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Fetal Medicine FAQs Q. What is ultrasonography ? Sonography, or ultrasound, utilizes high frequency sound waves (not x-rays) to obtain diagnostic images. Ultrasound imaging is used to evaluate many parts of the body, including the abdomen, blood vessels, fetus of pregnant women, superficial body structures, and newborn brain to name only a few. Q. What is the importance of sonography today?
Q. What are the limitations of sonography? Ultrasound
waves cannot penetrate air & bone and hence sonography has limited
applications in regions like the skull and chest.
Q. Is sonography harmful? No harmful effects of sonography are known even on the embryo of the foetus of a pregnant women.
Q. What is Colour Doppler? Colour
Doppler is colour-encoded sonography of the blood vessels. Blood flow
is seen in colour. It is like sonography and there is no involvement of
any injection of contrast to the mother.
Q. What is 3D sonography? 3D sonography is 3 Dimensional display of the surface of a structure like a foetal face/spine or any other part of the body.
Q. What is endovaginal sonography? It
is sonography done for better visualisation of uterus & ovaries. A
high-resolution endovaginal probe is inserted into the vagina for this
examination. It is not painful. It is done as a routine at our centre
as it is observed the at times even fairly prominent lesions can be
missed if only trans-abdominal sonography is performed. It does nor
require a full bladder.
Q. Is dating and weight estimation 100% accurate? Dating
and weight estimation are just estimates based on statistical data of
the baby size. It is not 100% accurate but predicts the dating and
weight estimation up to +/- 10%. |
