Brain imaging computed tomography

All patients should have a brain computed tomography scan or magnetic resonance imaging scan to differentiate an ischemic stroke from a hemorrhagic stroke, as the treatment... 

Magnetic resonance imaging (MRI) or computed tomography (CT) is used to measure changes in brain size and volume and rule out stroke, brain tumor, or a cerebral edema. 

Brain imaging magnetic resonance imaging and functional scan alternative computed tomography scan, positron emission tomography scan... 

Neuroimaging Radiologic studies of the brain, usually referring to computed tomography (CT) or magnetic resonance imaging (MRI). 

Innis, R., Baldwin, R.M., Sybirska, E., Zea, Y., Laruelle, M., Al-Tikriti, M., Chamey, D., Zoghbi, S., Wisniewski, G., Hoffer, P., Wang, S., Millius, R., and Neumeyer, J., Single photon emission computed tomography imaging of monoamine uptake sites in primate brain with [123I]CIT, Eur. J Pharmacol., 200, 369, 1991. 

Shaya, E.K., Scheffel, U., Dannals, R.F., Ricaurte, G.A., Carroll, F.I., Wagner, H.N., Jr., Kuhar, M.J., and Wong, D.F., In vivo imaging of dopamine reuptake sites in the primate brain using single photon emission computed tomography (SPECT) and iodine-123 labeled RTI-55, Synapse, 10, 169, 1992. 

Although magnetic resonance imaging is very useful (especially imaging of the temporal lobes), computed tomography typically is not helpful except in the initial evaluation for a brain tumor or cerebral bleeding. 

Lumbar puncture is considered mandatory in patients with suspected bacterial meningitis but the procedure can be hazardous with a risk of brain herniation in patients with raised intracranial pressure, and imaging with computed tomography or MRI is recommended for selected patients to detect brain shift. Patients who are in an immunocompromised state, have new-onset seizures, moderate-to-severe impairment of consciousness or signs that are suspicious of space-occupying lesions (e.g. papilloedema - oedema of the optic disk) should undergo neuroimaging prior to lumbar puncture. 

Wintermark M, Bogousslavsky J (2003). Imaging of acute ischemic brain injury the return of computed tomography. Current Opinions in Neurology 16 59-63 Wintermark M, Meuli R, Browaeys P et al (2007). Comparison of CT perfusion and angiography... 

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