study the fetal weight was estimated by ultrasound measurements of the biparietal (BPD) and abdominal diameters (AD) in 154 consecutive twin pregnancies. In 80 twins an attempt to estimate fetal weight was made 0-4 days before delivery (26% of all twins examined).
N J, Secher, A, Tøttrup, H, Djursing, T, Weber   +3 more
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Estimation of fetal weight by fetography

American Journal of Obstetrics and Gynecology, 1977
The present studies were designed to estimate fetal weight on the basis of the thesis that the factors which determine body weight include the fetal bone and the amount of fetal soft tissue, i.e., fetal corpulence. Scalp thickness on the fetogram in the vertex presentation was measured, and the ratio of the minimal femur diameter to the thickness of ...
S, Ogita, T, Kamei, T, Sugawa
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Automatic balance for fetal weight studies

American Journal of Obstetrics and Gynecology, 1976
An automatic balance was constructed of aluminum sheet, miniature ball bearings, and a strain gauge. The balance was capable of measuring 1 to 4 kg. with an accuracy of +/- 0.5 Gm. and a 95 per cent response time of less than 0.3 seconds. Fetuses of term ewes were exteriorized and weighed continuously for up to 3 hours.
R M, Abrams, J F, Clapp, D, Caton, H T, Hammel   +3 more
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Prediction of fetal weights in twins

Acta Obstetricia et Gynecologica Scandinavica, 1995
Objective. To determine the accuracy of sonographic weight estimation of twin fetuses. Methods In 73 twin‐pregnancies, fetal weight estimation by ultrasound was performed within 7 days prior to delivery. Fetal head biparietal diameter and abdominal circumference were measured.
O H, Jensen, H, Jenssen
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Estimation of Fetal Weight by Ultrasound

Hormone Research, 1992
Estimation of fetal size by ultrasound has supported two recent concepts of fetal growth. Firstly, the normal weight gain is constant from 28 weeks of gestation until several weeks after term; about 27 g/day. Secondly, the average weight of fetuses born preterm is lower than the average weight of fetuses of the same gestational age who remain in utero.
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Determination of fetal weight in utero

American Journal of Obstetrics and Gynecology, 1961
Abstract 1. 1. The importance of fetal weight in utero as it pertains to the current evaluation of the obstetrical patient is discussed. 2. 2. A review of the literature uncovered no accurate method for determination of fetal weight in utero. 3. 3.
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Estimation of fetal weight by ultrasound

Journal of Clinical Ultrasound, 1983
AbstractBirth weight (BW) and log10 birth weight (LBW) are expressed as linear, multilinear, parabolic, and polynomial regression functions of the abdominal circumference (AC), and combinations of fetal index measurements, namely, AC and head circumference (HC); biparietal diameter (BPD) and AC; and BPD, HC, and AC.
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