Imaging the Thorax Flashcards Preview

Week 6: Pneumonia and Cough > Imaging the Thorax > Flashcards

Flashcards in Imaging the Thorax Deck (13):
1

What views can
1. X ray
2. CT
give you?

1. Frontal, lateral
2. Coronal, Sagittal, Axial

2

AP or PA for CXR? Why?

PA is standard
Because in AP, the heart will be magnified and distort the image

3

How far do you want the patient to breath in for an X-ray

So the diaphragm is below ribs 8-10
You can see ribs 9-10 posteriorly

4

How to tell between posterior and anterior ribs

Posterior ribs: more horizontally and extend all the way medially
Anterior: obliquely angled towards the heart

5

Costodiaphragmatic recess

Pleural space at the bottom of the lungs
Fluid can collect here because of gravity
Should be sharp

6

Thoracocentesis

Under ultrasound guidance
Needle is inserted into the fluid and the fluid is sampled and sent to the lab for analysis

7

Pneumothorax

Air collected in the pleural space
Surgical emergency
May interfere with normal breathing

8

Fissures in the right lung

Major (oblique) and minor (horizontal)

9

Left lung fissure

Major (oblique)

10

Consolidation

When the air in the alveoli has been replaced by blood, pus, water, protein, or cell debris

11

Septal thickening

Interstitial disease
The scaffolding surrounding the alveoli is abnormal
Can be due to edema, inflammation, or fibrotic thickening

12

Silhouettes

Clean, well defined margins of the heart and dome of diaphragm

13

Silhouette sign

Loss of the silhouette indicates there is consolidation in the adjacent parenchyma