Fig 1.

A, Baseline CT scan at 100 minutes from stroke onset showing a left middle cerebral artery infarct with an ASPECT score of 8. Points are taken off for hypoattenuation of the head of caudate and the lentiform nuclei. Based upon our data, this patient would be an ideal candidate for IV-IA therapy.

B, Baseline CT scan at 175 minutes from stroke onset showing a well-evolved right middle cerebral artery infarct with an ASPECT score of 0. Based upon our data, this patient could be harmed by IV-IA therapy.