Indications for imaging
Trauma, loose bodies, bone pain,
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Anatomy Demonstrated
Anatomy of the Lt Elbow lat
Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy
Saunders, London
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Basic Patient Position
The patient sits alongside the end of the table with the
affected elbow flexed at 90 degrees and the hand rotated
externally into the true lateral position, the table
top should be raised to the level of the lower border of the axilla
so the whole arm is supported and parallel to the cassette. The
hand may need to be supported on a small pad to bring to
superimpose the humeral epicondyles.
Right Elbow Lateral Patient Position
Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy
Saunders, London
|
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.
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Central Ray
The vertical central ray is directed to the joint space
immediately distal to the palpable lateral humeral epicondyle,
(note this is lateral to the point midway between the skin
surfaces).
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Exposure Factors
Kv |
mAS |
FFD (cm) |
Grid |
Focus |
AEC |
Cassette |
70 |
6 |
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
Limits of the examination, superiorly distal 10 cm humerus,
inferiorly proximal 10 cm forearm, medially and laterally the
skin surfaces.
Evidence of collimation on four sides equally around the centering
point
The humeral epicondyles are superimposed and the joint space
visible.
The radial head surface should be lateral with approximately
half of the radial head superimposed on the ulnar.
The exposure should penetrate and demonstrate the bone
trabecular pattern of the superimposed humeral epicondyles, the
soft tissues must be demonstrated in order to demonstrate the
fat pads.
Elbow Rt Lateral
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Related Projections
Elbow AP
Elbow Head of Radius
Elbow Axial
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Additional modalities
MRI for joint and soft tissue structures |
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