TABLE 6.

DRLs for CT Used for Attenuation Correction and Localization in PET Scans in Terms of Volume CT Dose Index and Dose–Length Product and Effective Dose Associated with Hybrid CT of PET/CT

PET/CT protocolVolume CT dose index (mGy)Dose–length product (mGy⋅cm)Effective dose (mSv)
Brain5.72113.16
Oncology, vertex to mid thigh4.26775.66
Oncology, whole body (head to toe)4.46166.10