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Table 2 Global strain and indexed global strain values measured at different inotropic states

From: Cardiovascular magnetic resonance-derived left ventricular mechanics—strain, cardiac power and end-systolic elastance under various inotropic states in swine

 

Baseline

Dobutamine

Verapamil

(A)

   

GLS (%)

− 23 ± 4

− 45 ± 9*

− 16 ± 3*

GCS (%)

− 31 ± 8

− 53 ± 10*

− 17 ± 5*

GRS (%)

72 ± 19

88 ± 36

30 ± 12*

(B)

   

GLSi (%)

− 23 ± 4

− 45 ± 10*

− 16 ± 4*

GCSi (%)

− 30 ± 8

− 52 ± 8*

− 16 ± 5*

GRSi (%)

71 ± 19

84 ± 23

30 ± 13*

(C)

   

GLSw (%)

− 23 ± 5

− 44 ± 10*

− 16 ± 3*

GCSw (%)

− 31 ± 9

− 52 ± 13*

− 17 ± 17*

GRSw (%)

71 ± 20

90 ± 54

35 ± 27*

  1. (A) Global strain: GLS global longitudinal strain, GCS global circumferential strain, GRS global radial strain; (B) Global strain indexed for mean aortic pressure (mAoP): GLSi global longitudinal strain indexed for mAoP, GCSi global circumferential strain indexed for mAOP, GRSi global radial strain indexed for mAoP; (C) Global strain indexed for meridional wall stress: GLSw global longitudinal strain indexed for wall stress, GCSw global circumferential strain indexed for wall stress, GRSw global radial strain indexed for wall stress. *p < 0.05 vs. baseline; §p < 0.05 vs. Dobutamine