FIG 1. The CT perfusion maps of a patient with an acute onset of a right-sided weakness (patient 2 in the Table). Noncontrast CT scan was negative for acute infarct signs. The infarcted area is covered only on the most superior location (sections 3 and 4) of the four sections from the toggling-table technique (arrows) and would have been missed if a single section location (eg, at the level of the third ventricle) would have been chosen