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pairs of B-challenge concepts and families with prenatal and postnatal care, with the standard of living and cultural qualities of do not segment elevation, it is constantly exploring how humans make healthier and more intelligent next-generation, rather than the survival rate of increase, people pay more attention to the quality of life. B-is the most widely used in obstetric examination means, the field of medicine, society, family, there are those waiting for Mom and Dad do prospective parents on the safety of the fetus were questioned. B-right fetus safe? B-conclusions reliable? Doctor explained that sometimes can not be fully satisfied with prospective parents, for some media specious argument, quasi-parental concerns can not be relieved, and some prospective parents, and even caught in a dilemma: not do it, afraid of the belly of the baby have problems; to do it, afraid of harm to unborn baby; more prospective parents are uncomfortable, B super-fetuses, especially the possibility of defects found, even if thunderstruck, fear, grief, complain, regret, and will fall into places the passage to go to them; in diagnosis can not completely determine the time, the prospective parents can be said to Day Break. In clinical work and health advice, such a situation not uncommon. To this end, I would like as much as possible a more comprehensive description of some of this knowledge is mainly aimed at expectant mothers during pregnancy may be done about the practical problems. ultra-credit in the medical field, B super-diagnosis of disease has achieved a lot, after 40 years of clinical practice and research, the application of B-more and more widely, in view of its harm to human health, but also more and more patients of all ages. Diagnosis of diseases in obstetrics and gynecology, B is more important the application of ultra-; particularly in obstetrics, it can visually display the embryo in the uterus the entire process of development, since the menopause until the fifth Monday the entire clinical pregnancy, ultrasound can be significantly as an effective diagnosis, to obtain fetal heart rate, fetal movement information earlier than other tests, not only confirmed the basis of pregnancy, and can identify whether the embryo to survive, middle and late pregnancy, growth and development of the information available for some fetal malformations and placenta abnormal shape and position, can make diagnostic ultrasound, color Doppler ultrasound can detect fetal umbilical artery, fetal renal artery in vivo, cerebral arteries and other major vascular blood flow parameters to assess the function of the placenta, fetal whether there is intrauterine hypoxia asphyxia, etc.. involved in the development of ultrasound, so that first trimester villi of the draw, the umbilical cord and amniotic fluid puncture location is more safe and reliable. Ultrasound imaging has become an indispensable obstetric clinical practice one of the means. Almost every pregnant women have experienced a B-ultrasonic examination.
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