Search Results
Results 301 - 350 of 1232
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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 ...
Karki Dan Bahadur - - 2006
This is the prospective study carried out to correlate gestational age by sonographic measurements of fetal parameters by normograms of Frank P Hadlock with the gestational age by Last Menstrual Period (LMP) (considered our standard) in various trimesters of normal pregnant women of eastern Nepal. Seventy normal pregnant women with ...
Olesen A W - - 2006
OBJECTIVE: To compare the dates of delivery predicted by last menstrual period (LMP), crown-rump length (CRL) and biparietal diameter (BPD) with the actual date of delivery in a population of pregnant women divided into those with certain and those with uncertain LMP. METHODS: Healthy women were enrolled at the first ...
DiPietro J A - - 2006
OBJECTIVE: To determine whether an isolated finding of a choroid plexus cyst (CPC) during routine ultrasound is associated with altered fetal growth or development. STUDY DESIGN: Prospective, case-control study comparing 35 CPC cases to 67 controls. Neurobehavioral development assessment included 50 min long serial recordings of heart rate, motor activity ...
Vimercati Antonella - - 2006
OBJECTIVES: Freeman-Sheldon syndrome (FSS) is a rare genetic condition with facial and joint abnormalities. Here we report the first case of prenatal diagnosis in a fetus with negative familial history for this syndrome. A chart of the fetal mouth length was generated and its usefulness verified. METHODS: A cross-sectional study ...
Chen Min - - 2006
OBJECTIVES: Absence of the nasal bone in fetuses with trisomy 21 is a potential ultrasound marker for Down syndrome from the first trimester onwards. Racial differences in fetal nasal bone length have been reported. There was no reference range for the first-trimester fetal nasal bone length (NBL) in the Chinese ...
Kanagawa Takeshi - - 2006
AIM: We carried out a preliminary study to compare the nasal bone length (NBL) and biparietal diameter/NBL (BPD/NBL) ratio between the Japanese and white populations. METHODS: Three hundred and fifty nine (359) singleton fetuses of healthy Japanese couples were examined from June 2004 to October 2005. NBL was measured by ...
Butler Erin E - - 2006
OBJECTIVE: The purpose of this study was to determine whether there are changes in postural equilibrium during pregnancy and to examine whether the incidence of falls increases during pregnancy. STUDY DESIGN: Static postural balance measures were collected from 12 pregnant women at 11 to 14, 19 to 22, and 36 ...
Awadh A M A - - 2006
OBJECTIVE: To assess the variability of fetal heart and thoracic area and circumference measurements using the ellipse and diameter methods at different gestational ages. DESIGN: This was a prospective cross-sectional study of 200 singleton pregnancies, with no apparent fetal abnormalities. The gestational age ranged between 19 and 42 weeks. At ...
Patchakapat Lawan - - 2006
OBJECTIVE: To establish the normal value of fetal InterVentricular Septal Thickness (IVST) from 32 to 35 weeks' gestation in Thai fetuses. MATERIAL AND METHOD: Thai pregnant women with normal fetuses were recruited for prenatal 2-dimensional M-mode echocardiographic measurements of fetal IVST at 32 to 35 weeks' gestation. All had a ...
Pickhardt Perry J - - 2006
OBJECTIVE: Proposed surveillance of unresected medium-sized (6.0-9.9 mm) polyps will require reliable detection of small incremental changes. The purpose of this study was to assess the reproducibility of linear versus volume measurements of polyp size at CT colonography (CTC) and to correlate results with a hemispheric model. MATERIALS AND METHODS: ...
Elliott Dawn - - 2006
OBJECTIVE: To determine which fetal growth curve provided the best estimates of fetal weight for a cohort of ethnically diverse patients at sea level. METHODS: The study consisted of a population of 1,729 fetuses examined at sea level between January 1, 1997, and June 30, 2000, at 18 weeks, 28 ...
Moon Min Hoan - - 2006
OBJECTIVES: The aim of this study was to provide reference values for nasal bone length (NBL) scanned at 11-14 weeks' gestation in the Korean population and compare these values with those of the Caucasian and African-American populations. METHODS: From April 2004 to July 2004, fetal NBLs were measured in well-dated, ...
Zambelli D - - 2006
In the present paper, we describe the clinical utility of ultrasonography for diagnosing and evaluating pregnancy in domestic cats. Ultrasonography is a non-invasive technique that permits an accurate diagnosis of pregnancy and allows serial evaluation of the developing embryo/fetus and the extrafetal structures. The first ultrasonographic indication of pregnancy is ...
Shin Joong Sik - - 2006
OBJECTIVE: To evaluate the relation between fetal nasal bone length (NBL) and biparietal diameter (BPD) at 15-19.9 (20) weeks of gestation by ultrasonography in the Korean population. METHODS: The study population included 1268 Korean women (aged between 19 and 45 years) with a singleton pregnancy who registered at the Maternal ...
Malik Ghazala - - 2006
OBJECTIVE: To assess the usefulness of transverse cerebellar diameter (TCD) as an independent parameter for gestational age assessment in third trimester of pregnancy. DESIGN: An observational study. Place and Duration of Study: Diagnostic Radiology Department, PNS Shifa, Karachi between April 2002 to July 2004. PATIENTS AND METHODS: This study was ...
