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Fields of Ultrasound Exams
Obstetric Gynecology Abdomen Fetal Echocardiography

Prenatal ultrasound (also called fetal ultrasound or fetal sonography) has become an almost automatic part of the childbirth process during visits to the obstetrician. It is estimated that up to 70% of women in the Egypt have prenatal ultrasound exams during pregnancy. Ultrasound is routinely used at 16 to 18 weeks to date the pregnancy and to check the development of the fetus that Loay 4D Scan Center support you with.

The tremendous feelings a mother has for her child growing inside her womb are impossible to describe. The experience is different, yet wonderful, for every mother. The sensation many mothers and fathers feel when they first glimpse live ultrasound images of their fetal babies brings a fascinating reality and a new dimension to the parental experience of pregnancy and childbirth.

  Fields of Ultrasound Exams

Benefits and Limitations of Prenatal Ultrasound
Modern obstetric medicine (for guiding pregnancy and childbirth) relies heavily on ultrasound to provide detailed images of the fetus and uterus. Ultrasound is an excellent exam for ruling out concerns. However, ultrasound is very operator-dependent. When an experienced physician uses advanced ultrasound equipment, the exam can provide detailed information on the fetus.

However, in some cases, prenatal ultrasound can miss some fetal abnormalities. On average, one third to one half of fetal structural birth defects are not detected with ultrasound. Less commonly, ultrasound can sometimes indicate a fetal abnormality when no abnormality is present, causing stress and worry among the parents. A number of studies have shown that ultrasound is most effective when performed by an experienced physician at a major medical center. When there is an increased risk of genetic or chromosomal birth defects, the physician may order additional testing, such as amniocentesis (sampling of the amniotic fluid around the fetus) or chorionic villus sampling (CVS; sampling the chorionic villi, small tissues that attach the pregnancy sac to the wall of the uterus) in addition to ultrasound imaging.

If ultrasound is needed very early during pregnancy, transvaginal ultrasound, rather than transabdominal ultrasound, is typically performed. Transvaginal ultrasound is performed by inserting a probe into the vagina. Early during pregnancy, the probe is able to get close to the uterus and is helpful in visualizing the fetus. As the pregnancy progresses, transabdominal ultrasound becomes more beneficial than transvaginal ultrasound.

How Prenatal Ultrasound is Performed
Transabdominal fetal ultrasound is usually a straightforward process that is quick and painless; a typical routine exam (Loay 4D Scan Center) takes approximately 15 to 20 minutes. The woman is usually examined while lying on her back with her belly exposed. First, a jelly-like solution is applied to the skin to help improve the contact between the ultrasound transducer and the skin, allowing clearer images of the fetus. The woman may also be asked to have a full bladder during the ultrasound exam to help with image clarity.

To perform the exam, the ultrasound technologist passes a hand-held transducer across the woman's belly. Inaudible, high frequency sound waves are emitted by the ultrasound transducer and as these sound waves pass into the body, they are reflected back at different strengths and frequencies by the different anatomic structures of both the mother and the fetus. The same transducer receives these reflected sound waves and a computer reconstructs them into real time images.

During the examination, the ultrasound "movie" can often be recorded to videotape or the movie can be frozen (similar to viewing a videotape in "freeze frame" mode) and a still image can be recorded onto paper or film. Typically, moving ultrasound images (images being acquired and displayed at multiple frames per second) give a much better appreciation of the structure of the fetus or other anatomy being imaged than a still image.

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