Table 4 T1/T2 mapping and feature tracking analysis for non-viable versus viable territories in the LAD, RCA, and LCX regions.

From: Machine learning-based interpretation of non-contrast feature tracking strain analysis and T1/T2 mapping for assessing myocardial viability

CMR Parameters

LAD

RCA

LCX

Non-viable

N=32

Viable

N=47

P value

Non-viable

N=26

Viable

N=53

P value

Non-viable

N=25

Viable

N=54

P value

Longitudinal strain

7.22±4.85

9.20±5.15

0.08

5.96±4.18

7.78±4.98

0.11

4.00±5.29

7.54±5.48

0.009*

Radial strain

6.85±5.18

14.38±10.23

*0.001

9.99±6.56

13.65±9.20

0.74

13.89±7.05

19.17±10.54

0.020*

Circumferential strain

4.85±2.96

8.95±5.80

*0.001

6.84±3.50

8.76±4.72

0.07

8.16±3.81

11.84±5.12

0.002*

T1 Mapping

1076.81±97.90

1022.38±77.52

*0.01

1120.34±75.51

1136.61±398.15

0.83

1046.50±78.75

1004.09±64.65

0.014*

T2 mapping

58.60±8.21

53.65±7.95

*0.009

57.81±7.91

52.01±5.91

0.001*

56.01±8.16

51.35±6.79

0.018*

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