Abdomen - Lateral

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Radiographic Positioning

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Name of projection Abdomen - Lateral
Area Covered Diaphragm and as much of the lower abdomen as possible
Pathology shownAbnormal soft tissue masses, umbilical hernia, aneurysm of aorta, calcification of vessels
Radiographic AnatomyAbdomen Radiographic Anatomy
IR Size & Orientation 35 x 43 cm
Film / Screen Combination Regular
(CR and DR as recommended by manufacturer)
Bucky / Grid Moving or Stationary Grid
Exposure 85 kVp
40 mAs
FFD / SID 100 cm
Central Ray CR perpendicular to IR
Centre to midcoronal plane - 5cm above iliac crest
Collimation Collimate closely to upper and lower abdomen soft tissue borders
Close collimation is needed because of the increased scatter and the need for soft tissue visibility
Markers Anterior and Inferior
Marker orientation AP
Shielding Gonadal on males (check your department's policy guidelines)
RespirationSuspended on expiration - this lifts the diaphragm and presents the abdominal contents in a more relaxed state. (check your departmental technique protocol)
  • Patient lateral recumbent position (laying on their side)
  • Make sure there is no rotation of the torso
  • Ensure there are no artefacts, such as zips or buttons over the area being imaged
  • CR perpendicular to IR
  • Centre to midcoronal plane - 5cm above iliac crest

Area Covered
Special Notes