Karki D B - - 2006
Estimation of the gestational age by sonographic measurements of fetal parameters is usually done by measuring mean sac diameter (MSD), Crown-rump length (CRL), biparietal diameter (BPD), head circumference (HC), femoral length (FL) and abdominal circumference (AC) depending on the trimester of pregnancy. This is a prospective study to see the ...
Rasmussen Svein - - 2006
OBJECTIVE: To determine whether proportionate or disproportionate foetal smallness at 17 to 19 weeks of gestation in low-risk pregnancies was associated with size, body constitution, and adverse outcome at birth. METHODS: We included ultrasound measurements at 17-19 weeks of gestation in 7285 uncomplicated pregnancies with reliable information on last menstrual ...
Sherer D M - - 2006
OBJECTIVE: To create a nomogram of fetal clavicle length (CL) throughout gestation. METHODS: Cross-sectional study of patients between 14 and 42 weeks' gestation. Inclusion criteria consisted of well-established dates (consistent with early ultrasound), singleton, non-anomalous fetuses, and intact amniotic membranes. Sonographic measurements included biparietal diameter (BPD), head circumference (HC), abdominal ...
Piqué-Vidal Carlos - - 2006
The objective of this study was to compare angular measurements in the evaluation of hallux valgus deformities using a goniometer and a computerized program to assess degree of concordance between the two methods and determine the reliability of manual measurements. Angles measured included the hallux valgus angle (HVA), the intermetatarsal ...
Zalel Yaron - - 2006
OBJECTIVE: To construct a growth chart of the mandible throughout gestation. METHODS: A prospective cross-sectional study of normal singleton pregnancies was conducted. Measurements of the fetal mandibular transverse and antero-posterior diameters were performed with high-resolution transvaginal and transabdominal ultrasonography in 490 pregnant women with singleton low-risk pregnancies between 11 and ...
Smrcek Jan Michael - - 2006
OBJECTIVE: The purpose of this prospective cross-sectional study was to compile normative data about biometry of the fetal heart and great vessels between 10 and 15 weeks in 123 normal singleton pregnancies. Additionally, we investigated the different methods and the optimal examination time of early fetal echocardiography. METHODS: The interrogated ...
Bourry Olivier - - 2006
BACKGROUND: Nonhuman primates are raised in large numbers in research centers and zoos. Reproductive monitoring is required to improve breeding performances. Ultrasonography is a safe method to determine gestational age and to estimate the date of parturition. However only few data are available in nonhuman primates. METHODS: Fetal biometric data ...
Solerte Laura - - 2006
A rare dysmorphologic fetal anomaly at the 17th week of gestation was suspected during a second trimester routine scan for fetal and maternal screening data. First findings were significant for a severe abdominal wall defect, limb and foot compromised positions. Fetal biometry was appropriate in biparietal diameter and head circumference ...
Luvoni G C - - 2006
In bitches, the length of gestation is highly variable when measured from the day of mating, thus prediction of parturition may be greatly inaccurate when determined from this point. The ability to precisely predict the duration of pregnancy is of practical importance for managing parturition or planning caesarean section and ...
Howell Dickon - - 2006
Surface roughness (SR) can affect the hydrodynamic performance of antifouling (AF) coatings and influence the settlement behaviour of fouling larvae, which makes it an important parameter in the evaluation of novel coatings. This paper reviews the causes and consequences of SR in the shipping industry, the methodology used for measuring ...
Guariglia Lorenzo - - 2006
OBJECTIVE: In this study, cardiac circumference (CC), measured by transvaginal sonography, was analyzed to determine the growth during the early stage of pregnancy and its relationship to abdominal circumference and femur length (FL). METHODS: Biometric measurements, including CC, were obtained in 1,182 euploid fetuses at 9-16 weeks' gestation. The CC ...
Ahlborg Liv - - 2006
BACKGROUND: The objective was to study fetal growth parameters in in vitro fertilization (IVF) pregnancies and to investigate the relationship between fetal growth and maternal blood pressure. METHODS: We examined 64 women, pregnant after in vitro fertilization, with repeated ultrasound examinations measuring biparietal diameter, femur length, abdominal diameter and fetal ...
Backe Bjørn - - 2006
BACKGROUND: In Norway, routine ultrasound examination with assessment of gestational age was included in the standard antenatal care program in 1985. Until presently, a dating chart introduced in 1983 has been used throughout the country. New national normal values are now developed. The aim of the study was to compare ...
Johnsen Synnøve Lian - - 2006
AIMS: Previous studies suggested that head circumference (HC) predicts the date of confinement better than the biparietal diameter (BPD). The present study aimed to prospectively test this assumption. METHODS: A prospective study including 4179 consecutive women attending the second trimester routine ultrasound examination at 17-20 weeks of gestation. Outer-outer BPD ...
