Shoulder - Inferosuperior (IS) Axial (West Point Method)This is a featured page

Radiographic Positioning

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Name of projection Shoulder - Inferosuperior (IS) Axial (West Point Method)
Area Covered Proximal humerus, lesser tubercle of humerus, coracoid process of scapula, scapulohumeral joint
Pathology shownFractures and or dislocations of the proximal humerus, oesteoporosis, osteoarthritis, Hill-Sachs defect
Radiographic AnatomyShoulder Radiographic Anatomy
IR Size & Orientation 18 x 24cm
Film / Screen Combination Detail
(CR and DR as recommended by manufacturer)
Bucky / Grid No
Exposure 55 kVp
8 mAs
FFD / SID 100cm
Central Ray CR directed 25° anterior and 25° medially through the midscapulohumeral joint
Collimation Four sides of collimation
To the shoulder joint
Markers Anterior and lateral
marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
PositioningWest Point Method
  • Patient prone on the X-ray table
  • Abduct affected arm away from the body 90° if possible, with elbow flexed to allow forearm to hang freely over side of table
  • Rotate the head away from the affected side
  • Place IR against the superior surface of the affected shoulder
  • CR directed 25° anterior and 25° medially through the midscapulohumeral joint
This view may also be performed supine using the Lawrence method

Area Covered
Special Notes

Latest page update: made by AndyC , Jun 18 2011, 6:48 AM EDT (about this update About This Update AndyC Edited by AndyC

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