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Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Although this limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy, young adults and thus, 20 kHz serves as a useful lower limit in describing ultrasound. The production of ultrasound is used in many different fields, typically to penetrate a medium and measure the reflection signature or supply focused energy. The reflection signature can reveal details about the inner structure of the medium, a property also used by animals such as bats for hunting. The most well known application of ultrasound is its use in sonography to produce pictures of fetuses in the human womb. There are a vast number of other applications as well. Approximate frequency ranges corresponding to ultrasound, with rough guide of some applications A fetus in its mother's womb, viewed in a sonogram (brightness scan) An ultrasound examination in East Germany, 1990From Wikipedia under the
GNU Free Documentation License  pregnancycheck.com 296px x 400px | 14.80kB [source page] Pregnancy Ultrasound Picture of week 20 Pregnancy Ultrasound Picture of week 21  hmhd.org 225px x 300px | 14.60kB [source page] Ultrasound testing uses sound waves to see inside your body instead of radiation It is a safe painless procedure From Yahoo Image Search: "Ultrasound"  dev.emcelettronica.com planright Sun, 06 Dec 2009 06:50:32 GM MAX4940, MAX4940A are ideal for High-Voltage Applications Such As Portable . Ultrasound. Imaging and Industrial Flaw Detection.  mobilewhack.com Brian Sun, 29 Nov 2009 19:03:02 GM A lot of these portable solutions covers imaging and Toshiba adds another one to aid doctors and physicians with the release of the Viamo Laptop . Ultrasound. System. This new portable health gadget combines portability with hi-res imaging ...  events.wayne.edu Wayne State University Mon, 30 Nov 2009 13:00:00 GM Obstetric . Ultrasound. Conference. Monday, November 30, 2009 from 8:00 AM to 9:00 AM - Recurring Weekly. Maternal-Fetal Medicine Fellowsip Program Conference. Category: Conference. Location: 7 Brush North, Large Conference Room. Contact: ... From Google Blog Search: "Ultrasound"  news.google.com PhysOrg.com Ultrasound operates in the same general way as radar - sounds waves are sent out and when they hit something, they bounce back. ... news.google.com Bizjournals.com Siemens will resell Volano-branded intravascular ultrasound and fractional flow reserve systems and accessories alongside Siemens' X-ray systems. ... Volcano Corporation and Siemens Healthcare Announce Global Resale ... PR Newswire (press release) all 12 news articles » news.google.com C&G Newspapers His appearance at the event next month will assist in raising funds for the Sinai Guild to purchase an ultrasound machine to give to the DMC and Huron ... and more » From Google News Search: "Ultrasound" During an ultrasound, is the whooshing sound directly related to the heart rate? Q. I understand ultrasound works by detecting blood flow. Is the rate of the whoosh a one-for-one correlation with the heartbeat, or is it the sound of the pulses generated by the machine, at a set rate? Asked by Darwinall - Mon Nov 3 22:38:30 2008 - - 1 Answers - 0 Comments A. It depends what kind of ultrasound you had. Ultrasound checks venous and arterial flow. Venous sounds like waves in the ocean, and arterial sound like a heartbeat. But to answer your question...No, the sound doesn't come from the machine, and yes...the whoosh is a one-for-one with your heartbeat. (That is if indeed it was an arterial scan) Answered by Mamacita - Thu Nov 6 02:39:19 2008 How do you preserve your ultrasound pictures? Q. I received my first ultrasound picture thursday. It seems like the kind of ink paper combo that would fade. Would spraying it with hairspray work? Asked by Food Traveler - Mon Apr 13 17:04:14 2009 - - 8 Answers - 0 Comments A. i kept mine in a book and it faded! i would suggest laminating or something similar! good luck Answered by Gemma - Mon Apr 13 17:08:42 2009 How accurate is my first vaginal ultrasound to determine how far along baby is?
Q. My LMP was July 11, 2008 with regular 28 day cycles (for the past 7 months it's been 28 days). Calculations from LMP gave me a due date of April 17, 2008. I just had my first vaginal ultrasound and my baby measured to be 8 weeks with EDD of April 17, 2008. Is it very possible that calculations from LMP and measurement of baby be right on the money? Asked by 808baby - Sun Sep 7 14:41:12 2008 - - 3 Answers - 0 Comments A. They are most accurate before 12 weeks. So chances are that it is dead on. congrats your baby is due on my sisters b-day. Answered by DJ Alex is 10 months old - Sun Sep 7 14:46:08 2008 From Yahoo Answer Search: "Ultrasound"
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Mison
Keitzer Manufacturing (USA)
Steinhart Medizinsysteme (Germany)