The need for quantifying inter-racial differences is justified by the fact that the Asian population grows rapidly, and consists of more than half of the world population (United Nations 2011). It is of interest to determine whether it's safe to evaluated the dosimetry (phase I-studies) on one population (Caucasian) and apply the results onto another (Asian).
The dosimetry profile for a given diagnostic radiopharmaceutical is determined by estimating the effective dose and the mean absorbed dose to the critical organ or tissue. This allows for risk comparisons across different radiopharmaceuticals and simplifies dose estimations in case of misadministration. Furthermore, regulatory authorities such as the Food and Drug Administration (FDA) require sufficient benefit-to-risk ratio to approve a given radiopharmaceutical for marketing (McParland 2010).