A Ga-68 dotatate scan is a nuclear medicine test used to check the body for the presence of neuroendocrine tumor cells. ... Bradshaw, M. L., Lewis, K., Pinho, D., Shah, C., & Walker, R. C. (2018). ACR practice parameter for the performance of gallium-68 DOTATATE PET/CT for neuroendocrine tumors. Clinical nuclear medicine, 43(12), 899-908 ...