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Table 2 Results from test set n = 183 for automatic Segment MaR CE-SSFP segmentation and threshold methods against manual delineation

From: Automatic segmentation of myocardium at risk from contrast enhanced SSFP CMR: validation against expert readers and SPECT

 

MaR bias [% of LVM]

Regression

DSC

R-value

Segment MaR CE-SSFP

1 ± 6

0.83

0.85 ± 0.08

2SD threshold

-13 ± 15

0.47

0.54 ± 0.27

FWHM threshold

-22 ± 11

0.42

0.42 ± 0.21

Otsu threshold

10 ± 12

0.05

0.65 ± 0.12

  1. MaR Myocardium at risk, LVM Left ventricular mass, DSC Dice similarity coefficient, Segment MaR CE-SSFP automatic segmentation proposed in this study, 2SD two standard deviations from remote, FWHM full width half maximum intensity