Table 3 Agreement between manual and automated strain analyses; GLS, GCS 3 slices, GCS all slices, GRS 3 slices and GRS all slices.

From: Artificial intelligence fully automated myocardial strain quantification for risk stratification following acute myocardial infarction

Parameter

Bias

95% LOA

ICC (95% CI)

Correlation (ρ) (95% CI)

CoV (%)

GLS

0.69

− 7.11 to 8.49

0.81 (0.78–0.83)

0.72 (0.69–0.75)

24.10

GCS 3 slices

− 5.1

− 15.36 to 5.18

0.68 (0.07–0.85)

0.78 (0.75–0.80)

24.87

GCS all slices

− 6.32

− 17.54 to 4.92

0.60 (− 0.08–0.81)

0.77 (0.75–0.79)

28.01

GRS 3 slices

− 51

− 92.97 to − 9.00

0.09 (− 0.08–0.30)

0.48 (0.44–0.53)

46.20

GRS all slices

− 50.26

− 86.88 to − 13.61

0.09 (− 0.08–0.30)

0.49 (0.44–0.54)

40.62

  1. Automated GCS and GRS all slices were compared to the manual method of obtaining the average of 3 slices. Correlation is represented by Spearman’s ρ.
  2. CoV indicates coefficient of variation; GCS, global circumferential strain; GLS, global longitudinal strain; GRS, global radial strain; ICC, intraclass correlation coefficient; LOA limits of agreement.
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