Fig 1.

Serial changes in 3 levels in standardized TTP maps of an 18-year-old female patient with MMD. Preoperatively (A) and 1 (B) and 3 (C) months after left temporal EDAS and frontal EPS and a 6-month map after a right-sided operation (D). Preoperative maps show large areas of prolonged TTP in the anterior cerebral artery and MCA territories bilaterally (A). Areas of normalized TTP near the craniotomy site (arrows: temporal EDAS; arrowheads: frontal EPS) are shown in the 1-month postoperative map (B) and are enlarged in the 3-month map (C). The contralateral hemisphere shows simultaneous improvement. After a subsequent right-sided operation, the right cerebrum shows increased areas of TTP normalization. The final maps show only small areas of TTP prolongation at the bilateral medial cerebrum (D).