The Skull

1
The Skull
2
Things to know

• 3 views
• AP
• AP axial
• Lateral

3
AP

• 10 X 12 lengthwise
• 80 _at_ 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 _at_ 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 _at_ 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