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. Author manuscript; available in PMC: 2010 Mar 17.
Published in final edited form as: Med Phys. 2006 Jun;33(6):1695–1706. doi: 10.1118/1.2198187

TABLE I.

R-square values for linear fitting.

Standard deviation of Gaussian noise s (pixels)
for s≠0, calculated from ten simulations
s=0.00 s=0.01 s=0.20 s=0.40 s=1.00
R-square value
in calculation of
RFD and υ0 		0.999 999 1 0.999 998 1±5 × 10−7 0.999 984±7 × 10−6 0.999 96±3 × 10−5 0.9997±1 × 10−4
R-square value
in calculation of
η and u0 		0.999 999 8 0.999 991±5 × 10−6 0.997±0.002 0.99±0.01 0.92±0.05