Research Article

Spatiotemporal Dynamic Simulation of Acute Perfusion/Diffusion Ischemic Stroke Lesions Evolution: A Pilot Study Derived from Longitudinal MR Patient Data

Table 1

Evaluation of the estimated DWI/MTT lesion evolution scenarios. The mean dice index value (a measure quantifying the volumetric overlap between two volumes and ranges from 0 to 1 for the best match) and its standard deviation are computed over the 8 patients between the estimated and the manually delineated DWI/MTT lesions at and . They are also computed for the additionally spatial deformation —mapping DWI lesion into MTT lesion at —to show how good is the mapping of DWI lesion into MTT lesion at .

DWI DWI DWI to MTT MTT MTT

Mean (dice) 0.90 0.90 0.86 0.76 0.80
SD (dice) 0.02 0.02 0.06 0.09 0.08