Mandible - PA or AP

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Mandible - PA
Area Covered	Mandibular rami and lateral portion of body
Pathology shown	Fractures, dislocations, neoplasms and inflammatory changes
Radiographic Anatomy	Mandible 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	68 kVp 20 mAs
FFD / SID	100cm
Central Ray	CR perpendicular to IR CR to exit at junction of the lips
Collimation	Collimate to area of mandible
Markers	Inferior and Lateral Marker orientation PA
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Suspend
Positioning	Patient is standing or sitting facing the upright bucky Rest patients forehead and nose against bucky Tuck chin in to bring orbitomeatal line (OML) perpendicular to IR Align midsagittal plane perpendicular to midline of bucky/grid Ensure no rotation of the head CR to exit at junction of the lips
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes