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Murphy MJ , Balter J , Balter S , BenComo JA , Das IJ , Jiang SB , Ma CM , Olivera GH , Rodebaugh RF , Ruchala KJ , Shirato H , Yin FF
The management of imaging dose during image-guided radiotherapy: Report of the AAPM Task Group 75
Medical Physics. 2007 Oct;34(10) :4041-4063
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Radiographic image guidance has emerged as the new paradigm for patient positioning, target localization, and external beam alignment in radiotherapy. Although widely varied in modality and method, all radiographic guidance techniques have one thing in common-they can give a significant radiation dose to the patient. As with all medical uses of ionizing radiation, the general view is that this exposure should be carefully managed. The philosophy for dose management adopted by the diagnostic imaging community is summarized by the acronym ALARA, i.e., as low as reasonably achievable. But unlike the general situation with diagnostic imaging and image-guided surgery, image-guided radiotherapy (IGRT) adds the imaging dose to an already high level of therapeutic radiation. There is furthermore an interplay between increased imaging and improved therapeutic dose conformity that suggests the possibility of optimizing rather than simply minimizing the imaging dose. For this reason!
Murphy, Martin J. Balter, James Balter, Stephen BenComo, Jose A., Jr. Das, Indra J. Jiang, Steve B. Ma, C.-M. Olivera, Gustavo H. Rodebaugh, Raymond F. Ruchala, Kenneth J. Shirato, Hiroki Yin, Fang-Fang AMER ASSOC PHYSICISTS MEDICINE AMER INST PHYSICS