BBC News - Q&A: Health effects of radiation exposure Danger level Radiation dose Effect Source: World Nuclear Association 2 millisieverts per year (mSv/yr) Typical background radiation experienced by everyone (average 1.5 mSv in Australia, 3 mSv in North America) 9 mSv/yr Exposure by airline crew flying New
Head CT (Computed Tomography, CAT scan) - RadiologyInfo - The radiology information resource for pat What is CT Scanning of the Head? Computed tomography, more commonly known as a CT or CAT scan, is a diagnostic medical test that, like traditional x-rays, produces multiple images or pictures of the inside of the body. The cross-sectional images generated
RadTown USA Neighborhoods | US EPA - US Environmental Protection Agency Learn about radiation sources and uses in the interactive, virtual community of RadTown USA! Explore radiation sources and uses in homes and schools, medical buildings and laboratories and outdoors. You will also find information about coal-fired power pl
CT scanning: a major source of radiation exposure. Semin Ultrasound CT MR. 2002 Oct;23(5):402-10. CT scanning: a major source of radiation exposure. Wiest PW, Locken JA, Heintz PH, Mettler FA Jr.
CT scanning: A major source of radiation exposure - ScienceDirect CT scanning is a relatively high dose procedure that is becoming much more common worldwide. In the mid-1990s, CT scanning accounted for about 4% of ...
Many people unaware of radiation risk from CT scans | Reuters 3 Jan 2013 ... The radiation dose from one CT scan typically ranges from a couple of ... sources - to close to 20 millisieverts, the annual exposure limit for nuclear ... Busey said it's important to educate all patients about the benefits and
Radiation Sources Range from Cigarettes to CT Scans - Scientific ... 1 May 2011 ... By far the largest source is medical imaging technology (see "Graphic Science: Exposed" in the May 2011 issue). Americans, on average, are ...
Radiation Dose in X-Ray and CT Exams - RadiologyInfo We are exposed to radiation from natural sources all the time. According to recent ... Altitude plays a big role, but the largest source of .... For higher dose exams such as computed tomography (CT) scans and those involving the use of contrast .
David Brenner on the Radiation Exposure Risk of CT Scans ... Anthropomorphic phantom used to measure dose from CT scans. ... tomography —an increasing source of radiation exposure" (Brenner DJ, Hall EJ, N. Engl. J. Med. 357[22]: 2277-84, ... Would you sum up the major conclusions of the paper?
Advanced CT scanners reduce patient radiation exposure, study finds 21 Jun 2014 ... The use of advanced CT scanning equipment is helping to address the important concern of patient exposure to radiation. ... dual-source CT scanners significantly reduced radiation exposure for patients when compared with ...