Is the optimal Tmax threshold identifying perfusion deficit volumes variable across MR perfusion software packages? A pilot study.
Alexandre Bani SadrMathilde TrintignacLaura MechtouffMarc HermierMatteo CappucciRoxana AmeliCharles de BourguignonLaurent DerexTae-Hee ChoNorbert NighoghossianOmer Faruk EkerYves BerthezenePublished in: Magma (New York, N.Y.) (2023)
The optimal Tmax threshold for defining the ischemic penumbra appeared to be most accurate at ≥ 6 s for package A and ≥ 10 s for package B. This implies that the widely recommended Tmax threshold ≥ 6 s may not be optimal for all available MRP software package. Future validation studies are required to define the optimal Tmax threshold to use for each package.