Uncertainties in effective dose estimation for CT transmission scan in total body PET-CT imaging with auto mA3D tube current modulation

ABSTRACT

Background: positron Emission Tomography-Computed Tomography [PET-CT] is a useful hybrid imaging modality in the diagnosis of various malignancies. This modality imposes almost 20 mSv radiation dose to the patient. The purpose of the present study was to evaluate the uncertainties in calculated CT effective dose in TUBE CURRENT MODULATION-activated scans by Impact-Dose software