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For diagnostic nuclear medicine, there has not been even a single report that has shown increased cancer risk from radiotracer usage. So, what are the dose reduction efforts going to gain us in terms of reduced cancers? Reduction of excess cancers from zero to zero? How can anyone justify all the dose reduction efforts, with no health benefit to patients? Though dose reduction has been recommended by many leading scientists, government agencies, and the various professional organizations as being prudent based on the linear no-threshold (LNT) model, there is increasing amount of evidence for the invalidity of the LNT model and for the beneficial effects of low dose radiation including prevention of cancer and neurodegenerative diseases. So, there is no benefit to patients in terms of reduced cancer risks from these dose reduction efforts. Aggressive dose reduction efforts can result in poorer image quality, and this has been described in reports of dose reduction efforts in a recent meeting. Such dose reduction efforts also tend to validate the current popular superstitious belief about the carcinogenicity of low dose radiation, and discourages and prevents study of its beneficial effects. In view of the above, I would suggest suspending the current dose monitoring/reduction efforts, and return our focus to improving the image quality and diagnosis. Mohan Doss email@example.com
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