Salomon L J - - 2005
OBJECTIVES: To develop and evaluate the feasibility of Z-score distribution-based quality assessment for fetal biometry at 20-24 gestational weeks. METHODS: Four sonographers measured fetal biparietal diameter, head circumference, abdominal circumference and femur length in unselected pregnancies undergoing routine sonography at 20-24 weeks in our center between June 2001 and January ...
Li J P - - 2005
3D porous Ti6Al4V scaffolds were successfully directly fabricated by a rapid prototyping technology: 3D fibre deposition. In this study, the rheological properties of Ti6Al4V slurry was studied and the flow rate was analyzed at various pressures and nozzle diameters. Scaffolds with different fibre diameter and porosity were fabricated. ESEM observation ...
Chawanpaiboon Saifon - - 2005
AIM: To create reference centile charts for liver length, spleen perimeter and umbilical vein maximum flow velocity (UVVmax) in Thai fetuses in order to predict fetal anemia in Thai fetuses. METHODS: The study was a prospective, cross-sectional study, carried out at the Division of Maternal-Fetal Medicine, Department of Obstetrics and ...
Johnsen Synnøve Lian - - 2006
OBJECTIVES: The aims of the present study were to establish improved reference charts for growth of the fetal head, abdomen and femur, and to determine the effect of fetal and maternal factors. STUDY DESIGN: This prospective longitudinal study included 650 low-risk pregnancies. Outer-outer biparietal diameter (BPD), head circumference (HC), mean ...
Kedzia Alicja - - 2005
BACKGROUND: Because of numerous abnormalities of craniovertebraljunction development observed in the prenatal period, the region has been studied thoroughly in order to elucidate the mechanism of axial differentiation, dependence of vertebral morphology on the development of ossification centers and the mechanisms regulating the dynamics of growth. AIM: Analysis of morphological ...
Ivanisević Marina - - 2006
BACKGROUND/AIMS: In pregnancy complicated with type-1 diabetes mellitus (DM), information on the predictive value of yolk sac (YS) measurement and YS morphology on outcome has been scant. The aim of this study was to compare the size and shape of the YS using transvaginal sonography (TVS) in normal pregnancies and ...
Donne Helio Delle HD - - 2005
PURPOSE: This study was conducted to verify the predictive value of epiphyseal ossification center measurements in estimating gestational age. METHODS: Women with singleton pregnancies of 30-40 weeks gestation (n = 377) were enrolled in this prospective study. The distal femoral, proximal tibial, and proximal humeral ossification centers were identified and ...
Weladji Robert B - - 2005
We analysed intercohort variability of live weight and antler length of 5,123 reindeer calves. We further assessed the influence of climate and density on the interannual variation in antler length, and discussed sex-specific resource allocation and response to climate variability. Antler length varied significantly among years and between sexes, with ...
Sladkevicius P - - 2005
OBJECTIVES: To determine the accuracy of established ultrasound dating formulae when used at 12-14 weeks of gestation. METHODS: One-hundred and sixty-seven singleton pregnancies conceived after in-vitro fertilization (IVF) underwent a dating scan at 12-14 weeks of gestation. Gestational age at the dating scan was calculated by adding 14 days to ...
Mirghani Hisham M - - 2005
AIM: To compare the accuracy of eight sonographic formulae for predicting fetal birth weight at term in a multiethnic population. METHODS: Pregnant women at term who were booked for induction of labor or elective cesarean section were included in the study. Eight ultrasonic fetal biometric formulae were used to predict ...
Falcon O - - 2005
OBJECTIVE: To establish the relationship between fetal trunk and head volume measured by three-dimensional (3D) ultrasound and gestational age at 11 + 0 to 13 + 6 weeks of gestation. METHODS: The fetal trunk and head volume were measured using 3D ultrasound in 417 chromosomally normal fetuses from singleton pregnancies ...
Santiago-Moreno J - - 2005
Serial transrectal ultrasonographies were performed measuring different structures of mouflon (Ovis gmelini musimon) fetuses to establish their gestational age. Data were obtained from 14 mouflon ewes that became pregnant after estrous synchronization. From day 25 of gestation onward, the crown-rump length and the trunk diameter of the embryo were estimated. ...
Goldstein Israel - - 2005
OBJECTIVE: The aim of this study was to define normal ultrasonographic growth of the fetal maxillary bone throughout pregnancy as a basis for further studies and as normative data for assessing deviations in growth. METHODS: A prospective cross-sectional study was performed. Consecutive routine biometric measurements and fetal organ scans were ...
Nakling Jakob - - 2005
OBJECTIVE: In a large unselected population of normal spontaneous pregnancies, to estimate the biologic variation of the interval from the first day of the last menstrual period to start of pregnancy, and the biologic variation of gestational length to delivery; and to estimate the random error of routine ultrasound assessment ...
Merialdi M - - 2005
OBJECTIVES: To compare fetal biometry measurements obtained in a Peruvian population with reference fetal size charts obtained in Peruvian and non-Peruvian populations. METHODS: Fetal biometry measurements collected prospectively in 195 uncomplicated pregnancies were included in the presented analysis. At 20, 24, 28, 32, 36 and 38 weeks' gestation, fetal head ...
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