What is a dating ultrasound
The use of chemicals to enhance contrast, known as contrast agents, is also a recent development in ultrasound.
So-called contrast-enhanced ultrasound (CEUS) improves the sensitivity for tumor detection.
"You can see images in real time, as opposed to a single snap-shot image such as [an] X-ray image," Byrne said.
"This means that we can see the heart beating, the arteries pulsating and the bowel’s peristalsis [the waves of muscle contraction that move food through the digestive tract]." With ultrasound, doctors can easily reposition the patient during imaging, which is especially important when checking for the movement of gallstones, for example.
The technology is available in Canada, Australia, China and Europe, but not in the United States, except in echocardiography (images of the heart generated by sound), Byrne said.
Tanya was a staff writer for Live Science from 2013 to 2015, covering a wide array of topics, ranging from neuroscience to robotics to strange/cute animals.
Technicians can specialize in fields such as obstetric and gynecologic sonography, neurosonography or cardiac sonography. Obstetric ultrasound is a technique used during pregnancy to create images of a human fetus.
The average annual salary of ultrasound technicians was ,350 in 2012, with an hourly salary of .02, according to the U. The procedure is used to monitor an unborn baby's health and detect potential problems.
In the 1970s, British and American hospitals started using it, and it has now become routine throughout the developed world, Nicolson said.She received a graduate certificate in science communication from the University of California, Santa Cruz, and a bachelor of science in biomedical engineering from Brown University.She has previously written for Science News, Wired, The Santa Cruz Sentinel, the radio show Big Picture Science and other places.The procedure can also be used during pregnancy to check on blood flow to the fetus through the placenta.As the use of ultrasound has evolved, there have been significant changes in image quality, Byrne noted.