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What Is the Radiation Risk?

Raymond J. Gibbons, MD; Thomas C. Gerber, MD, PhD

Arch Intern Med. 2009;169(13):1185-1187.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

The critical appraisal of any medical test or strategy requires careful assessment of its potential risks, benefits, and costs. Accurate definition of the risks, benefits, and costs of the use of coronary artery calcium (CAC) scanning with computed tomography (CT) in asymptomatic individuals remains an elusive goal. In this issue of the Archives, Kim et al¹ contribute to our knowledge about potential risks by reporting estimated radiation doses and excess lifetime risks of radiation-induced cancer from CAC scanning for a variety of CT scanners and scanning protocols that have been described in the literature. The authors report more than a 10-fold variation in effective radiation dose, from 0.8 to 10.5 mSv, with a median of 2.3 mSv. The data reflect well-established relationships between the specifics of CT scanner settings such as x-ray tube potential or tube current-time product on the . . . [Full Text of this Article]

NEED FOR A STANDARDIZED PROTOCOL


ESTIMATING HEALTH RISKS FROM LOW-DOSE IONIZING RADIATION EXPOSURE

BENEFIT OF CAC SCANNING FOR CARDIOVASCULAR RISK PREDICTION

IMPLICATIONS

AUTHOR INFORMATION


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