Neurological Radiology Flashcards
What is meant by contracoup?
When contusions on the brain and directly opposite the point of trauma
When would you not do an MRI?
If patient has a pacemaker or metallic implants
If patient is claustrophobic
What colour is CSF in T1 weighted MRI compared to T2 weighted MRI?
T1- CSF is black
T2- CSF is white
What are the advantages of US?
No radiation
Less expensive
Can be moved
What are the diadvantages of US?
Image quality can be poor
Interpretation based on operator skill
What are the advantages of plain radiographs?
Fast
Almost universal availability
What are the disadvantages of plain radiographs?
Lacks soft tissue detail
What are the advantages of CT?
Rapid
Metal and pacemaker tolerant
Good for demonstrating acute haemorrhage
What are the disadvantages of CT?
Radiation
More expensive and cumbersome equipment
What are the advantages of Radionuclide radiology?
Gives physiological information e.g. glucose metabolism, perfusion, dopamine reuptake receptors
What are the disadvantages of Radionuclide radiology?
Unclear anatomical information
Radiotracers can be expensive
What are the advantages of MRI?
No radiation
Soft tissue differentiation
Physiological info e.g. blood flow, diffusion restriction, metabolite concentrations
What are the disadvantages of MRI?
Poor tolerance of metalwork
Magnetic sensitive
Does not tolerate movement
Slow
Expensive equipment
