Search Results
Results 251 - 300 of 1226
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Lubusky Marek - - 2007
BACKGROUND: A comparison of fetal ultrasonographic biometric parameters of the head (head circumference - HC, biparietal diameter - BPD) in breech presented fetuses. METHODS: Ultrasound biometry was performed in accordance with the method presented in the reference tables. In all breech presented fetuses, the HC, BPD and FL (femur length) ...
Shahi Shahriar - - 2007
The purpose of this study was to evaluate the effect of spreader penetration depth on apical microleakage using the lateral compaction method. A total of 96 extracted maxillary central incisors were instrumented using the step-back method, and randomly divided into the following four experimental groups: A) with tug-back and spreader ...
Scott I C - - 2008
Recent studies have demonstrated that gestation length of red deer (Cervus elaphus) is highly variable and influenced by various environmental factors, and this may confer survival advantages for neonates. The current study investigated the relationship between conception date and gestation length to test the hypothesis that within-herd synchrony of red ...
Sherer David M - - 2007
OBJECTIVE: The purpose of this study was to create reference range nomograms of the axial fetal neck circumference (FNC) and fetal neck area (FNA) throughout gestation. METHODS: This prospective cross-sectional study involved pregnant patients between 14 and 40 weeks' gestation. Inclusion criteria consisted of well-established dates (confirmed by early sonography) ...
Miller Russell S - - 2007
OBJECTIVE: The purpose of this study was to evaluate the performance of a sonographic measurement of fetal asymmetry, abdominal diameter minus biparietal diameter (AD - BPD), in the prediction of shoulder dystocia (SD) in a patient population that was unselected for diabetes mellitus (DM) status. METHODS: Patients who underwent sonographic ...
Wagner Steven J - - 2007
Pre-eclampsia is a pregnancy-specific disorder that causes a high degree of maternal and fetal morbidity and mortality. Despite many recent advances in the field, the diagnosis, treatment and prevention of pre-eclampsia remain elusive. The current patent application provides evidence for a marker of pre-eclampsia, a 26.6-kDa polypeptide, which is present ...
Saksiriwuttho Piyamas - - 2007
OBJECTIVES: 1) To construct normal fetal biometry charts of fetal biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur length (FL) from 14 to 41 weeks of gestation in northeastern Thailand. 2) To compare the results with other studies. STUDY DESIGN: A cross sectional descriptive study. SETTING: Division ...
Shiels William E WE - - 2007
BACKGROUND: US readily demonstrates cartilaginous structures, and static sonography has shown potential in evaluating clubfoot deformity. OBJECTIVE: To investigate the potential of dynamic sonography in the evaluation of the congenital clubfoot. MATERIALS AND METHODS: Sonography was used for static and dynamic stress evaluation of 13 clubfeet and 35 normal feet ...
Tansathit Thitinan - - 2007
OBJECTIVE: To quantify the correlation between gestational age and the normal distance between the insertion of the medial leaflets of the mitral valve and tricuspid valve in Thai fetuses. MATERIAL AND METHOD: A prospective study was constructed using an apical 4-chamber view at end diastole to measure the mitral valve-tricuspid ...
Yunis Khalid A - - 2007
This study aimed to develop fetal growth charts for the population of Greater Beirut, Lebanon, and compare them with previously established references. A survey of consecutive singleton livebirths admitted to normal nurseries and neonatal intensive care units of major hospitals, through the database project of the National Collaborative Perinatal Neonatal ...
Aktürk A S - - 2007
BACKGROUND: It is a common opinion that expansion and darkening in melanocytic nevi may occur during pregnancy. The main problem is that whether it is a usual finding, or it is a condition that requires suspicion about melanoma. OBJECTIVES: It was aimed to find the changes that might occur in ...
Cannie Mieke - - 2007
PURPOSE: Although fetal kidneys have only 10% of their postnatal blood flow, fetal renal development is essential for normal postnatal function. In addition, to our knowledge it is unknown whether human fetal kidney development follows a linear or exponential evolution. We created normative magnetic resonance imaging curves for the kidney ...
Varelas Fotios K - - 2008
OBJECTIVES: To investigate embryonic heart rate (EHR) and yolk sac diameter (YSD) during the first trimester and their role as prognostic markers of first trimester pregnancy outcome. STUDY DESIGN: Prospective cohort study involving 219 women conducted in the 4th Academic Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Greece. ...
