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Table 2 Comparison of the correlation coefficients of the individual algorithms

From: Quantitative assessment of magnetic resonance derived myocardial perfusion measurements using advanced techniques: microsphere validation in an explanted pig heart system

 

1.5 Tesla

3 Tesla

Algorithm

Fermi

ARMA

Exponential

B-spline

Fermi

ARMA

Exponential

B-spline

Fermi

p = 1

p = 0.06

p = 0.64

p = 0.001

p = 1

p < 0.001

p < 0.001

p = 0.001

ARMA

p = 0.06

p = 1

p = 0.16

p = 0.04

p < 0.001

p = 1

p = 0.36

p = 0.6

Exponential

p = 0.64

0.16

p = 1

p = 0.001

p < 0.001

p = 0.36

p = 1

p = 0.15

B-spline

p = 0.001

0.04

p = 0.001

p = 1

p = 0.001

p = 0.6

p = 0.15

p = 1

  1. The table shows the results of the comparison of the correlation coefficients of the individual algorithms. Fermi function deconvolution had the strongest r-value at both field strengths. In comparison with the other methods it performed significantly better at 3 Tesla. At 1.5 Tesla it performed significantly better than B-spline deconvolution but not than ARMA and exponential deconvolution. The comparison of the correlation strength of the individual algorithms with the microsphere reference-standard was based on Fisher z transformation. P values of less than 0.008 remained significant after Bonferroni correction for multiple comparisons.