Sinuses - PA 15° (Caldwell view)
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Sinuses - PA 15° (Caldwell view) |
Area Covered | Frontal sinuses projected above the frontonasal suture, Anterior ethmoid air cells visualised lateral to each nasal bone directly below the frontal sinuses |
Pathology shown | Inflammatory conditions ie: sinusitis, secondary osteomyelitis and sinus polyps |
Radiographic Anatomy | Sinuses Radiographic Anatomy |
IR Size & Orientation | 18 x 24cm Portrait |
Film / Screen Combination | Regular (CR and DR as recommended by manufacturer) |
Bucky / Grid | Moving or Stationary Grid |
Filter | No |
Exposure | 75 kVp 20 mAs |
FFD / SID | 100cm |
Central Ray | CR angled caudad 15° and centre to exit at the nasion |
Collimation | Four sides of collimation Collimate closely to area of sinus cavaties |
Markers | Inferior and Lateral Marker orientation PA |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Suspended |
Positioning | Erect
|
Critique | Positioning |
Special Notes |