Araujo Júnior Edward - - 2007
OBJECTIVE: To verify the correlation of fetal cerebellar volume by three-dimensional ultrasound (3D US) with other indices of fetal growth in normal fetuses. METHODS: This was a longitudinal prospective study involving 52 normal pregnant women between 20 and 32 weeks of gestation. The assessments of the fetal cerebellar volume were ...
Stads Susanne - - 2007
Since impaired gallbladder emptying contributes to gallstone formation, the evaluation of gallbladder motility requires accurate methodology. Recently developed 3-dimensional ultrasonography may take into account various gallbladder shapes more accurately than conventional 2-dimensional ultrasonography. Therefore, volumes of water-filled balloons of various sizes were determined in vitro by 2-dimensional ultrasonography with the ...
Santolaya-Forgas Joaquin - - 2007
The objective of this study was to determine if very early ultrasonographic measurements obtained from human and baboon are comparable. For this purpose, the gestational, amniotic and yolk sacs, embryonic crown rump length (CRL) and heart rate were measured ultrasonographically between 35 and 47 days from the mean day of ...
Hobbs Kyle - - 2007
BACKGROUND: Despite evidence of possible abnormalities during fetal development, no study to date has attempted to investigate fetal brain growth in autism. Fetal head circumference (HC) and biparietal diameter (BPD) are highly correlated with fetal brain volume and are measured on fetal ultrasounds. METHODS: We used retrospective fetal ultrasound data ...
Lenard Z M - - 2007
Different sonographic criteria have been developed to estimate canine fetal age, including fetal mensuration and assessment of fetal organ development. This retrospective study assessed the accuracy of gestational age and litter size predictions in 76 bitches using one of two techniques. The first method used the differential features of fetal ...
Cho J Y - - 2007
OBJECTIVE: To present the normative data of the transverse diameter of the developing fetal thymus. METHODS: In this prospective study, the maximum transverse diameter of the thymus was measured by one sonologist in 376 normal fetuses between 19 and 38 weeks of gestation. We assessed the relationship of the transverse ...
Jung Sung Il - - 2007
OBJECTIVE: To construct new reference charts and equations for fetal biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC) and femur diaphysis length (FDL) from Korean fetuses at 12-40 weeks. METHOD: Prospective cross-sectional data obtained in one center for 5 years from a population of pregnant women undergoing ultrasound examination ...
Szpinda M - - 2007
The present study was performed on 128 spontaneously aborted human foetuses aged 15-34 weeks in order to establish normal values for thoracic aorta dimensions at various gestational ages. Using anatomical dissection, digital-image analysis (the Leica QWin Pro 16 system) and statistical analysis (ANOVA, regression analysis) the growth of the length, ...
Fadl Ahmed - - 2007
For this article, we studied the effects of mouthpiece diameter and flow rate on aerosol penetration efficiency for metered-dose inhaler (MDI) applications. Measurements show that increasing the mouthpiece diameter has a moderate and positive influence on the particle penetration efficiency of the MDI. The particle penetration efficiency increases monotonically with ...
Romano-Riquer S Patricia - - 2007
Development of the perineum as well as the external genitalia is determined by dihydrotestosterone, resulting in a greater anogenital distance (AGD) in males than females. In animal experiments with hormonally active agents, anogenital distance is used as a bioassay of fetal androgen action. Use of anogenital distance in human studies ...
Ali A - - 2008
The aim of the current study was to establish ultrasonic biometric threshold of different fetal parts in buffaloes and to evaluate the feasibility and accuracy of ultrasonic fetal sex determination. Serial ultrasonographic examinations were carried out on twelve pregnant buffalo-cows, during which fetal parts were measured, and fetal sex and ...
Dhammi Ish K - - 2007
Congenital diastasis of the inferior tibiofibular joint is a rare condition of unknown etiology, first described in 1972. Although its clinical presentation at birth is a talipes equinovarus deformity of the foot, it may be associated with limb length discrepancy and other skeletal and visceral abnormalities. We present one such ...
Mittal Pooja - - 2007
OBJECTIVE: Evaluation of fetal cerebral cortex sulcation is important for the pre-natal diagnosis of neuronal migration disorders. Although abnormal sylvian fissure morphologic features are frequently observed in these conditions, the diagnosis of an abnormal sylvian fissure relies on subjective interpretation of ultrasonographic images. This study was performed to develop an ...
