Sinuses - SMV (Submentovertical)
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Sinuses - SMV (Submentovertical) |
Area Covered | Sphenoid sinuses, ethmoid sinuses, nasal fossae and maxillary 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 | 70 kVp 20 mAs |
FFD / SID | 100cm |
Central Ray | Directed to the midsaggital plane at the point midway between the angles of mandible, which is also approximately the point midway between the external auditory meatus (EAMs). Perpendicular to the IR/bucky |
Collimation | Collimate closely to area of sinus cavaties |
Markers | Superior and Lateral Marker orientation AP |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Suspended |
Positioning |
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Critique | Positioning |
Special Notes |