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- W2131431415 abstract "ABSTRACT The first trimester, mostly defined as the first 100 days of pregnancy, is characterized by many important landmarks heralding the ultimate outcome of pregnancy. Woman becomes aware of her pregnancy after missing her period, being already two weeks postconception at that time. A positive pregnancy test opens Pandora's Box, raising more questions than giving answers. Although a positive pregnancy test most likely suggests an intrauterine pregnancy, production of human chorionic gonadotropin (hCG) occurs as well in tumors (dysgerminoma, choriocarcinoma) or maldeveloped pregnancies, such as ectopic pregnancy, blighted ovum or mola hydatidosa. Other early pregnancy complications and failures, like subchorionic hematoma, missed abortion, incomplete miscarriage, retained products of conception, are likely to be accompanied by clinical symptoms such as lower abdominal pain and/or vaginal bleeding, and suboptimal beta hCG serum levels. Transvaginal ultrasound probes with frequencies of up to 14 MHz have lowered the threshold for US-detection of intrauterine pregnancy to 1200 mIu/ml beta hCG/serum (discriminatory zone), and enable identification of all above-mentioned 1st trimester pregnancy disorders earlier than ever before. Furthermore, the additional interrogation of the region of interest (ROI) with color Doppler (CD) and pulsed-wave Doppler (PW) supplies important information about characteristics of vascularization and flow indices, which assists in further differentiation and prognosis of abnormal early pregnancy findings. With the introduction of transvaginal three-dimensional (3D) sonography, and real-time 3D ultrasound (4D), in vivo studies of the early fetal life became possible. The developmental progress of the embryo and early fetus, its anatomy, and first movement patterns, have been explored by means of ultrasonic 3- and 4D imaging, which can be considered as nonteratogenic as long as investigators adhere to certain safety rules. The new field of sonoembryology has emerged, and researchers are penetrating the mists hiding the beginning of human life. Another area of remarkable expansion has been the 1st trimester scan between 11 and 13/6 weeks of gestation. It includes not only the early diagnose of fetal structural anomalies, like acranius-anencephalus sequence, and the screening for fetal aneuploidies such as trisomia 21,18 and 13, but also offers likelihood ratios for hypertensive pregnancy disorders (pre-eclampsia) and intrauterine growth restriction (IUGR)." @default.
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- W2131431415 date "2011-01-01" @default.
- W2131431415 modified "2023-09-27" @default.
- W2131431415 title "Normal and Abnormal Early Pregnancy" @default.
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- W2131431415 cites W1852534842 @default.
- W2131431415 cites W1966050892 @default.
- W2131431415 cites W1967213528 @default.
- W2131431415 cites W1968275526 @default.
- W2131431415 cites W1968701362 @default.
- W2131431415 cites W1974205177 @default.
- W2131431415 cites W1974747953 @default.
- W2131431415 cites W1976062431 @default.
- W2131431415 cites W1977299945 @default.
- W2131431415 cites W1978895019 @default.
- W2131431415 cites W1979746714 @default.
- W2131431415 cites W1981148217 @default.
- W2131431415 cites W1983687348 @default.
- W2131431415 cites W1990795537 @default.
- W2131431415 cites W1999682632 @default.
- W2131431415 cites W2000387159 @default.
- W2131431415 cites W2010387852 @default.
- W2131431415 cites W2015654565 @default.
- W2131431415 cites W2018990189 @default.
- W2131431415 cites W2023986260 @default.
- W2131431415 cites W2026122500 @default.
- W2131431415 cites W2030556418 @default.
- W2131431415 cites W2032175858 @default.
- W2131431415 cites W2033085405 @default.
- W2131431415 cites W2035711524 @default.
- W2131431415 cites W2035756780 @default.
- W2131431415 cites W2040308801 @default.
- W2131431415 cites W2041684884 @default.
- W2131431415 cites W2044296082 @default.
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- W2131431415 cites W2048996841 @default.
- W2131431415 cites W2052365699 @default.
- W2131431415 cites W2054992968 @default.
- W2131431415 cites W2056484364 @default.
- W2131431415 cites W2061636214 @default.
- W2131431415 cites W2066392845 @default.
- W2131431415 cites W2067733911 @default.
- W2131431415 cites W2068746798 @default.
- W2131431415 cites W2068773931 @default.
- W2131431415 cites W2071896574 @default.
- W2131431415 cites W2073474048 @default.
- W2131431415 cites W2078163777 @default.
- W2131431415 cites W2078501056 @default.
- W2131431415 cites W2082478644 @default.
- W2131431415 cites W2083348727 @default.
- W2131431415 cites W2085713759 @default.
- W2131431415 cites W2094309285 @default.
- W2131431415 cites W2096476475 @default.
- W2131431415 cites W2102477866 @default.
- W2131431415 cites W2105759526 @default.
- W2131431415 cites W2111494213 @default.
- W2131431415 cites W2116806083 @default.
- W2131431415 cites W2117003820 @default.
- W2131431415 cites W2117885179 @default.
- W2131431415 cites W2129910825 @default.
- W2131431415 cites W2133359062 @default.
- W2131431415 cites W2140499985 @default.
- W2131431415 cites W2152827982 @default.
- W2131431415 cites W2156097273 @default.
- W2131431415 cites W2162775269 @default.
- W2131431415 cites W2169787596 @default.
- W2131431415 cites W2171113240 @default.
- W2131431415 cites W2171162078 @default.
- W2131431415 cites W2171413159 @default.
- W2131431415 cites W2275839294 @default.
- W2131431415 cites W2301718124 @default.
- W2131431415 cites W2336562485 @default.
- W2131431415 cites W2480512043 @default.
- W2131431415 cites W2495365480 @default.
- W2131431415 cites W2499425699 @default.
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- W2131431415 cites W37710132 @default.
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- W2131431415 doi "https://doi.org/10.5005/jp-journals-10009-1214" @default.
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