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50 Cards in this Set
- Front
- Back
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An external rotation places the proximal humerus in a ...... position
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true AP
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A neutral rotation places the proximal humerus in a ...... position
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oblique
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Identify the location of the lesser tubercle in a true AP position
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Anteriorly
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Name the 2 bones of the shoulder girdle
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clavicle and scapula
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name and identify the 3 main parts of the clavicle
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acromial extremity
sternal extremity shaft |
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what is the difference in size and shape b/w males and females clavicles
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female clavicles are shorter and less curved
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name the articulation between the humeral head and the scapula
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glenoid cavity/ scapulohumeral joint
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Name the fossa that articulates with the humeral head
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glenoid cavity (fossa)
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Name the areas of the anterior, posterior, and lateral scapula
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Acromion, Corocoid process, Scapular notch, Superior angle, Body, Inferior angle, Costal surface, Neck, Lateral angle, Glenoid cavity
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Name the angles and border of the scapula
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lateral angle, superior inferior angles, medial border, superior border, lateral border
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Hand placement for an external rotation of the shoulder
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supination of hand
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Hand placement for an internal rotation of the shoulder
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pronated hand
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hand placement for a neutral rotation of the shoulder
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palm facing inward
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the greater tubercle is seen in profile in which rotation
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external rotation
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The lesser tubercle is seen in profile in which rotation
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internal rotation
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Avg adult kVp range
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70-80
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Higher..... with ..... exposure times
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mA / short
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.....AEC cell
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Center
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Minimum ...... inches SID; except use..... inch SID for ..... joints
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40 / 72 / AC joints
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Shielding is
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mandatory
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Close ..... required due to proximity to thyroid, lungs, and breast
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collimation
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What rotations allows for humeral epicondyles angled 45 degrees to image receptor
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neutral rotation
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What rotation allows for epicondyles perpendicular to IR
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Internal rotation
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Supination of the hand is what rotation
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External rotation
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Palm of hand against thigh is what rotation
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neutral rotation
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Epicondyles parallel to IR is what rotation
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External rotation
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Greater tubercle profiled laterally is what rotation
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external
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lesser tubercle profiled medially is what rotation
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internal rotation
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proximal humerus in a lateral position is what rotation
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external rotation
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proximal humerus in position for an anteroposterior (AP) projection
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external rotation
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t/f The use of a grid is not required for shoulders that measure less than 10cm
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true
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t/f the kV range for adult shoulder projections is between 80 and 90 kV
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false
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t/f low mA with short exposure times should be used for adult shoulder studies
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false
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t/f large focal spot setting should be selected for most adult should studies
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false
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t/f a high-speed screen-IR system is recommended for shoulder studies when using a grid
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true
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t/f a 72 inch SID is recommended for most shoulder girdle studies
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false
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t/f the use of contact shields over the breast, lung, and thyroid regions is recommended for most shoulder projections.
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true
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What is the kV range that should be used for the shoulder series on an average adult.
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70-80kV
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if physical immobilization is required, who should be asked to restrain a child for a shoulder series
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parent or gaurdian
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t/f CT arthrography of the shoulder joint requires the use of iodinated contrast media injected into the joint space
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true
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t/f MRIk is an excellent modality for demonstrating nondisplaced fractures of the shoulder girdle
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false
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t/f nuclear medicine bone scans can demonstrate signs of osteomyelitis and cellulitis
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true
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t/f radiography is more sensitive than nuclear medicine for demonstrating physiologic aspects of the shoulder girdle.
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false
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t/f ultrasound can provide a functional evaluation of joint movement that MRI cannot
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true
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which pathologic indication requires a decrease in manual exposure factors?
a. impingement syndrome b. bursitis c. bankart lesion d. osteoporosis |
osteoporosis
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which two basic shoulder projections are routinely taken for a shoulder and proximal humerus
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AP internal rotation/ AP external rotation
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Where is the CR placed for an AP projection of the shoulder?
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scapulohumeral joint
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Which lateral projection can be performed to demonstrate the entire humerus for a patient with a midhumeral fracture?
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transthoracic
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To best demonstrate a possible Hill-Sachs defect, which additional positioning technique can be added to the inferosuperior axial projection?
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rotate affected arm externally 45 degrees
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What type of CR angulation is required for the inferosuprerior axial projection for the shoulder?
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25-30 degrees medially
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