To the Editor: Dr Einstein and colleagues1 reported high cumulative radiation doses in patients undergoing myocardial perfusion imaging (MPI) at their center. They suggested that efforts to reduce iatrogenic radiation exposure should be especially targeted at patients who have accrued higher cumulative doses. They also mentioned that it is unclear whether relatively higher use of MPI in certain patients (ie, white, male, insured patients) should be seen as an advantage or disadvantage, since it remains unclear whether the cancer risk associated with MPI is outweighed by the benefit of additional risk stratification. These 2 statements advocate disparate approaches to the same question.
Durand DJ. Cancer Risk From Multiple Imaging Tests. JAMA. 2011;305(9):887-888. doi:10.1001/jama.2011.220