نتایج جستجو برای: rump length crl
تعداد نتایج: 308956 فیلتر نتایج به سال:
From early childhood, Turner syndrome patients have a flattened cranial base, maxillary retrognathism, and short hands. There are, however, no studies that show when these genotype-determined abnormalities occur prenatally. The purpose of the present study was to measure craniofacial profile and hand radiographs of second trimester foetuses with Turner syndrome and compare the results with simi...
BACKGROUND The correct definition of foetal age is a substantial problem in forensic medicine, gynaecology, obstetrics and anthropology. OBJECTIVES The goal of the study was the mathematical assessment of the foetal age with the use of thorax selected dimensions. MATERIAL AND METHODS The material consisted of 110 foetuses aged 4-7 months of foetal life, including 50 females in the CRL range...
There are morphological and reproductive physiological differences between swamp buffalo (Bubaluscarabanensis) and river buffalo (Bubalus bubalis). The development of fetus weight and fetus biometry wasreported in river buffalo and other animals but not in swamp buffalo. The aim of this study was to describethe inherent variability in fetus related measurements during swamp buffalo pregnancy. T...
OBJECTIVE To describe the first trimester diagnosis of agenesis of the corpus callosum (ACC). METHODS The midbrain and falx cerebri were examined in stored images of the midsagittal view of the fetal brain at 11(+0)-13(+6) weeks' gestation from 15 fetuses with ACC and 500 normal controls. The midbrain diameter and falx diameter were measured and their ratio was calculated. The values in fetus...
The growth pattern of the maxillary sinus was analyzed using 18 human fetuses of both sexes between 9 and 21 weeks of age postconception. The paraffin embedded specimens were cut in series in the frontal and the transversal plane, respectively. The inner surface of the maxillary sinuses was redrawn and surrounded with a digitizer and then the volumes were calculated. A correlation analysis as w...
OBJECTIVE To assess the value of ductus venosus pulsatility index for veins (DV PIV) in screening for aneuploidies at 11-13 weeks' gestation. METHODS Fetal DV PIV was measured in singleton pregnancies undergoing first-trimester screening for aneuploidies. In euploid (n = 44,756) and aneuploid (202 cases of trisomy 21, 72 cases of trisomy 18 and 30 cases of trisomy 13) fetuses, DV PIV was best...
Nonhuman primates are commonly used in cardiovascular research. Increased arterial stiffness is a marker of subclinical atherosclerosis and higher CV risk. We determined the augmentation index (AI) using applanation tonometry in 61 healthy monkeys (59% female, age 1-25 years). Technically adequate studies were obtained in all subjects and required 1.5 +/- 1.3 minutes. The brachial artery provid...
The development of the bone marrow of the thoracic vertebrae in seven human fetuses ranging from 95 to 150 mm in crown-rump length (CRL) was studied using light and electron microscopy. In the 95-mm CRL, hypertrophy of the chondrocytes occurred in the central region of the vertebrae, and blood vessels penetrated there from dorsal and ventral sides of the vertebral body. The primary marrow was r...
BACKGROUND Fetal nuchal translucency (NT) measurement is now widely used in many Western countries as a screening tool for Down's syndrome during the first trimester. However, at present there is no data on its use in Taiwan. The purpose of the present study was to evaluate the efficacy of NT measurement in first-trimester Down's syndrome screening in Taiwan. METHODS We conducted a prospectiv...
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 at 11 + 0 to 13 + 6 (median, 12 + 0) weeks of gestation. Regression analysis...
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