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Table 3 CMR derived diastolic function parameters

From: Left ventricular torsion shear angle volume analysis in patients with hypertension: a global approach for LV diastolic function

 

Control

HTN

(n = 40)

(n = 60)

Normalized peak early filling rate, 1/s

3.03 ± 0.60

2.54 ± 0.72*

Normalized peak atrial filling rate, 1/s

1.66 ± 0.65

2.32 ± 0.83*

E/A Ratio

2.19 ± 1.07

1.33 ± 1.13*

Normalized peak E Dia MA velocity, %/sec

86 ± 30

66 ± 21*

Normalized peak A Dia MA velocity, %/sec

43 ± 21

58 ± 23*

Peak E Dia Circ. strain rate, %/sec†

101 ± 28

79 ± 27*

Peak E Dia long. strain rate, %/sec†

104 ± 32

79 ± 30*

Peak E Dia untwist rate, °/sec†

78 ± 21

103 ± 39*

Time to peak untwist rate, msec

384 ± 42

398 ± 51

  1. Values are mean ± SD; HTN: hypertension; E Dia: early diastole; A Dia: atrial diastole; MA: mitral annulus; Circ.: circumferential; Long.: longitudinal; * = significantly different from Control; †, the statistical significance retains after adjusting for age effect. Peak early and atrial filling rates were normalized to end-diastolic volume. Peak early and atrial diastolic MA velocity were normalized to left ventricular length multiplied by 100.