IMFH | Maternal-Fetal Services | Diagnostic Testing | Specialized Ultrasound
A Specialized Ultrasound Examination is similar to a standard ultrasound exam, but with a higher level of detail and attention paid to the baby’s anatomy. A Specialized Ultrasound allows the physician to look at the fetus from head to toe, checking for any irregularities in structure and anatomy, while assessing the baby’s growth and environment, including the placenta, umbilical cord and the amniotic fluid. The scanner, or ultrasound machine, allows the physician to visualize the fetus in real time by supplying a continuous picture derived from the measurement and interpretation of high frequency sound waves bounced off internal structures. The type of image depends upon the density of the structure, from bone to fluid. These sound waves cannot be heard by anyone, including the fetus. The sound waves are emitted from a transducer placed on the abdomen. The ultrasound beams project a picture on a screen, from which the anatomy is viewed and measurements can be taken.
A Specialized Ultrasound utilizes sophisticated imaging equipment and technology, offering a range of options and views for the most complete evaluation possible. There are many reasons that a specialized ultrasound might be recommended, including a questionable finding on a standard ultrasound exam, family history of a problem that might be detected by ultrasound, maternal age, medical conditions such as diabetes, or a test result from routine blood work that requires further evaluation. At the IMFH, ultrasound examinations are performed by a Perinatologist with expertise and experience in ultrasonography as well as training and certification in maternal and fetal medicine, including diagnosis and management of problems that might be encountered. Having a specialized ultrasound does not mean that there is necessarily anything wrong. It is a means to get more information and to be assured that all is well, or if not, that the proper care is available to ensure the best out come.
What is looked at in a Specialized Ultrasound
A specialized ultrasound begins with an overall view of the fetus, including position, placental location and measurements of the head, abdomen and extremities. These measurements are helpful in establishing gestational age and evaluating growth and development. Next, detailed examination of the fetal anatomy includes multiple views of the organs and structures, often utilizing 3-D or 4-D imaging technology, Doppler velocimetry, color-flow Doppler and color power angiography. Function is assessed as well as structure. A specialized ultrasound includes evaluation of the fetal skeletal system, circulatory system, spine, brain, face, heart, lungs, diaphragm, liver, stomach, adrenal glands, kidneys, intestines, bladder, gender, extremities, umbilical cord, placenta and amniotic fluid as well as the uterus and surrounding organs.
What to Expect
You will be asked to recline on an exam table, on your back to start, with your abdomen exposed. There is generally no need to undress, as moving clothing out of the way is sufficient to allow the transducer the access needed. There may be a wait between the time you are placed in the room and the time the physician arrives. The physician will place some gel on your abdomen. The gel is needed for the transducer to make the best contact with your skin, and to transmit the sound waves. The lights will be turned out, and a video screen will be available for you to view the ultrasound as it progresses. Structures will be pointed out, and views of your baby’s face, hands and feet will be seen. You may be asked to turn on your side if that improves visualization. In some instances, a transvaginal ultrasound may be necessary to obtain the most accurate views of the baby, the placenta or the cervix. A specialized ultrasound may take as long as 30 to 60 minutes. Be sure to tell the staff if you need anything during that time. Otherwise, relax and enjoy the show!
