نتایج جستجو برای: biparietal diameter
تعداد نتایج: 111959 فیلتر نتایج به سال:
BACKGROUND Over the past decade there has been mounting evidence that ambient air pollution during pregnancy influences fetal growth. OBJECTIVES This study was designed to examine possible associations between fetal ultrasonic measurements collected from 15,623 scans (13-26 weeks gestation) and ambient air pollution during early pregnancy. METHODS We calculated mothers' average monthly expo...
BACKGROUND In 2006, WHO produced international growth standards for infants and children up to age 5 years on the basis of recommendations from a WHO expert committee. Using the same methods and conceptual approach, the Fetal Growth Longitudinal Study (FGLS), part of the INTERGROWTH-21(st) Project, aimed to develop international growth and size standards for fetuses. METHODS The multicentre, ...
(1) Objective: We aimed to evaluate the accuracy and efficacy of AI-assisted biometric measurements fetal central nervous system (CNS) by comparing two semiautomatic postprocessing tools. further discuss additional value semiautomatically generated sagittal coronal planes CNS. (2) Methods: Three-dimensional (3D) volumes were analyzed with software tools, 5DCNS+™ SonoCNS™. The application result...
Objective: To present the reference range of fetal thymus gland according to gestational age groups. Methods: In this prospective study, size was assessed in singleton, uncomplicated pregnancies between 19 and 38 weeks gestation our outpatient clinic 2019 2020. Based on their monthly pregnancy follow-ups, measurement divided into 5 groups (Group 1: 19–22 weeks, Group 2: 23–26 3: 27–30 4: 31–34 ...
OBJECTIVES Ultrasound examination of the fetus is a powerful tool for assessing gestational age and detecting obstetric problems but is rarely available in developing countries. The aim of this study was to assess the intraobserver and interobserver agreement of fetal biometry by locally trained health workers in a refugee camp on the Thai-Burmese border. METHODS One expatriate doctor and fou...
BACKGROUND Non-invasive micro-ultrasound was evaluated as a method to quantify intrauterine growth phenotypes in mice. Improved methods are required to accelerate research using genetically-altered mice to investigate the interactive roles of genes and environments on embryonic and placental growth. We determined (1) feasible age ranges for measuring specific variables, (2) normative growth cur...
Symptoms of visuospatial neglect occur frequently after unilateral brain damage. Neglect hampers rehabilitation progress and is associated with reduced quality of life. However, existing treatment methods show limited efficacy. Transcranial direct current stimulation (tDCS) is a neuromodulatory technique, which can be used to increase or decrease brain excitability. Its combination with convent...
AIM To investigate the toxic effects of mid-pregnancy cocaine exposure on embryo-fetus. METHODS A transplacental murine model of cocaine exposure on embryo-fetus mice was established, in which pregnant dams of comparable weight were assigned into three groups: cocaine with food ad lib (COC), saline and pair-fed with COC (SPF), and saline with food ad lib (SAL). From embryonic d 8 (E8) to E17,...
BACKGROUND The aim of this study was to determine the effect of Ramadan fasting on fetal growth and Doppler in-dices of pregnancy. METHODS Fifty two healthy pregnant women of second or third trimester, 25 in fasting group and 27 in non fasting group were included. Growth parameters including biparietal diameter (BPD), femoral length (FL), abdominal circumference (AC), estimated fetal weight, ...
TERRY J. DUBOSE, MS, RDMS, The fetal head is three dimensional (3D). As 3D sonography becomes a clinical reality, there is a need to describe standard biometric parameters by which the head shape, proportions, and volumes may be measured and analyzed. This particular study presents measurements and methods that are applicable to newer 3D imaging systems. These measurements will provide consiste...
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