Table 1. Agreement among the four scans for each parameter measured using each of the six thresholding strategies.

Quantitative parameter	Thresholding strategy	ICC (95% CI)
N. FD	G. Otsu	0.909 (0.820-0.960)
	G. Mean	0.852 (0.730-0.983)
	G. Default	0.904 (0.818-0.958)
	L. Mean	0.925 (0.856-0.968)
	L. Phansalkar	0.964 (0.928-0.985)
	L. Niblack	0.955 (0.910-0.981)
FD area	G. Otsu	0.880 (0.777-0.947)
	G. Mean	0.115 (–0.064-0.395)
	G. Default	0.838 (0.707-0.927)
	L. Mean	0.880 (0.777-0.947)
	L. Phansalkar	0.937 (0.877-0-973)
	L. Niblack	0.881 (0.777-0.948)
FD average size	G. Otsu	0.771 (0.605-0.894)
	G. Mean	0.627 (0.412-0.813)
	G. Default	0.684 (0.484-0.847)
	L. Mean	0.825 (0.687-0.921)
	L. Phansalkar	0.850 (0.727-0.933)
	L. Niblack	0.843 (0.716-0.930)
FD density	G. Otsu	0.873 (0.763-0.944)
	G. Mean	0.786 (0.618-0.902)
	G. Default	0.833 (0.699-0.925)
	L. Mean	0.879 (0.774-0.946)
	L. Phansalkar	0.917 (0.840-0.964)
	L. Niblack	0.974 (0.946-0.989)

Values presented correspond to ICC. ICC, intraclass correlation coefficient; G., global; L., local; N., number; CI, confidence interval; FD, flow deficits.