Jaddoe Vincent W V - - 2007
The authors examined the associations of maternal smoking in pregnancy with various fetal growth characteristics among 7,098 pregnant women participating in the Generation R Study (2002-2006), a population-based prospective cohort study of pregnant women and their children in Rotterdam, the Netherlands. Maternal smoking was assessed by questionnaires administered in early, ...
Hildebrandt Thomas - - 2007
Elephants have the longest pregnancy of all mammals, with an average gestation of around 660 days, so their embryonic and foetal development have always been of special interest. Hitherto, it has only been possible to estimate foetal ages from theoretical calculations based on foetal mass. The recent development of sophisticated ...
Togni F A - - 2007
OBJECTIVE: To determine the normal cross-sectional areas of the umbilical vein, umbilical artery, and Wharton jelly in healthy pregnancies, and correlate the obtained values with fetal anthropometric parameters. METHODS: A cross-sectional study was performed with 312 women between the 24th and 39th weeks of a normal pregnancy. The cross-sectional areas ...
Maymon Ron - - 2007
Ultrasonography (US) is an accurate method with reproducible results for calculating splenic dimensions. Standards of normal spleen sizes have been developed for the general adult population, for children, and even for tall healthy athletes, thereby enabling US diagnosis of splenomegaly. Extrapolation of data from the normal population to pregnant women ...
Chen Min - - 2007
OBJECTIVES: To establish reference ranges for fetal limb biometry obtained by transabdominal ultrasound examination at 12-14 weeks of gestation in Chinese women. METHODS: A total of 1489 normal singleton fetuses between 12(+0) and 14(+6) weeks of gestation were examined transabdominally by two experienced observers. The gestation was ascertained by measurement ...
Schluter P J - - 2007
The purpose of this paper was to construct population-specific charts of gestational age (GA) from antenatal ultrasound biometry assessment using a large sample of normal Australian pregnancies when examination was carried out to a standard protocol by experienced operators. All consenting eligible women attending a large Brisbane clinic between January ...
Wendland Eliana M D R - - 2007
The aim of this study is to evaluate the diagnostic properties of waist circumference in the prediction of obesity-related gestational outcomes. Pregnant women 20 years or older were consecutively enrolled in six Brazilian State capitals from 1991 to 1995. Weight, height, and waist circumference were measured and an oral glucose ...
Togni Fernando Alves - - 2007
OBJECTIVE: To establish reference values for the sonographic cross-sectional area of the umbilical cord during gestation and to correlate them with fetal anthropometric parameters. METHODS: A cross-sectional study was performed involving 312 normal pregnant women at gestational ages 24-39 weeks. Measurement of the cross-sectional area of umbilical cord was performed ...
Koktener Asli - - 2007
OBJECTIVE: The purpose of this study was to evaluate cisterna magna size of the fetuses between 16 and 24 weeks of gestation, and to establish a normogram for cisterna magna measurements during gestation. METHODS: A prospective study of normal singleton pregnancies was established. Measurement of the fetal cisterna magna was ...
De Reu Paul - - 2007
OBJECTIVES: To determine fetal growth in low risk pregnancies at the beginning of the third trimester and to assess the relative importance of fetal gender and maternal parity. SETTING: Dutch primary care midwifery practice. STUDY DESIGN: Retrospective cohort study on 3641 singleton pregnancies seen at a primary care midwifery center ...
Sherer D M - - 2007
OBJECTIVE: The widely applied transcerebellar diameter (TCD) obtained at axial cranial imaging, measures the distance between the lateral aspects of the cerebellum and incorporates the width of the cerebellar vermis. Our objective was to create reference ranges of axial fetal cerebellar hemisphere circumference (CHC) and area (CHA), independent of the ...
Bergman Eva - - 2007
BACKGROUND: Antenatal identification of infants small for gestational age (SGA) improves their perinatal outcome. Repeated measurement of symphysis-fundus (SF) heights performed by midwives is the most widespread screening method for detection of SGA. However, the inefficiency of this method necessitates improved practices. Earlier start and more frequent SF measurements, which ...
