Zygomas - Slit TownesThis is a featured page

Radiographic Positioning


Adult
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Name of projection Zygomas - Slit TownesThis is a featured page
Area Covered Zygomatic arches (bilateral)
Pathology shown Fractures of zygomatic arch, neoplastic and inflammatory processes
Radiographic Anatomy Facial Bones Radiographic Anatomy
IR Size & Orientation 18 x 24cm
Landscape
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 30° caudal
CR to 2.5cm suoerior to glabella
Collimation Four sides of collimation
Collimate to outer margins of zygoma
Markers Superior and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
Respiration Suspended
Positioning
  • Patient is in an erect position, either standing or sitting
  • Position the patient so that their back and posterior skull are touching the bucky
  • Bring the patients chin down until the radiographic baseline Orbito Meatal Line (OML) is parallel to the floor, therefore perpendicular the bucky. If the patient is not able to do this, the central ray angle may have to be increased caudally so that there is a 30° angle between the radiographic baseline (OML) and the central ray.
  • Ensure the midsaggital plane is perpendicular to the bucky
  • Ensure the interpupillary line is parallel to the floor
  • CR 30° caudal
  • CR to 2.5cm superior to glabella
Critique

 Positioning
Area Covered
Collimation
Exposure
Special Notes



AndyC
AndyC 		Latest page update: made by AndyC , Jun 16 2011, 3:06 PM EDT (about this update About This Update AndyC Edited by AndyC

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Keyword tags: slit townes slit townes positioning slit townes technique zygoma
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Facial Bone Radiography Slit Basal and Teacup Views of the Zygoma Protocol - Zygomatic Arches