Elbow - External ObliqueThis is a featured page

Radiographic Positioning


Adult
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Name of projection Elbow - External Oblique (Lateral Rotation)
Area Covered Distal humerus, elbow joint space, proximal radius and ulna
Pathology shown Fractures, joint effusion, dislocation, radial head and neck, bone lesions, foreign bodies.
Radiographic Anatomy Elbow Radiographic Anatomy
IR Size & Orientation 18 x 24cm
Landscape, divided in half, usually fits 2 projections
Film / Screen Combination Detail
(CR and DR as recommended by manufacturer)
Bucky / Grid No
Filter No
Exposure 52 kVp
5 mAs
FFD / SID 100cm
Central Ray To the middle of the elbow - 2cm distal to the midpoint of a line between the epicondyles
Perpendicular to IR
Collimation Four sides of collimation
Collimate on sides to the soft tissue borders
Lower margin to include proximal radius and ulna, Upper margin to include distal humerus
Markers Distal and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
Respiration Not applicable
Positioning
  • Patient seated at end of table
  • Arm fully extended, shoulder and elbow on the same horizontal plane
  • Supinate hand and align forearm to long axis of IR
  • Rotate the entire arm laterally so the distal humerus and the anterior surface of elbow joint is 45° to IR (palpate epicondyles to determine rotation)
Critique

Positioning
Area Covered
Collimation
Exposure
Special Notes



AndyC
AndyC
Latest page update: made by AndyC , Jun 18 2011, 10:50 PM EDT (about this update About This Update AndyC Edited by AndyC

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