PDF-CT Radiation Dose and Risk Fact vs Fiction

199 Daniel N DeMaio MEd RTRCT S ince its development in the early 1970s com puted tomography CT has secured a place among important diagnostic imaging proce dures helping to save coun. Separating Fact from Fantasy. William Hendee, PhD. With thanks to . Michael O’Connor, PhD. Professor of Radiology. Mayo Clinic. NO CONFLICTS OF INTEREST . TO DECLARE – . FINANCIAL OR OTHERWISE. ©. PARM AUTUMN SYMPOSIUM. October 6 & 7, 2011. Margaret “Peggy” Blackwood, MS, DABR. System Director, Radiation Physics. Radiation Safety Officer. West Penn Allegheny Health System. Radiation safety…we’ve come a long way. Fact . vs. Fiction. Disclosures. No financial disclosures for myself or family. No off label uses will be discussed. One exception: I am a radiologist. 25+ years selling . xrays. for a living. Mortgages and college tuition still to pay. . Protection. in . Laboratory. . work. Mats Isaksson, prof.. Department. . of. . radiation. . physics. , GU. mats.isaksson@radfys.gu.se. Fundamental . principles. (ICRP). Justification. Optimisation. GMOs are created by injecting chemicals into food AFTER it is harvested.. Fiction. GMOs are developed through genetic engineering where scientists identify and insert specific traits into the DNA of the seed before it is ever planted. The plant grows just like conventional (non-GMO) seeds. . IVAN. July 16, 2010 . What is Fact or Fiction? How do you know the difference?. Technicians must stay current in a changing field. Make sure the safety information you are sharing is based on fact not fiction or personal preference. . Radioactivity: The characteristic of various materials to emit ionizing radiation. Ionization: The removal of electrons from an atom. The essential characteristic of high energy radiations when interacting with matter.. Radiation effects:. Deterministic effects. Stochastic effects. Deterministic effects. A deterministic effects has a threshold in dose.. The severity of the effect is dose related.. Radiation induced cataracts are an example of a deterministic effects.. and . Risk . Anthony Waker. Faculty of Energy Systems and Nuclear Science. External Exposure. The source is external to the body. Types of Exposure. CT Scanner: A few to 10s of . mSv. per examination. 　. 1958-2009. *. Hiromi Sugiyama. 1. , . Munechika. . Misumi. 1. , . Alina. Brenner. 1. . Eric J Grant. 1. , . Ritsu. Sakata. 1. , Dale Preston. 2. , Atsuko . Sadakane. 1. , Mai . Utada. 1. , . Laboratory. . work. Mats Isaksson, prof.. Department. . of. . radiation. . physics. , GU. mats.isaksson@radfys.gu.se. Fundamental . principles. (ICRP). Justification. Optimisation. Application. of . Fact or Fiction?. Bioengineered crops (GMOs) are created by injecting chemicals into food AFTER it is harvested. Fiction. GMOs are developed through genetic engineering where scientists identify and insert specific traits into the DNA of the seed before it is ever planted. The plant grows just like conventional (non-GMO) seeds. The transgenic trait is then transferred to other varieties through traditional cross-breeding.. Bálint Vecsei dr.. Principles. of . radiation. . protection. , . dose. . limits. http://www.kernenergie.de. radioaktivität. . röntgenstrahlen. und . gesundheit. Radiation. is . indispensable. Jennifer Schroeder, MD. Resources . . Objectives. Cover some basic terminology. What is the target of radiation in living systems. How does the cell cycle play a role. Units and the ridiculousness that it is.