Clavicle/Scapula/AC joints RAD 1 positioning Flashcards
What IR is used for an AP Clavicle?
10 x 12
Where does the CR enter for an AP clavicle?
Midshaft of clavicle
What breath is the AP clavicle taken on?
Expiration
Can the AP clavicle be done?
AP & PA
What structures are seen in an AP clavicle?
- The entire clavicle
- AC & SC joints
- Medial aspect of the clavicle superimposed over the thorax
- Lateral aspect of clavicle projected above scapula
What IR used for an AP axial clavicle?
10 x 12
What angle is used for AP axial clavicle?
15-30 degrees cephalic
What do thin (asthenic) patients require for an AP axial clavicle?
10-15 degree increase in angle
Where is the CR for an AP axial clavicle?
Midshaft of clavicle appearing to enter just below
What breath is the AP axial clavicle taken on?
Inspiration
Which way can the AP axial clavicle be taken?
AP & PA
Which way does the angle go for a PA axial clavicle?
Caudal
What structures are seen in an AP axial clavicle?
- Entire clavicle is seen
- AC & SC joints are seen
- Clavicle is more horizontally
- Demonstrates displacements of fractures
What IR is used for an AP scapula?
10 x 12
Which way can an AP scapula done?
Both upright and supine
How much is the arm abducted for an AP scapula?
90 degrees
Where is the CR located for an AP scapula?
2” inferior to coracoid process
What breath is the AP scapula taken?
Slow breathing
Why is the AP scapula taken during slow breathing?
To obliterate lung detail
What structures are seen in an AP scapula?
- Lateral border of scapula is free of superimposition from the ribs
- Scapula superimposed by lung and ribs
- Scapula horizontal and not slanted
- Includes acromion process to inferior angle
What IR is used for a lateral scapula?
10 x 12
Which way can the lateral scapula be done?
upright or supine
what angle should you rotate the patient into LAO/RAO position?
45-60 degrees
Where is the arm placed for a lateral scapula?
across upper chest
What does placing the affected arm across the chest do during a lateral scapula?
demonstrates the body of the scapula
Where is the CR for a lateral scapula?
Perpendicular to the lateral and medial borders of the scapula
What breath is the lateral scapula taken on?
suspended respiration
What will RPO/LPO position for a lateral scapula do?
Will increase magnification
What is an alternative position for a lateral scapula?
Place arm behind back
What does placing the arm behind the back for a lateral scapula do?
Demonstrates the acromion and coracoid processes
What structures are seen for a lateral scapula?
- Medial and lateral scapular borders superimposed
- Scapular body free of superimposition by the ribs and humerus
- Includes acromion process to inferior angle
What IR is used for an AP oblique scapula?
10 x 12
Which way can an AP scapula be done?
Upright or supine
Which way is the patient turned for an AP oblique scapula?
15-25 degrees from affected side
Where is the CR for an AP oblique scapula?
Perpendicular to lateral border of rib cage at midscapular are
What breath is the AP oblique scapula taken on?
Suspended respiration
What structures are seen for an AP oblique scapula?
- Oblique scapula
- Demonstrates acromion process and inferior angle
- lateral border of scapula adjacent to ribs
What IR is used for Bilateral AC joints?
14 x 17
What IR is used for a unilateral AC joint
10 x 12
What SID is used for scapula and clavicle views?
40”
What SID is used for AC joints?
72”
Where is the CR for a bilateral AC joints?
Perpendicular to midline at level of AC joint or 1-1 1/2” above jugular notch
Where is the CR for a unilateral AC joint
Perpendicular to AC joint
What breath are the AC joints taken?
Suspended respiration
What is another name for AP AC joints?
Pearson method
What structures are seen for AP AC joints?
- AC joints visualized without separation or excessive density
- Should always be done bilaterally when possible
- Demonstrates dislocation, separation, and joint function
How many views are done for AC joints?
2
The 1st view for an AC joint is performed ______ weights
Without
The 2nd view for an AC joint is performed _____ weights
with
How heavy should the weights be for an AC joint?
5-10 Ib
