scholarly journals P17At what gestational age can the corpus callosum and cavum septi pellucidi be regularly seen at routine obstetrical ultrasound examination?

2000 ◽  
Vol 16 ◽  
pp. 70-70
Author(s):  
A. Toi
Keyword(s):  
Corpus Callosum ◽  
Gestational Age ◽  
Ultrasound Examination ◽  
Cavum Septi Pellucidi ◽  
Obstetrical Ultrasound

Gestational Age at Preterm Birth in Relation to Corpus Callosum and General Cognitive Outcome in Adolescents

2007 ◽  
Vol 22 (6) ◽  
pp. 761-765 ◽  
Author(s):  
Ana Narberhaus ◽  
Dolors Segarra ◽  
Xavier Caldú ◽  
Monica Giménez ◽  
Carme Junqué ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Corpus Callosum ◽  
Gestational Age ◽  
Cognitive Outcome

scholarly journals A Sonographic Study on Estimating of Gestational Age by Placental Thickness

2020 ◽  
Vol 8 (1) ◽  
pp. 110-113
Author(s):  
Prashanth G Patil ◽  
KM Nataraj ◽  
Shaik Hussain Saheb
Keyword(s):  
Correlation Coefficient ◽  
Gestational Age ◽  
Ultrasound Examination ◽  
Prediction Interval ◽  
Good Alternative ◽  
Third Trimester ◽  
Biometric Parameters ◽  
Relationship Of ◽  
The Relationship ◽  
Placental Thickness

Background: Knowledge of gestational age (GA) is important because it affects clinical management in many ways. Ultrasonography has provided a safe and noninvasive means of dating a pregnancy. The purpose of the present study is to assess the relationship of placental thickness with gestational age and to compare it with other sonographic parameters used to estimate gestational age. Subjects and Methods: The study included 242 normal pregnant women who knew their last menstrual period (LMP). After taking consent, all the women underwent an ultrasound examination. During the scan, besides measuring routine biometric parameters, Placental thickness at the cord insertion was also measured. A retrospective study was designated to test the hypothesis that placental thickness in an age dependant variable and hence can predict gestational age. In the end, the predicted gestational age by placental thickness was compared with gestational age as determined by other sonographic parameters. Results: Placental thickness showed a linear progression in relation to the menstrual age. The correlation coefficient was found to be 0.86(p<0.001). The regression equation was formulated by regressing gestational age on the measured placental thickness. The correlation coefficient between GA-LMP and GA-USG was 0.92 as compared to 0.86 between GA-LMP and GA-PT. The standard error for other USG parameters was +2.32 compared to +2.96 for placental thickness. Conclusion: Placental thickness being a fusion of menstrual age, can be used to predict the gestational age by using the regression formula. Gestational age calculated by other USG parameters is closer to menstrual age as compared to that by placental thickness. The prediction interval was slightly more when the placental thickness was used instead of other USG parameters. Placental thickness is a good alternative parameter for predicting gestational age in the second and third trimester.

scholarly journals EP08.15: Cavum septi pellucidi (CSP) ratio: is it also a marker for dysgenesis of the corpus callosum?

2019 ◽  
Vol 54 (S1) ◽  
pp. 281-281
Author(s):  
J. Miguelez ◽  
M.H. Carvalho ◽  
E.Q. Barreto ◽  
W. Hisaba
Keyword(s):  
Corpus Callosum ◽  
Cavum Septi Pellucidi

Detection of the Small-for-Gestational Age Twin Fetus by a Two-Stage Ultrasound Examination Schedule

1982 ◽  
Vol 31 (3-4) ◽  
pp. 235-240 ◽  
Author(s):  
J.P. Neilson
Keyword(s):  
Early Pregnancy ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Ultrasound Examination ◽  
Ultrasonic Measurement ◽  
Two Stage ◽  
Crown Rump Length ◽  
Biparietal Diameter ◽  
Ultrasonic Assessment ◽  
Twin Pregnancies

Serial ultrasonic measurement of the biparietal diameter is an unsatisfactory means of detecting the small-for-gestational age (SGA) fetus in twin pregnancies. A new two-stage ultrasound examination schedule, highly effective in detecting the SGA singleton fetus, has been evaluated prospectively in 31 twin pregnancies. The schedule comprises ultrasonic assessment of gestational age in early pregnancy, followed by measurement of the product of the crown–rump length and trunk area of both fetuses at 34–36 weeks. All Nineteen SGA twin fetuses were detected using this schedule; the technique offers several other advantages over serial biparietal cephalometry.

OP25.05: Corpus callosum differences assessed by MRI in term small for gestational age fetuses and its association with neurobehaviour

2014 ◽  
Vol 44 (S1) ◽  
pp. 168-168
Author(s):  
G. Egaña-Ugrinovic ◽  
M. Sanz-Cortes ◽  
C. Couve-Pérez ◽  
F. Figueras ◽  
E. Gratacós
Keyword(s):  
Corpus Callosum ◽  
Gestational Age ◽  
Small For Gestational Age

scholarly journals Maturation of Corpus Callosum Anterior Midbody Is Associated with Neonatal Motor Function in Eight Preterm-Born Infants

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Preethi Mathew ◽  
Kerstin Pannek ◽  
Pamela Snow ◽  
M. Giulia D'Acunto ◽  
Andrea Guzzetta ◽  
...  
Keyword(s):  
Corpus Callosum ◽  
Preterm Infants ◽  
Motor Function ◽  
Gestational Age ◽  
Diffusion Tensor ◽  
Mean Diffusivity ◽  
Motor Impairments ◽  
Very Preterm Infants ◽  
Very Preterm ◽  
Preterm Born

Background. The etiology of motor impairments in preterm infants is multifactorial and incompletely understood. Whether corpus callosum development is related to impaired motor function is unclear. Potential associations between motor-related measures and diffusion tensor imaging (DTI) of the corpus callosum in preterm infants were explored.Methods. Eight very preterm infants (gestational age of 28–32 weeks) underwent the Hammersmith neonatal neurological examination and DTI assessments at gestational age of 42 weeks. The total Hammersmith score and a motor-specific score (sum of Hammersmith motor subcategories) were calculated. Six corpus callosum regions of interest were defined on the mid-sagittal DTI slice—genu, rostral body, anterior midbody, posterior midbody, isthmus, and splenium. The fractional anisotropy (FA) and mean diffusivity (MD) of these regions were computed, and correlations between these and Hammersmith measures were sought.Results. Anterior midbody FA measures correlated positively with total Hammersmith (rho=0.929,P=0.001) and motor-specific scores (rho=0.857,P=0.007). Total Hammersmith scores also negatively correlated with anterior midbody MD measures (rho=−0.714,P=0.047).Discussion. These results suggest the integrity of corpus callosum axons, particularly anterior midbody axons, is important in mediating neurological functions. Greater callosal maturation was associated with greater motor function. Corpus callosum DTI may prove to be a valuable screening or prognostic marker.

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