Comparative Biodistribution and Radiation Dosimetry of ⁶⁸Ga-DOTATOC and ⁶⁸Ga-DOTATATE in Patients with Neuroendocrine Tumors

Abstract

The effective dose for a typical 100-MBq administration of (68)Ga-DOTATATE and (68)Ga-DOTATOC is 2.1 mSv for both tracers. Therefore, from a radiation dosimetry point of view, there is no preference for either tracer for PET/CT evaluation of somatostatin receptor-expressing tumors.