Table 1. Comparison of AUC from the probabilistic prediction algorithm (Shen et al, 2005b; Shen and Duong, 2008) and the corresponding AUC from ANN.

	ADC+CBF	ADC+CBF+spatial	ADC+CBF+3D+spatial
Permanent MCAO
Probabilistic	93±3	92±4	NA
ANN	93±1	95±4	94±2
60-minute MCAO
Probabilistic	90±4	92±3	NA
ANN	89±2	94±1	94±1
30-minute MCAO
Probabilistic	87±3	92±3	NA
ANN	86±3	89±3	88±3

ADC, apparent diffusion coefficient; ANN, artificial neural network; AUC, area under the curve; CBF, cerebral blood flow; 3D, three-dimensional; Spatial, spatial information; MCAO, middle cerebral artery occlusion; NA, not analyzed.