0805 - CNS imaging Flashcards
1
Q
What are the most valuable imaging modalities for imaging the CNS?
A
Ultrasound and MRI good for no radiation (but ultrasound of limited use in adults).
Others (X-ray, CT, angiography nuclear etc) OK, but not for radio-sensitive patients.
2
Q
What is the difference between T1 and T2 MRI?
A
T1 - fluids are dark. Vertical relaxation time.
T2 - fluids are bright. Horizontal relaxation time.
