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Table 3 CMR findings according to left ventricular ejection fraction

From: The relationship between myocardial microstructure and strain in chronic infarction using cardiovascular magnetic resonance diffusion tensor imaging and feature tracking

Parameter

pEF (n = 8)

mEF (n = 14)

rEF (n = 10)

ANOVA

P Value

LGE (SEG)

49 ± 17

66 ± 20

81 ± 16

0.004

Infarct Size

13 ± 8

16 ± 10

28 ± 12

0.011

cDTI

    

 MD(ROI) (× 10−3mm2/s)

1.6 ± 0.1

1.7 ± 0.1

1.9 ± 0.1

 < 0.001

 FA(ROI)

0.3 ± 0.2

0.3 ± 0.3

0.2 ± 0.3

0.002

 Absolute E2A(SEG) (Degrees)

51 ± 5

43 ± 5

35 ± 7

 < 0.001

Helix angles

    

 RHM(SEG) (%)

17.0 ± 2.6

12.4 ± 3.0

7.6 ± 3.3

 < 0.001

 CM(SEG) (%)

73.5 ± 7.2

71.1 ± 10.6

69.4 ± 9.4

0.664

 LHM(SEG) (%)

8.5 ± 5.2

17.8 ± 10.2

23.6 ± 8.8

0.004

Strain

    

 Global radial strain (%)

26.3 ± 6.6

17.8 ± 3.4

14.1 ± 3.5

 < 0.001

 Global longitudinal strain (%)

− 12.9 ± 2.5

− 10.5 ± 2.4

− 7.4 ± 2.6

 < 0.001

 Global circumferential strain (%)

− 15.7 ± 3.3

− 12.4 ± 1.4

− 11.1 ± 2.9

0.002

 Radial strain in infarct segments (%)

16.5 ± 9.6

13.7 ± 6.8

8.5 ± 3.7

0.051

 Longitudinal strain in infarct segments (%)

− 13.7 ± 4.1

− 10.1 ± 3.5

− 6.9 ± 2.1

 < 0.001

 Circumferential strain in infarct segments (%)

− 14.0 ± 7.4

− 8.4 ± 5.4

− 6.8 ± 6.1

0.052

  1. cDTI cardiac diffusion tensor imaging, E2A secondary eigenvector, FA fractional anisotropy, LHM left handed orientation, MD mean diffusivity, RHM right handed orientation
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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