Table 2 Intra-observer and Inter-observer coefficient of variation of CMR Feature Tracking.

From: Myocardial Deformation in Cardiac Amyloid Light-chain Amyloidosis: Assessed with 3T Cardiovascular Magnetic Resonance Feature Tracking

 

Global

Basal

Mid-ventricular

Apical

Intra-

Inter-

Intra-

Inter-

Intra-

Inter-

Intra-

Inter-

Longitudinal

PS (%)

−2.75

−8.48

−7.57

−9.39

−9.05

−18.24

−11.48

−17.90

PSSR (1/s)

−5.84

−12.41

−8.69

−12.11

−10.54

−16.61

−10.94

−22.91

PDSR (1/s)

5.04

11.20

11.09

15.93

11.31

15.24

12.24

16.23

Circumferential

PS (%)

−2.32

−8.28

−4.42

−9.29

−5.84

−13.82

−4.38

−17.22

PSSR (1/s)

−3.95

−11.75

−7.54

−10.62

−10.66

−18.13

−5.16

−17.51

PDSR (1/s)

7.25

12.86

5.32

14.91

6.36

14.70

7.90

20.91

Radial

PS (%)

7.75

11.77

6.91

12.45

9.75

11.70

8.08

14.75

PSSR (1/s)

8.45

17.04

13.25

19.54

14.36

22.07

11.57

20.48

PDSR (1/s)

−8.40

−15.48

−15.25

−15.13

−9.89

−14.18

−11.00

−13.41

  1. Note: The coefficient of variation is given in %. PS = Peak Strain; PSSR = Peak Systolic Strain Rate; PDR = Peak Diastolic Strain Rate.