Indications for imaging
? Fractured head of radius. equivocal on standard
projections.
|
Anatomy Demonstrated
Head of radius in profile without superimposition.
|
Basic Patient Position
Routine Lateral position
Patient
& Central ray Position for Radial Head
|
Radiation protection
The primary beam is directed towards the body,
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 central ray is angles 45 degrees to the film in the
direction of the long axis of the humerus and centered to pass
through he radial head
|
Exposure Factors
Kv |
mAS |
FFD (cm) |
Grid |
Focus |
AEC |
Cassette |
65 |
5 |
100 |
No |
Fine |
No |
18 x 24 cm |
|
Evaluation of the Image
ID and markers must be present and correct in the appropriate
area of the film
Limits of the examination, superiorly distal 3 cm humerus,
inferiorly proximal 3 cm forearm, laterally and medially
the skin surfaces.
Evidence of collimation on four sides equally around the centering
point
The radial head should be projected free of the humerus with
only minimal overlap of the ulna.
Exposure should be such that all bone and soft tissue detail is
clearly visible
Head of radius Rt Radiograph
|
Related Projections
Elbow AP
Elbow Lat
Elbow Axial
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Additional modalities
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