Klaus-Rüdiger Trott1, Friedrich Kamprad. 1. Gray Cancer Institute, Northwood, UK, and Department of Radiotherapy, University Hospital Leipzig, Germany. trott@gci.ac.uk
Abstract
BACKGROUND: The effective-dose method which was proposed by the ICRP (International Commission of Radiation Protection) for the estimation of risk to the general population from occupational or environmental, low-dose radiation exposure is not adequate for estimating the risk of cancer induction by radiotherapy of malignant or nonmalignant diseases. METHODS: The risk of cancer induction by radiotherapy of benign diseases should be based on epidemiologic data directly derived from follow-up studies of patients who had been given radiotherapy for nonmalignant diseases in the past. RESULTS: Risk factors were derived from epidemiologic studies of patients treated with irradiation for nonmalignant diseases to be used for selecting treatment options and optimizing treatment procedures. CONCLUSION: In most cases, cancer risks estimated by the effective-dose method may overestimate the true risks by one order of magnitude, yet in other cases even may underestimate it. The proposed method using organ-specific risk factors may be more suitable for treatment planning.
BACKGROUND: The effective-dose method which was proposed by the ICRP (International Commission of Radiation Protection) for the estimation of risk to the general population from occupational or environmental, low-dose radiation exposure is not adequate for estimating the risk of cancer induction by radiotherapy of malignant or nonmalignant diseases. METHODS: The risk of cancer induction by radiotherapy of benign diseases should be based on epidemiologic data directly derived from follow-up studies of patients who had been given radiotherapy for nonmalignant diseases in the past. RESULTS: Risk factors were derived from epidemiologic studies of patients treated with irradiation for nonmalignant diseases to be used for selecting treatment options and optimizing treatment procedures. CONCLUSION: In most cases, cancer risks estimated by the effective-dose method may overestimate the true risks by one order of magnitude, yet in other cases even may underestimate it. The proposed method using organ-specific risk factors may be more suitable for treatment planning.
Authors: Iraklis Vastardis; Bojan Pajic; Richard H Greiner; Brigitte Pajic-Eggspuehler; Daniel M Aebersold Journal: Strahlenther Onkol Date: 2009-12 Impact factor: 3.621
Authors: Stephanie R McKeown; Paul Hatfield; Robin J D Prestwich; Richard E Shaffer; Roger E Taylor Journal: Br J Radiol Date: 2015-10-14 Impact factor: 3.039