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60 Cards in this Set
- Front
- Back
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2 names for view of the scaphoid
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*PA Axial Projection
*Stecher Method |
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angulation for stetcher
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*CR 20 deg toward the elbow
OR *finger end of IR elevated 20 deg. |
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Center the ____ to the IR for stetcher
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wrist
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For Stecher, position the wrist in _____ to see the _____.
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*ulnar deviation
*open navicular space |
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For Stecher, CR is perpendicular to ____.
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the table
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Structures shown on Stecher
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the scaphoid at right angles to the CR
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2 names to view the carpal canal
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*Tangential Projeciton
*Gaynor-Hart Method |
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Pt position for Gaynor-Hart
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seated @ end of table with forearm lying parallel with long axis of film
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For Gaynor-Hart, ____ the wrist and center the IR to ____.
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*hyperextend,
*at the level of the radial styloid process |
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For Gaynor-Hart, make the ___ axis of the hand as ___ as possible.
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*long
*vertical |
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On Gaynor-Hart, why do you rotate the hand slightly toward the radial side?
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to prevent superimposition of the shadows of the hamate and pisiform bones
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Angulation for Gaynor-Hart
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25 to 30 deg
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CR for Gaynor-Hart
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the palm of the hand 1" below base of third metacarpal
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Structures shown on Gaynor-Hart
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*the carpal canal
*the entire pisiform |
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2 parts of partial flexion for the elbow
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*distal humerous
*proximal forearm |
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When do you use the partial flexion for elbow?
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when pt cannot completely extend the elbow
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Position of pt for partial flexion elbow views.
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seated with hand supinated, humerous in same plane for upper view
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For partial flexion elbow, what surface of forearm touches the IR?
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dorsal
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For partial flexion elbow, what must you do with the forearm for the lower view?
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Support with sponge or raise the table.
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2 names for method udes when trauma exists and the arm cannot be rotated or abducted.
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*Transthoracic Lateral Projection
*Lawrence Method |
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Film size for both Lawrence methods
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10*12
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Position of pt for transthoracic
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Pt seated or standing in lateral position
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Position of part for transthoracic lateral and why.
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Have pt raise unijured arm above head bc this drops the injured side.
***NO attempt should be made to move injured arm*** |
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Respiration for transthoracic lateral.
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Deep inspiration
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On Transthoracic, name two things that having the pt's lungs full of air helps.
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*it improves contrast
*It decreases the exposure necessary to penetrate the body. |
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What is another breathing technique for the Transthoracic?
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Instruct pt to practice slow, deep breathing. A min exposure time of 3 sec works well with this.
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CR on a transthoracic lateral.
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Perpendicular to the IR, entering the midcoronal plane at the level of the surgical neck
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On transthoracic, what exposure is used with lungs full of air.
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66 kvp phototime
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Film placement on transthoracic lateral.
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2" above the already lowered injured shoulder.
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2 names for abducted shoulder view.
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*Inferosuperior axial projection
*Lawrence Method |
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On InfSup projection, you do not have to use a grid if you do not go over ___ kV.
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60
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On InfSup projection, position of pt.
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*supine
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On InfSup projection, what do you need to elevate.
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Pt head, shoulder, and elbow
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On InfSup projection, position of part.
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*abduct arm of affected side at right angles to long axis of body
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On InfSup axial projection, keep the humerous in what position?
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external rotation
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On InfSup axial projection, what is the placement of the IR?
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On edge against the shoulder as close as possible to the neck.
***Have pt turn head away*** |
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Techniques to use on InfSup axial projection.
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girl- 8@60
boy- 12@60 |
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Structures shown on InfSup axial projection.
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*proximal humerous
*the scapulohumeral joint |
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CR for InfSup axial projection
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*horizontally thru axilla
*deg of medial angulation depends on deg of abduction of arm....15-30 deg |
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On InfSup axial projection angulation, the greater the abduction, the ____ the angle
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greater
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Two names for view of Glenoid cavity
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*AP Oblique Projection
*Grashey Method |
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Film size for Grashey
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8*10 crosswise
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Postion of pt on a Grashey
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RPO or LPO supine or upright
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Postion of part for a Grashey
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Rotate body 45 deg toware affected side
Abduct arm slightly in internal rotation |
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Center the IR to ____ on a Grashey
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scapulohumeral (glenohumeral) joint
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CR on a Grashey
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Perpendicular to glenoid cavity.
2" medial and 2" inferior to the superolater border of shoulder. |
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What projection do we do for the intertubercular groove?
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Tangential projection
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The IT groove lies on the ____ surface of the humerous.
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anterior
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Film size for Tangential of IT Groove.
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8*10
***use a cone*** |
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Postion of part on Tang. of IT Groove.
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*Supinate pt's hand
*Pt supine |
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CR for Tang. of IT Groove
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Angled 10-15 deg (downward from horizontal) to the long axis of the humerous
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Two names for showing the acromioclavicular articulations.
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*AP Projection-Bilateral
*Pearson Method |
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Film size for Pearson
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14*17 crosswise
***collimate*** |
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SID for Pearson and why?
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72" to reduce mag and show both joints on one image
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Why should pt be upright for the Pearson Method?
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Dislocation of the AC joints tends to reduce itself when pt is recumbant.
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IR placement for Pearson
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IR midpoint should lie at the same level of the AC joints
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Exposures for Pearson
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*One without weights
*One with weights attached to wrist (5-8lbs) |
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Film size for the Coracoid AP Axial
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8*10
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Positioning for Coracoid AP Axial
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*supine
*center affected coracoid to IR *supinate the hand |
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CR for the Coracoid AP Axial
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10-15 deg cephalad
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