24.All are true regarding contrast in infarction except
a. Gyral parenchymal enhancement typically
begins toward the end of the first week
b. Gyral parenchymal enhancement persists for
approximately 6 to 8 months
c. early cortical enhancement suggested a more
favorable clinical outcome
d. No Contrast enhancement during chronic infarction
e. early arterial enhancement without
significant early parenchymal enhancement
seen in most patients with a completed stroke
24.----b
Contrast enhancement on conventional MR images
play an important role in the diagnosis of subacute infarction . Gyral
parenchymal enhancement in the subacute infarction typically begins toward the
end of the first week, when mass effect has resolved, and persists for
approximately 6 to 8 weeks. This discordance between enhancement and mass
effect is an extremely useful radiologic sign because enhancing
lesions significant
mass effect are unlikely to represent cerebral infarction . Subacute infarction represents
one of the lesions that demonstrate significant enhancement and no mass effect
.(Chapter 15,,Atlas)
No comments:
Post a Comment