Click on image to view larger version.
Fig 3. Patient 2. A, Quantitative ASL CBF map shows regional hyperperfusion (arrows) in the medial occipital lobes on a background of global hyperperfusion in this patient who underwent imaging examination during a migraine episode. Mean gray matter CBF measured 162.2 and 138.7 mL/100 g tissue/min, respectively, in the medial left and right occipital cortex. B, Quantitative CBF map obtained 6 months after the migraine episode shows resolution of the regional hyperperfusion in the medial occipital lobes (arrowheads). The underlying global hyperperfusion also resolved. Mean gray matter CBF decreased from 162.2 to 107.5 mL/100 g tissue/min in the medial left occipital cortex and from 138.7 to 112.9 mL/100 g tissue/min in the medial right occipital cortex.
