Hand

Dorsi-Palmar

Indications for imaging
Injury, ? rheumatoid arthritis, ?acromegaly, bone pain.

 

Anatomy  Demonstrated

Hand Rt Anatomy
Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy Saunders, London

 

Basic Patient Position
The patient sits alongside the end of the table elbow flexed palm downwards, or at the end of the table with he elbow flexed at 90 degrees, hand and wrist flat on the cassette the elbow may need a small pad to promote contact of the hand with the cassette. The fingers can be spread slightly.

Hand Rt DP Patient Position

 

Radiation protection
Direct lead rubber gonad protection using a "half apron".
Ensure the lower limbs and torso are not below the table top in the primary beam.

 

Central Ray
The vertical central ray is directed tot he head of the third metacarpal.

 

Exposure Factors
Kv mAS FFD (cm) Grid Focus AEC Cassette
55 5 100 No Fine No 24 x 30 cm

 

Evaluation of the Image
ID and markers must be present and correct in the appropriate area of the film
Evidence of collimation on four sides equally around the centering point.
Limits of the examination, proximally the radio and ulna carpal joints, distally the tips of the distal phalanges, laterally the skin margins of first and fifth digits.
metacarpo phalangeal joints should be open and the shafts of the second to fifth metacarpals should be symmetrical.
Exposure, adequate penetration to visualise all bone detail and low enough contrast to visualise the soft tissues.

Hand Rt DP
http://www.vh.org

 

Related Projections
Hand DP "Ball catching for rheumatoid) 
Hand DP Oblique
Fingers Lat.
Thumb AP
Thumb Lat. Wrist AP
Wrist Lat
Wrist Oblique
Wrist AP Angled for Scaphoid

 

Additional modalities
RNI may be helpful in some conditions.