Comparison of the effective dose and convenience of clinical work between the inflammation scans of ⁶⁷Ga-Citrate and ¹⁸F-FDG

Chih-Yi Wu, BS, Li-Yu Chen, MS, Ya-Ting Huang, RN, NP, PhD, Ya-Yao Huang, PhD

Posted by 2022 Annual Conference of SNM, Taiwan

Introduction
⁶⁷Ga-Citrate is routinely used for inflammation scan with scintillation camera in Taiwan. Typically, patients receive 4~6 mCi of ⁶⁷Ga-Citrate injection and then the scan will be performed at 48 hours post administration. As needed, the patient has to come back again for an another scan as the comparison images at 72 hours post administration. Thus, the lengthy and patient-unfriendly procedure accompanied by high radiation doses has been the major drawback for the whole inflammation scan procedure of ⁶⁷Ga-Citrate. In the other hand, ¹⁸F-FDG has been wildly used for inflammation scan with the well diagnostic ability and a friendly 3~4 hour scan protocol. ¹⁸F-FDG inflammation scan not only can acquire the PET/CT or PET/MRI images with good image qualities, also can achieve the patient’s low effective dose compared to ⁶⁷Ga-Citrate inflammation scan.