Hand - AP Axial (Brewerton's)This is a featured page

Radiographic Positioning


Adult
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Name of projection Hand - AP Axial (Brewerton's)
Area Covered Phalanges and metacarpal heads
Pathology shownTo show erosions of the metacarpal heads and the bases of the phalanges from rheumatoid arthritis
Radiographic AnatomyHand Radiographic Anatomy
IR Size & Orientation 18 x 24cm
Portrait
Film / Screen Combination Detail
(CR and DR as recommended by manufacturer)
Bucky / Grid No
FilterNo
Exposure 50kVp
2.5 mAs
FFD / SID 100cm
Central Ray CR angled 20°laterally and to the head of the third metacarpal
Collimation Four sides of collimation
Shutter A: Includes all of the distal phalanges to carpal bones
Shutter B: To include soft tissues
Markers Distal and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
RespirationNot applicable
Positioning
  • The patient stands alongside the end of the table
  • Elbow extended with palm upwards
  • Hand flexed 40° at the metacarpo phalangeal joints
  • Posterior aspect of the fingers in contact with the cassette, and the wrist supported as required
Critique

Positioning
  • Shafts of the second to fifth metacarpals should be symmetrical.
The following joint spaces are open
  • Metacarpophalangeal
  • Interphalangeal
Area Covered
  • Phalanges (distal, intermediate, proximal), metacarpals and carpals bones
Collimation
  • Four sides of collimation
  • Include distal phalanges and carpal bones
Exposure
  • Bony trabecular patterns and cortical outlines are sharply defined
  • Soft tissues are visualised
Special Notes



AndyC
AndyC 		Latest page update: made by AndyC , Jun 17 2011, 2:29 PM EDT (about this update About This Update AndyC Edited by AndyC

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