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Iodine-123 N-isopropyl-p-iodoamphetamine (123I-IMP) single photon emission computed tomography (SPECT) scan on admission demonstrating hypoperfusion over almost the whole brain including the bilateral basal ganglia (left). 123I-IMP SPECT scan after surgery demonstrating normal cerebral blood flow (CBF) except for the CBF defect at the venous infarction site (right).
