1. The Skull

2. Things to know • 3 views • AP • AP axial • Lateral

3. AP • 10 X 12 lengthwise • 80 @ 18 • Shield • Marker • Hold breath

4. Positioning • Patient Supine on table • Flex neck until the OML is perpendicular to IR • Mid line to Mid line • No rotation or tilt

5. CR perpendicular Enter at Glabella SID 40 Collimate to outer skull

6. Seen on Film • Frontal bone

7. AP Towne • 10 X 12 lengthwise • 80 @ 20 • Shield • Marker • Hold breath

8. Positioning • Patient supine on table • Mid line to midline • Depress chin until OML is perpendicular to IR • No rotation or titling • Ensure vertex of skull in light field

9. CR 30 Degrees caudad 2 1/1 inches above the glabella SID 40

10. Seen on film Occipital bone

11. Lateral • 10 x 12 Crosswise • 80 @ 10 • Shield • Marker • Hold breath • Collimate to skull margins

12. Positioning • Patient is prone on table • Turn head with side of interest near the IR • Interpupillary line perpendicular to IR • Mid-line to Mid-line • No rotation or tilt • Make sure the external occipital protuberance and the nasion or glabella is equal distance from table

13. CR perpendicular to IR 2 inches above the EAM SID 40

14. Seen on film • Lateral cranium nearest IR • Sella turcica in profile