Transcript Bony Thorax Spokane Community College Radiology Film Critique 1 Manubrium 3 Body Xiphoid 7911 RIBS • • • • • Routine views : AP above AP below RPO of the affected side LPO of the affected side Structures shown: • AP.

Bony Thorax
Spokane Community College
Radiology Film Critique
1
Manubrium
2
3
4
Body
5
Xiphoid
6
7
8
9
10
11
12
RIBS
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Routine views :
AP above
AP below
RPO of the affected side
LPO of the affected side
Structures shown:
• AP projection shows the posterior ribs,
above or below the diaphragm
Good film
• For AP upper ribs: Posterior ribs 1-10 above the
diaphragm, both sides should be seen above the
diaphragm and include in their entirety
• For AP lower ribs: Posterior ribs 8-12 below the
diaphragm, both sides should be seen below the
diaphragm and include in their entirety
• Ribs should be seen clearly through the lungs or
abdomen according to the region examined. The
AP views are done to see the bodies of the ribs.
Structures Shown:
• RPO/LPO in this projection the axillary portion of
the ribs are projected free of self-superimposition.
The posterior ribs are also well demonstrated.
LPO
Left side down
Grashey
Scap “Y”
RPO
Upper
Ribs
Right side down
RPO
Lower
Ribs
Is the
Respiration
Phase correct?
LPO lower ribs
LPO lower ribs
LT
Good film:
• There should be approximately twice as
much distance between the vertebral
column and the outer border of the ribs on
the affected side as there is on the
unaffected side
• Axillary portion of the ribs should be
demonstrated free of superimposition
Sternum
• Routine views:
• RAO
• Lateral
What is shown:
• RAO method shows a slightly oblique PA
projection of the sternum. The breathing
motion obliterates the pulmonary markings
Structure shown: The entire sternum from
jugular notch to tip of xiphoid
RAO
Good Film:
• Entire manubrium to the tip of the xiphoid
should be included
• Visibility of the sternum through the thorax
should be reasonably good
• Sternum should be projected just free of
superimposition from vertebral column
• Sternum should be projected into the
cardiac shadow
• **Breathing technique: to blur pulmonary
markings
Structure shown:
• Lateral projection of the entire length
of the sternum is demonstrated showing the
superimposed sternoclavicular joints and
medial ends of the clavicles
Sternoclavicular Articulations:
• RAO
• LAO
• Axiolateral-Kurzbauer method of the
affected side (not in book)
Structures shown:
• This method presents a slightly oblique
projection of the sternoclavicular joints.
Shows the joint closer to the film with less
distortion.
**LAO: Left side down: The joint closest to the
IR is shown (left)
LEFT
LAO
Good film:
• SC jnts of interest should be in the center of the
film (down side)
• Manubrium and medial ends of clavicles should
be included
• SC jnts space should be open
• SC jnts of interest should be directly in front of the
vertebral column with minimal obliquity
• Visibility of the SC jnt through the superimposing
rib and lung fields should be reasonably good
Adjust the position of the cassette so that
its midpoint will coincide with the CR.
Respiration is suspended at the end of full
inhalation.
Direct the CR through the lowermost
sternoclavicular articulation at an angle of 15
degrees caudal.
Structures shown: This method presents an unobstructed lateral projection
of the sternoclavicular articulation adjacent to the film
Good film:
• SC jnt of interest should be demonstrated
• Shoulders should not superimpose the SC
articulations.