CT gantry mounted radioactive source loader for PET calibration

摘要

A medical imaging system is provided including a positron emission tomography (PET) imaging apparatus and a computed tomography (CT) imaging apparatus. The CT imaging apparatus includes a rotatable gantry. A radioactive source loader is attached to the rotatable gantry to rotate therewith. The radioactive source loader further includes a radioactive source to calibrate the PET imaging apparatus.