1b. Clavicles Flashcards
What is the kV for clavicle projections
for with and without grid
70-75kV (w/ grid), 70-85kV (no grid)
what is the SID for clavicle projections
Which clavicle view is the exception for SID and what is the SID for this view
110cm
Bilateral clavicle AC joints = 180cm for less beam divergence)
Do you use a grid for clavicle projections
yes
what are the 2 points to consider when positioning a patient for the AP/PA Clavicle and Axial clavicle views
in terms of shoulder, IR, body positioning and IR centering
Post shoulder touching IR, no body rotation
Clavicle & IR centred to CR
What is the breathing technique for clavicle views
Suspend respiration at end of inhalation
What is the CP for a AP/PA Clavicle view
perpendicular to the mid-clavicle
What is the CP for a Axial Clavicle view
15-30* angled cranially, mid-clavicle
What are the 2 positioning evaluation things to look for in a AP clavicle view
in terms of distortion and superimposition
No foreshortening
Mid-clavicle superimposed on superior scapular angle
What are the 2 positioning evaluation things to look for in a axial clavicle view
in terms of scapula and ribs and superimposition
Clavicle projected above scapula, 2nd & 3rd rib
Medial clavicle superimposed by 1st & 2nd ribs
What is the area of interest evaluation things to look for in a AP clavicle view
Entire clavicle w/ both AC & SC joints
Acromion
What is the area of interest evaluation things to look for in a AP Axial
2 things and which 2 joints
Entire clavicle w/ both AC & SC joints
Acromion above scapula & ribs
What are the 4 positioning evaluation things to look for in a AP Bilateral AC Joints view
in terms of IR, arms, body rotation, centering of IR
Shoulders against IR, Arms down by sides
No shoulder/pelvis rotation
Looking straight ahead
Centre IR midline to CR (IR top 5cm above shoulders)
What is the CP for a AP Bilateral AC Joints view
perpendicular to the midpoint between AC joints
2.5cm above jugular notch
What are the 2 positioning evaluation things to look for in a AP Bilateral AC Joints view
in terms of plane, rotation indicators
Both AC joints on same horizontal plane
No rotation = symmetrical SC joints
What is the area of interest evaluation things to look for in a AP Bilateral AC Joints view
3 things
Both AC joints
Entire clavicles
SC joints included