Szpinda Michał - - 2007
During prenatal life, the ductus arteriosus connects the left pulmonary artery and the descending aorta. Morphometric features (length, external diameter, volume) of the ductus arteriosus in 131 human fetuses (65 males, 66 females) were studied by means of anatomical, digital and statistical methods. Regression analysis was used to investigate the ...
Asher G W - - 2007
The red deer (Cervus elaphus) of European origin (e.g. subspecies scoticus, hispanicus, hippelaphus) is a medium sized (100-150kg mature hind weight) ruminant that exhibits highly seasonally patterns of autumn conceptions and summer births. Historic data indicate average (+/- s.d.) gestation length of 233-234 (+/- 2-4) days. Recently, however, there has ...
Mirghani Hisham - - 2007
PURPOSE: To evaluate sonographic measurements of the fetal liver, fetal abdominal fat layer, interventricular septum, and Wharton's jelly area between 21 and 24 weeks' gestation in women with gestational diabetes mellitus (GDM). METHODS: A total of 123 consecutive healthy pregnant women underwent sonographic examination at 21-24 weeks' gestational age. The ...
Kalelio─člu I H - - 2007
PURPOSE OF INVESTIGATION: To compare the predictive values of different humeral shortness assessment methods in Down syndrome screening. METHODS: 674 high-risk singleton pregnancies with a valid last menstrual period (LMP) date were studied. Nomogram and formulas were derived from a subset of the studied group. Sensitivities of fifth percentile and ...
Maymon Ron - - 2006
This study aims to establish normal range of sonographically measured maternal spleen size throughout pregnancy. Currently, 288 healthy pregnant women between 6 and 42 weeks' gestation underwent ultrasonographic measurements of spleen length and width. The relationships between ultrasound measurements with prepregnancy body mass index (BMI) and gestational age were assessed ...
Roelfsema N M - - 2006
OBJECTIVE: To explore the various ways of obtaining fetal maxillary and mandibular size with three-dimensional (3D) ultrasound, with a view to developing a tool for identifying minor anomalies in the lower facial region. METHODS: Serial 3D sonographic measurements of the fetal jaws were made in 126 normal singleton pregnancies at ...
Leite Juliana - - 2006
OBJECTIVE: The aim of this study was to evaluate the outcome of pregnancies complicated by very large hematomas in the first trimester. METHODS: Between January 2001 and January 2006, 8085 patients between 5 and 14 weeks' gestation underwent routine first-trimester ultrasonographic examinations at our practice. Of these, 30 patients had ...
Beccaglia M - - 2006
OBJECTIVES: To compare the accuracy of two ultrasonographic measurements, inner chorionic cavity diameter and biparietal diameter, for the prediction of parturition date in small and medium size bitches. The effects of litter size and fetal sex ratio on the accuracy of the prediction were also investigated. METHODS: Ultrasonographic examinations were ...
Loetworawanit Ratchanikon - - 2006
OBJECTIVE: To evaluate the diagnostic value of sonographic measurement of fetal abdominal circumference (AC) for the prediction of fetal macrosomia. MATERIAL AND METHOD: A prospective clinical trial was conducted at Department of Obstetrics and Gynecology, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. The study consisted of 361 singleton pregnant women who ...
Cho Fu-Nan - - 2006
BACKGROUND: Accurate differentiation between normal pregnancy and pregnancy loss in early gestation remains a clinical challenge. AIMS: To determine whether ultrasound findings of yolk sac size and morphology are valuable in relation to pregnancy loss at six to ten weeks gestation. METHODS: Transvaginal ultrasonography was performed in 111 normal singleton ...
Nahum Gerard G - - 2007
OBJECTIVE: To improve the prediction of birth weight and fetal macrosomia by combining sonographically derived fetal biometric data with routinely recorded pregnancy-specific information. STUDY DESIGN: Retrospective data were obtained for 218 normal gravidas who had obstetrical ultrasonography performed within 11 weeks of delivery. Multiple regression was employed to derive a ...
Lee W - - 2006
OBJECTIVE: Our main objective was to determine the value of three-dimensional ultrasonography (3DUS) and Virtual Organ Computer-aided AnaLysis (VOCAL) in the evaluation of gestational sac volume and morphology during early pregnancy. METHODS: Twenty-eight normal early pregnancies were scanned approximately every 2 weeks using transabdominal (TAS) and transvaginal (TVS) sonography. The ...
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