Elbow - External Oblique

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 PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes

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