Table 6.

Comparison of results of full head scan with glasses and thyroid shield vs no glasses and no thyroid shield

Organ	cGy	SD	Weight (ICRP103)	µSv
Brain	0.386	0.006	0.01	38.6
Cranium	0.250	0.006	0.01	25.0
Cervical spine	0.744	0.004	0.01	74.4
Eye L	0.450	0.002
Eye lens L	0.396	0.004
Eye lens R	0.469	0.008
Eye R	0.478	0.003
Mandible	0.506	0.006	0.01	50.6
Parotid	0.646	0.004	0.01	64.6
Thyroid	0.158	0.002	0.04	63.2

ICRP, International Commission on Radiological Protection; L, left; R, right; SD, standard deviation.

Scanner: i-CAT (Imaging Sciences International, Inc., Hatfield, PA); phantom: adult female, no glasses, no thyroid shield; field of view and time: full scan, 8.9 s.