Results 221 to 230 of about 485,473 (260)
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Fetal weight and membrane tensile strength
American Journal of Obstetrics and Gynecology, 1964Abstract 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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Accuracy of Fetal Weight Estimation by Ultrasound
Asia-Oceania Journal of Obstetrics and Gynaecology, 1986AbstractThe main objective of this study was to assess the accuracy of fetal weight estimation by ultrasound. 124 patients were scanned and the estimated fetal weight calculated by the equation of Warsof revised by Shepard was compared with actual fetal weight of the newborns, who were born within one week of the last scan.
C, Anandakumar +3 more
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Accurate Ultrasonic Estimation of Fetal Weight
American Journal of Perinatology, 1985The 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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Automatic balance for fetal weight studies
American Journal of Obstetrics and Gynecology, 1976An 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 +3 more
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ULTRASONIC MEASUREMENT OF FETAL ABDOMEN CIRCUMFERENCE IN THE ESTIMATION OF FETAL WEIGHT
BJOG: An International Journal of Obstetrics & Gynaecology, 1975SummaryA method of estimating fetal weight by ultrasonic measurement of the fetal abdominal circumference is described. Assessment of birth weight predictions on 140 fetuses who were delivered within 48 hours of this measurement showed that the accuracy of predictions varied with the size of the fetus; at a predicted weight of 1 kg, 95 per cent of ...
S, Campbell, D, Wilkin
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Maternal-Fetal Weight Relationships in Primates
Folia Primatologica, 1973Analysis of maternal-fetal weight relationships in primates based on the regression equation F (fetal weight) = b · M (maternal weight)a indicates that prosimian and anthropoid primates are separated by an allometric shift which can be interpreted as a result of differences in placental structures.
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The significance of placental/fetal weight ratios
American Journal of Obstetrics and Gynecology, 1960Abstract The placental coefficient (placental weight/fetal weight) was determined in 956 third trimester births in order to ascertain and define the abnormally small or large placenta. With the described methods, any term infant with a placental coefficient less than 0.10 and greater than 0.18 may be considered to have a relatively small or large ...
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Sonographic Estimation of Fetal Age and Weight
Radiologic Clinics of North America, 1990Real-time ultrasound is a very effective tool in the estimation of fetal age and weight. The most accurate fetal age estimates are from crown-rump length measurements in early pregnancy. Late pregnancy age estimates are less accurate, but the use of multiple body measurements provides a composite age estimate generally accurate to within 7 per cent of ...
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