Ahem, Blame the Daughter!
=========================

* Robert S. Hattner

**TO THE EDITOR:** 

As an ardent amateur physicist I find the use of terms such as *germanium attenuation correction* in the Journal discordant (1). After all, this is *The Journal of* Nuclear *Medicine,* and a nuclide’s mass number is best specified. Germanium in this case is number 68, but alas, the authors seem not even to realize that the attenuation source is actually 68Ga, the positron-emitting daughter of 68Ge, a β− emitting nuclide.

## REFERENCES

1.  Osman MM, Cohade C, Nakamoto Y, Marshall LT, Leal JP, Wahl RL. Clinically significant inaccurate localization of lesions with PET/CT: frequency in 300 patients. J Nucl Med. 2003;44:240–243.
    
    [Abstract/FREE Full Text](http://jnm.snmjournals.org/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6Njoiam51bWVkIjtzOjU6InJlc2lkIjtzOjg6IjQ0LzIvMjQwIjtzOjQ6ImF0b20iO3M6MjE6Ii9qbnVtZWQvNDUvMS8xNTMuYXRvbSI7fXM6ODoiZnJhZ21lbnQiO3M6MDoiIjt9)