IJCS | Volume 32, Nº6, November / December 2019

641 Figure 2 - a) Comparison of the effective dose per individual of the American population in 1980 and 2006. b) Distribution of the collective dose by application and by type of examination. Source: Adapted from NCRP Report no. 160 4 All categories (early 1980s) Fernandes et al. Ionizing radiation for cardiovascular diseases Int J Cardiovasc Sci. 2019;32(6):639-644 Viewpoint