Results 171 to 180 of about 5,528 (219)

Significance of Biparietal Diameter Differences Between Twins

Obstetrics & Gynecology, 1978
Twins of dissimilar size have increased risks both at delivery and in the neonatal period. When dissimilar growth is severe, it should be reflected in birthweight and biparietal diameter (BPD) growth. Sonograms were done on 74 of 106 sets of twins delivered from July 1, 1973, to June 30, 1977.
A F, Haney, M C, Crenshaw, P J, Dempsey
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A New Look at Biparietal Diameter

Australian and New Zealand Journal of Obstetrics and Gynaecology, 1989
Summary: A biparietal diameter (BPD) chart is presented based on an Australian population whose gestational age was confirmed by ultrasound early in pregnancy. The data show the gestational age to be predicted to within ± 7 days until 16 weeks and ± 10 days until 20 weeks gestation.
Lachlan Ch de Crespigny, Andrew L. Speirs   +1 more
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Determining the Biparietal Diameter

1975
Suprapubic cross section used in measuring the the biparietal diameter with B-scan. Complete circumference of cranium with central echo, biparietal diameter: 9 cm.
Hossein Schams, Jürg Bretscher
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Biparietal Diameter Growth in Uncomplicated Twin Gestation

American Journal of Perinatology, 1987
Ninety-six fetuses of uncomplicated concordant twin pregnancies were monitored by ultrasonic cephalometry from 13 to 38 weeks gestation. The biparietal diameter (BPD) growth of 96 twin fetuses was then compared to a sample of 299 uncomplicated, appropriate-for-gestational-age singleton pregnancies.
Y G, Shah, D, Graham, S K, Stinson, T D, Render   +3 more
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The relation of body weight to the biparietal diameter in the newborn

American Journal of Obstetrics and Gynecology, 1956
Abstract The relation between body weight and the biparietal diameter of the head in a series of 600 newborn infants has been determined. There is found to be a general correlation between body weight and head size, but the extremes of variation are so great as to make it impossible and dangerous to estimate the possibility of cephalopelvic ...
W P, KOSAR, C M, STEER
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A standardized plane for biparietal diameter measurement.

Journal of Ultrasound in Medicine, 1982
Biparietal diameter measurement is the most widely accepted means of determining gestational age. However, a standard anatomic plane for performing this measurement has not been established. Three hundred forty-four measurements on 256 patients who gave birth to normal infants were obtained and compared at various cranial levels based on brain anatomy.
M, Shepard, R A, Filly
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Normal Range Curves for the Intrauterine Growth of the Biparietal Diameter

Acta Obstetricia et Gynecologica Scandinavica, 1978
Abstract. Normal range curves for the growth of the fetal biparietal diameter (BPD) measured by ultrasound were calculated in three different ways; I. 93 selected women examined longitudinally with three‐week intervals from the 16th gestational week to term. II.
P H, Persson, L, Grennert, G, Gennser, B, Gullberg   +3 more
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Determination of Biparietal Diameter by the Ultrasonic B‐Scan Technique

Acta Obstetricia et Gynecologica Scandinavica, 1974
Abstract. One thousand four hundred and forty‐eight biparietal measurements were performed on 1 062 un‐selected patients between the 24th‐42nd weeks of gestation. 869 patients had a single measurement and 193 patients had two or more measurements. The B‐scan method was used for the measurements.
K, Aantaa, M, Forss
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Sonar biparietal diameter growth standards in the rhesus monkey

American Journal of Obstetrics and Gynecology, 1975
Serial sonar fetal cephalometry was performed on 67 pregnant monkeys (Macaca ulatta) with known breeding dates. A normal biparietal diameter (BPD) growth curve was constructed along four percentile divisions; namely, the 10th to the 24th, 25th to the 49th, 50th to the 74th, and the 75th to the 90th.
R E, Sabbagha, J H, Turner, R A, Chez
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The ultrasonic biparietal diameter, expressed in time units

The British Journal of Radiology, 1971
In foetal cephalometry using ultrasound, echoes from the outside of the proximal skull surface and the inside of the distal skull surface are identified on an oscilloscope screen. The time between the leading edges of the two echoes is then measured, usually with some form of electronic time scale or calliper. The accepted technique is then to assume a
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