Radiology 3: Thoracic imaging Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

options for imaging?

A
CXR
US
fluoroscopy 
CT
VQ
PET CT
MRI
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the radiation for CXR?

A

0.014mSv

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the outcomes of having a AP CXR?

A

cardiac magnification, rotation, lordosis, poor inspiration, scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the indications for US?

A

safe pleural drainage
diaphragm function
pleural and peripheral lung biopsy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

fluoroscopy indications?

A

NG tube placement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

CT indications

A
CTPA
HRCT
Staging lung - lung cancer 
tracheal imaging 
lung/mediastinal biopsy 
occasional pleural drain placement 
tumour ablation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

V/Q scan indications

A

PE if:
pregnant
allergy to iodine contrast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

cons of V/Q?

A

less available

limited additional information

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What score is used for PE ?

A
Wells Score 
Clinical signs/symptoms of DVT	3
PE is the most likely diagnosis	3
Tachycardia >100bpm	1.5
>3 days immobility or surgery in the last month	1.5
Previous DVT/PE	1.5
Haemoptysis	1
Malignancy	1
Clinical probability	
PE likely	>4 points
PE unlikely	4 or less points
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what should we advise patients 6 hours before PET/CT

A

only water 6 hours before

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

how does PET CT work?

A

uptake of glucose.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

when should PETCT be avoided?

A

pregnant women, young children, claustrophobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

MRI indications

A
cardiac mostly 
apical lung tumour 
paravertebral lesions 
thymic hyperplasia 
PE in pregnancy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the silhouette sign?

A

looking for loss of silhouette when there is touching structures of the same density.
Can identify pneumonia, lobar collapse and masses.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

how can we tell alveolar shadowing?

A

fluffy
ill defined margins
lobar or segmental
air bronchograms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how can we tell interstitial shadowing?

A

linear/ reticular

nodular

17
Q

what are bullae ?

A

Large airspaces