First-Trimester Detection of Surface Abnormalities
نویسندگان
چکیده
منابع مشابه
First-trimester screening for chromosomal abnormalities.
There is extensive evidence that effective screening for major chromosomal abnormalities can be provided in the first trimester of pregnancy. Randomized studies have established that the risk of miscarriage from chorionic villus sampling in the first trimester is the same as for amniocentesis in the second trimester. Prospective studies have demonstrated that screening by a combination of fetal...
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The Nuchal Translucency thickness measurement is made to identify the Down Syndrome in screening first trimester fetus and presented in this paper. The mean shift analysis and canny operators are utilized for segmenting the nuchal translucency region and the exact thickness has been estimated using Blob analysis. It is observed from the results that the fetus in the 14th week of Gestation is ex...
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First-trimester (FT) ultrasound examination appears to have a very good sensitivity in the detection of fetal abnormalities, especially when an extended protocol that is achievable with reasonable resources of time, personnel and ultrasound equipment, is used. It has been shown that the efficiency of the routine anomaly scan varies widely between the studies performed both in early or mid-pregn...
متن کاملChromosomal abnormalities in couples with recurrent first trimester abortions.
PURPOSE To investigate the prevalence of chromosomal abnormalities in couples with two or more recurrent first trimester miscarriages of unknown cause. METHODS The study was conducted on 151 women and 94 partners who had an obstetrical history of two or more consecutive first trimester abortions (1-12 weeks of gestation). The controls were 100 healthy women without a history of pregnancy loss...
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Improvement in ultrasound technology, including transvaginalsonography and higher frequency probes, has led to a better understanding of early pregnancy development. The first trimester ultrasound have been identified that can be used to reassure women that their pregnancy is progressing normally or abnormal them that their pregnancy will fail. The practicing radiologist and obstetrician must b...
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ژورنال
عنوان ژورنال: Reproductive Sciences
سال: 2014
ISSN: 1933-7191,1933-7205
DOI: 10.1177/1933719113519172