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Radiation Protection Dosimetry Advance Access originally published online on March 28, 2008
Radiation Protection Dosimetry 2008 128(4):503-508; doi:10.1093/rpd/ncn056
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Effective dose: a useful concept in diagnostic radiology?

David Brenner1 and Walter Huda2

1 Columbia University, New York, NY, USA
2 Medical University of South Carolina, Charleston, SC, USA

The first 150 words of the full text of this article appear below.


   INTRODUCTION
 
Effective dose (E) was introduced by the International Commission of Radiological Protection (ICRP) to provide a summation of radiation doses to tissues and organs for radiological protection. For a non-uniform irradiation, E is designed to provide an estimate of th corresponding uniform whole-body dose that would result in the same stochastic detriment. E, which has the same units as equivalent dose, is obtained by summing individual organ equivalent doses (HT) multiplied by the corresponding tissue weighting factors.


Formula

where wT are dimensionless tissue weighting factors characterising the relative sensitivity of various tissues with respect to the endpoints, such as cancer induction and mortality. Twelve tissues and organs are specified in ICRP report 60 (see Table 1) with individual weights wT, and an additional ‘remainder’ tissue is defined. A revised set of tissue weighting factors is proposed in the ICRP 2006 Draft Recommendations (see Table . . . [Full Text of this Article]


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