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Table 1 Results for all five segmentation methods compared to reference delineation

From: Semi-automatic segmentation of myocardium at risk in T2-weighted cardiovascular magnetic resonance

 

MaR bias

 

Regression

  
 

[% of LVM]

p-value

R-value

p-value

DSC

Segment MaR

-1.9 ± 6.4

0.047

0.81

<0.001

0.85 ± 0.07

Second observer delineation

-2.3 ± 4.9

0.003

0.91

<0.001

0.90 ± 0.08

2SD threshold

-7.7 ± 11.4

<0.001

0.38

0.008

0.69 ± 0.14

FWHM threshold

-21.0 ± 9.9

<0.001

0.41

0.004

0.46 ± 0.14

Otsu threshold

5.3 ± 9.6

<0.001

0.47

<0.001

0.68 ± 0.10

  1. MaR-Myocardium at risk, DSC-Dice similarity coefficient, 2SD-two standard deviations from remote, FWHM-full width half maximum intensity