Wrist Joint

12

description

PA OBLIQES LATERAL CARPAL TUNNEL. Basic Projections. Wrist Joint. PA WRIST JOINT. Exposure Factors. Patient position Seated at end of radiographic table Apply lead shielding for Radiation safety Par t position Forearm resting on table top Axilla contact with table - PowerPoint PPT Presentation

Transcript of Wrist Joint

Page 1: Wrist Joint
Page 2: Wrist Joint

• Wrist Joint

Basic Projections

o PAoOBLIQESoLATERALoCARPAL TUNNEL

PA WRIST JOINTExposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 4 100 No Fine 18 x 24 cm

Page 3: Wrist Joint

• Patient position • Seated at end of radiographic table• Apply lead shielding for Radiation safety

• Par t position • Forearm resting on table top• Axilla contact with table• Center carpals to mid cassette• Flex fingers slightly Central Ray PerpendicularCenter Point To mid carpal area

Page 4: Wrist Joint

• Structures shown• Mid and proximal metacarpals, carpals• Distal radius & ulna and associated joints

Wrist Joint

Page 5: Wrist Joint

• Oblique wrist joint

Exposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 4 100 No Fine 18 x 24 cm

Patient position Seated at end of radiographic table

Apply lead shielding for Radiation safety Part position Forearm resting on table top with Hand in lateral position Axilla contact with table Center carpals to mid cassette rotate hand medially 45 degrees

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• Structures shown• Distal radius &ulna• Carpals especially trapezium and Scaphoid with slight

superimposition Of other carpals

Page 7: Wrist Joint

• Lateral wrist joint

Exposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

65 5 100 No Fine 18 X 24 CM

Patient position

Seated at end of radiographic tableApply lead shielding for Radiation safetyPart position Forearm resting on table top with Hand and wrist in lateral position Axilla contact with table with elbow Flexed 90 degreesCenter carpals to mid cassetteCentral Ray Perpendicular

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• Center Point

To wrist joint

• Structures shown• Distal radius and ulna superimposed• Carpals and mid metacarpals superimposed

Page 9: Wrist Joint

•PA wrist With ulnar deviation ( Scaphoid) • Exposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

65 5 100 No Fine 18 X 24 CM

Patient position

Seated at end of radiographic tableApply lead shielding for Radiation safetyPart position

Forearm resting on table top withAxilla contact with table & elbow Flexed 90 degreesPalmar of hand contact with table Center carpals to mid cassetteRotate wrist joint towards ulna

Page 10: Wrist Joint

• Central Ray

Perpendicular

• Center Point

To Scaphoid

• Structures shown Scaphoid separated from other carpals

Scaphoid View

Page 11: Wrist Joint

•Carpal Tunnel (wrist)

Exposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

65 5 100 No Fine 18 X 24 CM

Patient Position

Patient standing or seated at table endAsk patient to lean over and place palmar Surface of hand on cassettePart position

Center palmar surface of carpals to cassetteHand and forearm near to 90 degrees angulation to cassette

Page 12: Wrist Joint

• Central Ray

Perpendicular• Center Point

Mid point of the distal forearm ( 4 cm proximal to wrist joint)

Structure Shown:- Dorsal aspect of Scaphoid, lunate and trapezium Outline of the capitate and trapezium superimposed