Skull - Lateral
Jump to navigation
Jump to search
Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Skull - Lateral (Erect) |
Area Covered | Entire skull |
Pathology shown | Fractures and pathologies of the skull |
Radiographic Anatomy | Skull Radiographic Anatomy |
IR Size & Orientation | 24 x 30 cm Landscape |
Film / Screen Combination | Regular (CR and DR as recommended by manufacturer) |
Bucky / Grid | Moving or Stationary Grid |
Filter | No |
Exposure | 70 kVp 16 mAs |
FFD / SID | 100 cm |
Central Ray | Directed to 5 cm superior to the EAM (External Auditory Meatus) Perpendicular to the bucky |
Collimation | Outer skin margins of the skull |
Markers | Inferior and Anterior Marker orientation AP, indicating the side of the skull closest to the bucky |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Suspended |
Positioning |
|
Critique | Positioning
|
Special Notes | Determining the direction of head rotation Identify the greater wing of sphenoid which is closer to the bucky. Compared to the other greater wing of sphenoid it will appear sharper and less magnified. Look at the position of the one furthest from the bucky to decide how to reposition the patient. For instance, in the case of a left lateral skull view, the greater wing of sphenoid which is less sharp and more magnified will be on the right side of the patient. If this is more anterior than the one on the left, it means the patient is looking towards the bucky, so bring the midsaggital plane parallel to the bucky to rectify this. |