. Author manuscript; available in PMC: 2013 Jan 21.

Published in final edited form as: Phys Med Biol. 2011 Dec 9;57(2):309–328. doi: 10.1088/0031-9155/57/2/309

Table 1.

Typical radiation doses from PET/CT and CT scans.

Type	Techniques	Effective Dose (mSv)	References
PET	Recommended administration 190 MBq ¹⁸F-FDG (in 3D mode)	3.6 ^a	Boellaard et al 2010 (EANM guidelines)
Dx CT	Wide range of settings reported. Coverage: C+A+P	7 – 43	NCRP Report 160, 2009. Table 4.2
LD-HCT	110 – 120 kVp, 30 – 60 mAs, 0.75 – 6.5 mm slice collimation, 1.25 – 2.0 pitch. Scan axial coverage: 851 – 910 mm	1.3 – 4.5 Geometrical mean 2.4 Total for PET/CT: 6.0	Brix et al 2005. Table 2
LD-CINE-CT	120 kVp, 5mAs, 8 × 2.50 mm collimation, 6s cine duration. Cine-CT scan coverage: 200 mm over thorax area	2.7^b	Pan et al 2006
LD-HCT + Ext LD-CINE-CT	Cine scan: 15 s duration with 400 mm axial coverage. HCT axial scan coverage: 900 mm	13.5 (cine-CT) + 2.4 (HCT) = 15.9 (all CT)^b + 3.6 (PET) = 19.5 (total)	Based on Pan et al 2006
LD-HCT + Ext ULD CINE-CT	HCT axial coverage: 500 mm (400 mm coverage from cine-CT)	1.35 (cine-CT) +1.33 (HCT) = 2.7 (all CT)^b + 3.6 (PET) = 5.3 (total)	Proposed in this paper

Abbreviations: Dx CT = Diagnostic CT, HCT = Helical CT. LD-HCT = Low Dose HCT for PET/CT. LD-CINE = Low Dose Cine CT. Ext LD-CT = Extended duration and coverage Low Dose Cine CT. Ext ULD CINE-CT = Extended duration and coverage Ultra-Low Dose Cine CT. C+A+P = CT scan range of chest, abdomen, and pelvis, roughly equivalent to ‘whole-body’ range used in PET/CT.

Effective PET dose calculated based 1.9E-02 mSv/MBq from ICRP report 106, 2008 (Table C.9.4).

Effective CT dose calculated with ImPACT CT Dosimetry tool (v 1.0.4).