Occipito-Frontal 150 Forehead and nose rests against bucky.

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Presentation transcript:

Occipito-Frontal 150 Forehead and nose rests against bucky. EAMs are equidistant from the bucky. Baseline and median sagittal plane are right angled to the bucky. Direct central ray angled 150 caudally (from perpendicular) in midline to pass through the nasion

Occipito-Frontal 150 Forehead and nose rests against bucky EAMs are equidistant from the bucky Baseline and median sagittal plane are right angled to the bucky Cassette ;- 24x30 cm lengthwise Direct central ray angled 150 caudally (from perpendicular) in midline to pass through the nasion 70 kV, 40 mAs, 100 cm

PA 150 Criteria As for PA The petrous ridges lying at the lower third of the orbits (Just above the lower orbital margins) Superior orbital fissures are demonstrated

Radiographic Appearance - Criteria As for PA Except The petrous ridges lying at the lever third of the orbits Superior orbital fissures are demonstrated

PA PA 150