Hand - Oblique
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Hand - PA oblique |
Area Covered | Phalanges, metacarpals, carpals and 2.5cm of the distal radius and ulna |
Pathology shown | Fractures, dislocations, foreign bodies. Pathological processes - osteoporosis and osteoarthritis. |
Radiographic Anatomy | Hand Radiographic Anatomy |
IR Size & Orientation | 24 x 30cm Landscape, divided in half, usually fits 2 projections, use lead masking for unused area |
Film / Screen Combination | Detail (CR and DR as recommended by manufacturer) |
Bucky / Grid | No |
Filter | No |
Exposure | 52 kVp 2.5 mAs |
FFD / SID | 100cm |
Central Ray | Directed to 3rd metacarpophalangeal joint Perpendicular to the IR |
Collimation | Centre: 3rd metacarpophalangeal joint Shutter A: To include distal phalanges to 2.5cm of distal radius and ulna Shutter B: To include soft tissues of the first and fifth fingers |
Markers | Distal and Lateral Marker orientation AP |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Not applicable |
Positioning |
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Critique | Positioning
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Special Notes | Over rotating the hand results in the superimposition of the 4th and 5th metacarpals |