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What is B 
greater tubercle
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What is A
greater tubercle (A)
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What is the Position what is the Xray of
External rotation (AP projection of humerus)
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Neutral rotation (oblique projection of humerus).
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What is the Position what is the Xray of
Neutral rotation (oblique projection of humerus).
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What is the Position what is the Xray of
Internal rotation (lateral projection of humerus).
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What is The Position and Part
Internal rotation (lateral projection of humerus).
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what is the position and part
External rotation (AP projection of humerus)
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What is the position and the part
External rotation (AP projection of humerus)
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explain what you see with a PA forearm
the radius crosses over the ulna at the elbow
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explain what you see with an AP forearm
You want to see the proximal wrist and elbow joints as well as distal humerus
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Tube angulation on a tangential projection of the carpal canal?
25-30 degrees
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Explain imaging criteria for a lateral forearm.
Lateral projection of entire radius and ulna, proximal row of carpal bones, elbow and distal end of humerus are visible as well as pertinent soft tissue such as fat pads and strips of the wrist and elbow joints. 70-75kV on digital, 11x14 IR small patients, 14x17 IR larger patients, 40" SID, detail screens, direct IR to midforearm
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Imaging criteria for AP shoulder.
AP projection of proximal humerus and lateral two thirds of clavidle and upper scapula, including relationship of the humeral head to the glenoid cavity. 40" SID, 10x12 IR crosswise, 75-85 kV, CR 1" inferior to corocoid process
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For most shoulder dislocations, the humeral head is displaced how?
anterior to glenoid cavity
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How much do you abduct the arm for a Lawrence method inferosuperior axial?
90 degrees
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Where do we center the CR for an AP shoulder?
1" below corocoid
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Know how epicondyles are positioned for AP humerus.
Parallel to IR and equidistant
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How is central ray projected for a PA clavicle?
15-30 caudal angle
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Where do you direct CR for PA hand?
third MCP joint
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What determines amount of axial projection of the clavicle for the patients habitus?
thin asthenic patients require 10-15 degrees more angle than do patients with thick shoulders and chest (hypersthenic)
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Look at Grashey method. Whats demonstrated?
Glenoid cavity should be seen in profile without superimposition of humeral head.
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Size of IR and orientation for shoulder projections?
- GRASHEY METHOD 8x10 , some are lengthwise some are crosswise
- AP PROJECTION 10x12
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What does capitulum articulate to?
head of radius
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What position? lesser tubercle in profile
medially with internal rotation (rotational lateral-lateromedial or mediolateral projections),
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greater tubercle is in profile
laterally in AP projection external rotation
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kV range for shoulder?
75-85 kV
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kV range for first finger?
55-60 kV
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What does distalization of posterior fat pad on elbow indicate?
changes within the joint space, joint pathologic process
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How much weight do you use for an AC joint study?
8-10lb minimum weights
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What would you do to reduce amount of superimposition of radial head with other structures?
rotate?
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WHAT IS A
Greater tubercle
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WHAT IS B
Head
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WHAT IS C
Anatomic neck
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WHAT IS D
Lesser tubercle
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WHAT IS E
Deltoid tuberosity
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WHAT IS F
Body
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WHAT IS G
Surgical neck
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WHT IS H
Intertubercular groove
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