Fig. 3.
A 56-year-old man showing typical 'cortical high density' lesions.
A. The non-contrast CT obtained immediately after intra-arterial thrombolysis shows patchy high density areas in the right frontal and parietal cortices.
B. The follow-up CT obtained 24 hours after the procedure shows disappearance of the high densities and the remaining subtle cortical low densities.
