Hand - Bone AgeThis is a featured page

Radiographic Positioning


Paediatric
Other related pages of interest

Name of projection Hand - PA
Area Covered Hand, wrist and 2.5cm of distal forearm
Pathology shownEstimate of the maturity of a child's skeletal system
Radiographic AnatomyHand Radiographic Anatomy
IR Size & Orientation 18x 24cm or 24x 30cm as required
Portrait
Film / Screen Combination Detail
(CR and DR as recommended by manufacturer)
Bucky / Grid No
FilterNo
Exposure 48 KvP
2 mas
FFD / SID 100cm
Central Ray Directed to 3rd metacarpophalangeal joint
Perpendicular to the IR
Collimation Centre: 3rd metacarpalphalangeal joint
Shutter A: Includes all of the distal phalanges to 2.5cm (1 inch) of the distal ulna and radius
Shutter B: To include soft tissues
Markers Distal and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
RespirationNot applicable
Positioning
  • Patient seated at end of table
  • Elbow flexed to 90°
  • Hand pronated
  • Hand and forearm resting on table
  • Place IR under hand
  • Palm in contact with IR
  • Fingers spread slightly
  • Centre to 3rd metacarpophalangeal joint
Critique

Positioning
  • Digits and metacarpals are demonstrated in the PA projection by
    1. Uniformity of the soft tissue of digits two through to 5
    2. Metacarpal heads are equally spaced for digits two through to five
    3. Equal concavity of the midsgafts of the phalanges and metacarpals of digits two through to five
  • No soft tissue overlap of the digits
  • The following joint spaces are open
    1. Interphalangeal
    2. Metacarpophalangeal
    3. Carpometacarpal
  • Long axis of hand is aligned with axis of IR
  • Thumb is demonstrated at a 45º angle
Area Covered
  • Entire hand, carpals and 2.5cm of the distal radius and ulna
Collimation
  • Outer skin margins of hand on four sides and including 2.5cm of the distal forearm
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, 2:31 PM EDT (about this update About This Update AndyC Edited by AndyC

2 words added
5 words deleted

view changes
- complete history)
Keyword tags: bone age bone age positioning bone age technique hand positioning
More Info: links to this page

Threads for this page

There are no threads for this page.  Be the first to start a new thread.

Related Content

  (what's this?Related ContentThanks to keyword tags, links to related pages and threads are added to the bottom of your pages. Up to 15 links are shown, determined by matching tags and by how recently the content was updated; keeping the most current at the top. Share your feedback on Wetpaint Central.)
Hand - Ballcatchers Hand - Lateral Hand - Oblique
Hand - PA Male Bone Age (0-2 yrs) Male Bone Age (2-5 yrs)