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An ultrasound exam is a procedure that uses high-frequency sound waves to scan a woman's abdomen and pelvic cavity, creating a picture (sonogram) of the baby and placenta. Although the terms ...
www.americanpregnancy.org/prenataltesting/ultrasound.html
Upside: Very good overview of different types of ultrasounds and answers common questions about them
Downside: Limited links for additional depth
When are scans usually carried out? Can the scan show the gender of my baby?
www.baby2see.com/medical/ultrasound.html
Upside: Very good information on ultrasounds including when to have one and learning the gender of your baby
Downside: None
This factsheet is for women who are having an ultrasound scan during pregnancy. Ultrasound is used to monitor your baby's development and check for physical abnormalities.
hcd2.bupa.co.uk/fact_sheets/html/ultrasound.html
Upside: Information on ultrasound procedure and its safety
Downside: None
Why ultrasound baby scans are used during pregnancy, what to expect during an ultrasound scan plus checks on your foetus that can be made using ultrasound pictures.
www.askbaby.com/ultrasound-scan.htm
Upside: Information and advice on ultrasounds
Downside: None
* A Gestational sac at 5 and a half weeks (vaginal scan). Fetal poles can not yet be seen * A fetus at 6 weeks (vaginal scan) * A fetus at 7 weeks with cord and yolk sac ( vaginal scan ) * A fetus at ...
www.ob-ultrasound.net/frames.htm
Upside: Many ultrasound pictures and videos
Downside: Basic site design
What is an ultrasound? What information will my ultrasound provide? Why would I need an ultrasound during my first trimester? Why would I need an ultrasound later in my pregnancy? What's the ...
www.babycenter.com/0_all-about-ultrasounds_329.bc
Upside: Detailed article on ultrasounds including what they are used for, risks and the procedure
Downside: Click on 'See all on one page' to reduce clicking
Answer From just over 5 weeks, see the associated website
wiki.answers.com/Q/How_soon_can_an_ultrasound_detect_pregnancy
Upside: User question about ultrasounds to detect pregnancy
Downside: Unclear the source of answers
Now is your opportunity to ask our ultrasound expert about what to expect or what your results mean, what you can ask your doctor, all the "what if...," "what should I..." type questions or whatever ...
www.pregnancy.org/ultrasound.php
Upside: Page with advice and answers to many ultrasound question
Downside: Several ads on each page
picture of a baby (fetus) in the uterus. Because it uses sound waves instead of radiation, ultrasound is safer than X-rays. Ultrasound provides important information about the health of the fetus and ...
www.marchofdimes.com/professionals/14332_1167.asp
Upside: Detailed explanation of ultrasounds including how it works and what it is used for during pregnancy
Downside: Small, light color font
Ultrasound imaging, also known as sonography, uses inaudible sound waves to produce images of the different structures in your body. During an ultrasound examination, a small, hand-held device called ...
https://www.asrt.org/content/ThePublic/AboutRadiologicProcedures/UltrasoundDuringPregnancy.aspx
Upside: Details ultrasounds procedure
Downside: No information about interpreting results