or sonogram images (much like sonar devices that enable submarines
to "see" underwater) were developed in the late
1950's as the ultimate in hi-tech.
first time, doctors were able to diagnose potential problems
using non-invasive radio waves that were safely beamed to
a chosen target inside the body.
that sonograms revolutionized prenatal care might have been
an understatement - as doctors were suddenly able to
view a healthy growing fetus and provide an early diagnose
of a known complication.
the use of real-time scanners and 3D technology have taken
ultrasound to an entirely new level, allowing expectant parents
their first "movies" of an unborn child. More importantly,
it gives doctors a clearer picture of normal fetal age, size
monitor progress and create a timeline for growth
determining sex around the 5th month. Above, two sonograms
the fetus at 8 weeks and, at right, 27 weeks.
fetal development picture galleries around the Web:
the Web, take a virtual tour of human development with examples
of the wonders of sonograms and ultrasound technology - in photo galleries,
video presentations and fascinating guides to how it all works
- plus related information on normal fetal growth from conception
to birth ...
Ultrasound: Sonograms - Find out how they work and what they're used for in this interesting overview with facts and information on different types of ultrasound testing, and answers to common questions asked about the exam.
Ultrasounds - An extensive guide to the topic including
its history and development, clinical applications and how
it's performed, a discussion on safety concerns and current
controversies, with more on transvaginal scans, doppler ultrasound,
3D and 4D scanning techniques, related photos, picture gallery,