Imaging of the Brain Flashcards Preview

Hugh's MD1 Neuro > Imaging of the Brain > Flashcards

Flashcards in Imaging of the Brain Deck (11):
1

Is fluid bright in T1 or T2 wieghted images?

T2

2

What is measured in nuclear medicine?

Metabolic activity

3

What are some techniques that can used to image arteries?

Digital substraction angiography

CT angiography

4

When do you use xrays on the skull?

Skull bony lesions

4

What is substracted angiography?

Where a view of vessels is isolated by substracting other features 

4

Are T2 weighted MRI images better for pathology or anatomy?

Pathology

7

How do functional MRI's work?

Highlight areas of increased O2 as a reflection of their activity

8

How do grey and white matter appear on CTs?

Very similar

9

When are ultrasounds used?

In neonates or during surgery when skull is removed

10

Are T1 weighted MRI images better for pathology or anatomy?

Anatomy

11

What are the pro's and con's of CTs for the skull?

Pros: 

Fast

Better than MRI for air and bone

Patients can remain connected to everything

 

Cons:

Radiation

Skull casts a shadow