![]() ![]() There have been some benefits from the focus on radiation as well. Radiation dose and image quality equally important in medical Unfortunately these articles have been widely shared in the media, and have created radiophobia in the minds of some patients and doctors. This practice of extrapolation has been denounced by various scientific agencies. In fact, the International Atomic Energy Agency now states that the age-old 10-day rule should now be replaced by the 28-day rule, as the risk for fetuses is so minimal !Īll the alarmist studies published in radiology literature are based on pure mathematical extrapolations from high radiation exposure data, and are not real-life figures. The Health Physics Society, the American Association of Physicists in Medicine, and French Academy of Sciences and National Academy of Medicine, and the International Commission on Radiological Protection (ICRP) task group on Fukushima, amongst others, have clearly stated that there is no evidence that radiation 100 mGy radiation. This fact is accepted by most international scientific bodies. International scientific bodies weigh in on radiation doses in medical imaging It is only in patients receiving radiation therapy for cancer that we use high-dose radiation which can overwhelm the body’s repair mechanisms, leading to an increased risk of cancer. As per the American College of Radiology (ACR), a chest X-ray, a single-phase CT abdomen pelvis, and a PET/CT cause approximately 0.1 mGy, 10 mGy and 25 mGy exposure respectively, which can similarly be easily taken care of by the human body. The same logic applies to diagnostic radiation. Thus, normal individuals can take care of low dose radiation without developing cancer. This is so because the human body is equipped with repair mechanisms to handle the damage caused by low dose radiation, in the form of DNA and RNA repair and anti-oxidative stress mechanisms. There are however places like Ramsar, Iran, which are exposed to as high as 260 mGy annual background radiation, without there being an increased incidence of cancer in people living there. This for example amounts to approximately 3 mGy annually in most of USA. ![]() However, the fact is that everyone gets exposed to certain amount of background radiation irrespective of where they live. The epidemiologic data available to us for developing models of radiation risk is based on high radiation exposure (>100 mGy at the minimum), as in the 1945 nuclear blasts or the Chernobyl tragedy. Epidemiologic evidence and bench research demonstrate that there is no reason to worry about radiation in doses less than 50-100 mGy. ![]()
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