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Effective dose: how should it be applied to medical exposures?

Health Physics, Gartnavel Royal Hospital, West House, Glasgow G12 0XH, UK

View larger version (14K): [in this window] [in a new window]   Figure 1. Differences between tissue weighting factor and normalized aggregated detriment for the main tissues included in effective dose[3].

View larger version (37K): [in this window] [in a new window]   Figure 2. Uncertainties expressed as a percentage in the relative risk based on effective dose for a reference patient for a selection of medical exposures calculated using conversion coefficients derived from Monte Carlo simulations[6, 7, 9, 25, 28].

View larger version (29K): [in this window] [in a new window]   Figure 3. Ratios of effective dose for a reference patient calculated with the proposed 2006 weighting factors and with those in the 1990 recommendations for various medical exposures calculated using conversion coefficients derived from Monte Carlo simulations[6, 7, 9, 25, 28].

View larger version (13K): [in this window] [in a new window]   Figure 4. Variation in excess lifetime risk of fatal cancer from radiation exposure with age at exposure for a uniform whole-body exposure [30].