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Table 2 Strain according to segment thickness and tissue characteristics

From: Effect of cellular and extracellular pathology assessed by T1 mapping on regional contractile function in hypertrophic cardiomyopathy

 

Segment thickness

LGE

Native T1

ECV

 

<15 mm

>15 mm

P value

-ve

+ve

P value

<1239.4 ms

>1239.4 ms

P value

<29.5%

>29.5%

P value

Ecc-FT (%)

−20.3 ± 8.3

−8.5 ± 8.6

<0.001

−20.1 ± 8.7

−10.6 ± 8.5

<0.001

−21.2 ± 8.1

−15.8 ± 9.7

<0.001

−20.0 ± 8.2

−17.0 ± 10.4

<0.001

Segments analysed

684

99

 

676

107

 

437

346

 

467

316

 

Err-FT (%)

45.0 ± 27.2

15.2 ± 12.8

<0.001

44.8 ± 27.5

18.7 ± 15.5

<0.001

47.9 ± 27.4

32.7 ± 25.6

<0.001

43.3 ± 26.0

38.2 ± 29.7

<0.001

Segments analysed

689

99

 

681

107

 

441

347

 

468

320

 

Ecc-SPAMM (%)

−20.5 ± 8.1

−11.1 ± 4.8

<0.001

−20.6 ± 8.0

−11.2 ± 4.7

<0.001

−21.6 ± 7.5

−16.9 ± 8.5

<0.001

−20.8 ± 7.8

−17.5 ± 8.7

<0.001

Segments analysed

494

48

 

488

54

 

320

222

 

349

193

 
  1. Strain measured by Ecc-FT, Err-FT and Ecc-SPAMM according to the presence of overt hypertrophy (>15 mm), late gadolinium enhancement (LGE), elevated native T1 (defined as 2SD above mean measured from healthy controls) and exracellular volume fraction (ECV, also defined as 2SD above mean measured from healthy controls)