|Procedure: Doppler Ultrasound Scanning|
Ultrasonography or ultrasound scanning involves the application
of an ultrasound transducer on the area to be examined. The transducter
is used to transmit high-frequency sound waves, which bounce off internal
structures to produce an image that can be displayed and recorded.
Doppler Ultrasound Scanning is used to measure
the velocity of blood flow. Doppler ultrasound can be used to listen to
the , examine
the foetal heart for ,
and estimate placental blood flow. This special type of ultrasound shows
different rates of blood flow in different colours on a monitor in real
A common procedure used in diagnosing and monitoring .
Other types of ultrasound scanning that are used in pregnancy and to
help diagnose certain gynaecological problems include (pelvic ultrasound scanning or sonography), and a (endovaginal ultrasound or ultrasonography).
The information in this page is presented in summarised form and has been taken
from the following source(s):
The Yale University School of Medicine Patient's Guide to
Medical Tests, Barry L. Zaret M.D., Senior Editor, published by Houghton Mifflin.