Sinuses - Waters view

From wikiRadiography
Jump to navigation Jump to search

Radiographic Positioning

Other related pages of interest

Name of projection Sinuses - Occipito Mental (Waters)
Area Covered Maxillary sinuses with inferior aspect visualised free from superimposing alveolar processes and petrous ridges, the inferior orbital rim and an oblique view of the frontal sinuses
Pathology shown Inflammatory conditions ie: sinusitis, secondary osteomyelitis and sinus polyps
Radiographic Anatomy Sinuses Radiographic Anatomy
IR Size & Orientation 18 x 24cm
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 exits at acanthion
Collimation Collimate closely to area of sinus cavaties
Markers Inferior and Lateral
Marker orientation PA
Shielding Gonadal (check your department's policy guidelines)
Respiration Suspended
  • The patient should be seated, facing the upright bucky.
  • The median sagital plane should be perpendicular to the cassette, this is done by checking the external audiatory meatuses (EAM) and the outer canthi of the eyes.
  • The patients mentum of the chin should be touching the upright bucky and sufficiently raised to bring the orbito-meatal baseline or radiographic baseline 45° from horizontal. Clearing the maxillary sinuses of the petrous ridge.
  • CR perpendicular to IR
  • CR exits at acanthion

Area Covered
Special Notes