Neuroradiology 2 Flashcards
1
Q
Why is CT indicated in stroke initially?
A
To determine whether stroke is embolic or haemorrhagic (i.e thrombolysis contraindicated)
2
Q
What does a T1 hyperintense MRI show?
A
Fat Methemolobin Mineral deposition Melanin "Mush" Contrast material
3
Q
What does a T1 hypointense MRI show?
A
Water, air, bone
High flow e.g arterial “flow voids”
4
Q
What does a T2 hyperintense MRI show?
A
More water and/or less tissue (T2=H2O)
5
Q
What does a T2 Hypointense MRI show?
A
Some blood products
Mineral deposition
Paucity of water or mobile protons
High flow
