All patients should be given a general idea about the magnitude of the proposed radiation dose. The exposure should be compared with an estimated effective dose to a single chest x-ray (0.02 mSv), a transcontinental airplane flight (0.02 mSv), or annual individual radiation dose from the natural background (3.0 mSv).
About the author: Dr K K Aggarwal is Padmashri and Dr B C Roy National Awardee, President Heart Care Foundation of India, Dean Board of Medical Education Moolchand Medcity, Sr. Physician & Cardiologist, Visiting professor Clinical Research DIPSAR, Past President Delhi Medical Association, Past Academic and Research Wing Head IMA, Chairman Ethics Committee Delhi Medical Council.
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