Radiology

Question 1

What do you look at first on a CXR?

Answer 1

Mediastinal Contour

• tracheal central?
• aortic arch
• left pulmonary artery
• left atrium
• left ventricle

Question 2

Where should the hear sit?

Answer 2

2/3 left (no more than 1/2 chest cavity)

1/3 right

Question 3

What do you look at with regards to lung shape?

Answer 3

Costophrenic angels - V shape

Cardiophrenic angles

Question 4

What are the technical details of a CXR?

Answer 4

M or F
Old or young
Good inspiration?
Good penetration?
Rotation?

PA or AP?

Question 5

What would show good inspiration

Answer 5

Diaphragms at least at level of 6th ribs anteriorly

Question 6

How can you judge rotation?

Answer 6

Medial ends of the clavicle

Spinous processes

Question 7

Give a chest summary for a normal patient

Answer 7

Trachea is central
Mediastinum is not displaced
Mediastinal contours and hila appear normal
Lungs appear clear with no pneumothorax
The bones are soft and tissue seems normal

Question 8

What are common review areas on a CXR?

Answer 8

Apices
Periphery of lungs
Under hemidiaphragm
Behind the heart

Question 9

What can cause mediastinal shift?

Answer 9

Pleural effusion pushes away

Tension pneumothorax pushes away

Collapse pulls trachea towards

Question 10

Causes of cardiomegaly?

Answer 10

Carditis 
LVH
Congestive heart failure 
Athleticism
Pericardial effusion

Question 11

What are sign of LVH?

Answer 11

Kerley B lines
Bats wings
Alveolar shadowing
Upper lobe diversion

Question 12

What are Kerley b lines?

Answer 12

Tiny horizontal from pleural edge

Look like fine hair

Question 13

What are bats wings?

Answer 13

Type peri-hilar haziness