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Medical Radiation and cancer risk: assessing the price of progress

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Air date: Friday, January 11, 2013, 12:00:00 PM
Time displayed is Eastern Time, Washington DC Local
Views: Total views: 305, (82 Live, 223 On-demand)
Category: NIH Director's Seminars
Runtime: 01:02:02
Description: NIH Director's Seminar

Radiation exposure to the US population from diagnostic imaging has increased 6-fold in the last three decades, primarily due to the rapid increase in CT scans from 1 to 80 million per year. Despite the great medical benefits there are concerns about the potential future cancer risks from CT and other higher dose imaging tests such as nuclear medicine cardiac stress tests.

Dr. Berrington's Radiation Epidemiology Branch conducted the first study to directly assess the cancer risks after CT scans in a historical cohort study of 200,000 children in the UK. Dr. Berrington will discuss the first results from this study and also present risk projections for the number of future cancers in the US that may be related to diagnostic imaging in children and adults if use continues at current levels. Recently a number of new screening tests such as lung CT and CT colonography have been proposed for use in the general population, and newer radiotherapy techniques like proton therapy have become more widespread. Dr. Berrington will also describe work that she has conducted that assesses the balance of the potential benefits against the radiation-related cancer risks for these emerging technologies.
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NLM Title: Medical radiation and cancer risk : assessing the price of progress [electronic resource] / Amy Berrington de González.
Series: NIH director's seminar
Author: Berrington de González, Amy.
National Cancer Institute (U.S.)
Publisher:
Other Title(s): NIH director's seminar
Abstract: (CIT): NIH Director's Seminar Radiation exposure to the US population from diagnostic imaging has increased 6-fold in the last three decades, primarily due to the rapid increase in CT scans from 1 to 80 million per year. Despite the great medical benefits there are concerns about the potential future cancer risks from CT and other higher dose imaging tests such as nuclear medicine cardiac stress tests. Dr. Berrington's Radiation Epidemiology Branch conducted the first study to directly assess the cancer risks after CT scans in a historical cohort study of 200,000 children in the UK. Dr. Berrington will discuss the first results from this study and also present risk projections for the number of future cancers in the US that may be related to diagnostic imaging in children and adults if use continues at current levels. Recently a number of new screening tests such as lung CT and CT colonography have been proposed for use in the general population, and newer radiotherapy techniques like proton therapy have become more widespread. Dr. Berrington will also describe work that she has conducted that assesses the balance of the potential benefits against the radiation-related cancer risks for these emerging technologies.
Subjects: Neoplasms, Radiation-Induced--epidemiology
Risk Factors
Tomography, X-Ray Computed--adverse effects
Publication Types: Lectures
Webcasts
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NLM Classification: QZ 200
NLM ID: 101601855
CIT Live ID: 12262
Permanent link: http://videocast.nih.gov/launch.asp?17744