Zygomas - Arches (OM)

24 x 30cm
PortraitRadiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Zygomas - Arches (OM)
Area Covered
Pathology shown
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 angled 23° to 38° caudal. CR enters the vertex midway between the zygomatic arches.
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	The patient should be seated, facing the upright bucky. Rest the tip of the nose and chin on the upright bucky The median sagital plane should be perpendicular to the cassette, this is done by checking the external audiatory meatuses and the outer canthi of the eyes CR angled 23° to 38° caudal CR enters the vertex midway between the zygomatic arches.
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes