Facial - OM
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Facial Bones - Occipito Mental (OM) |
Area Covered | Infraorbital rim, maxillae, zygomatic bones and arch, nasal septum, anterior nasal spine |
Pathology shown | Fractures (blowout, tripod, leforte) , foreign bodies, fluid levels in sinus (if performed erect), neoplastic processes |
Radiographic Anatomy | Facial Bones Radiographic Anatomy |
IR Size & Orientation | 24 x 30cm 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 perpendicular to IR CR to centre of IR CR exits at acanthion |
Collimation | Collimate closely to outer margins of the skull |
Markers | Inferior and Lateral Marker orientation PA |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Suspend |
Positioning |
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Critique | Positioning |
Special Notes |