How specific is the hyperdense MCA sign?
Upwards of 90% with a poor prognosis for the patient
How early can dense MCA sign be seen?
Within 90 minutes of event making it the earliest visible sign of infarct
What sign is associated with dense mca sign?
MCA dot sign (distal M2 branch) in the sylvian fissure indicating thromboembolic event in the distal MCA region
Large volume brain edema bilaterally involving the majority of the supratentorial brain with left to right midline shift of approximately 4.4 mm. New bilateral dense MCA sign.