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Table 2 Right ventricular myocardial perfusion parameters

From: Ultrasound study of right ventricular myocardial perfusion and functional changes in hypertrophic cardiomyopathy

Variables

HCM (n = 29)

Control (n = 21)

t/Z

p

β/s-1

Whole RV

3.71 ± 1.39

6.25 ± 2.01

-5.275

 < 0.001

RV free wall

3.21 ± 1.46

4.81 ± 1.76

-3.503

0.001

RV free wall

Base

3.28 ± 2.26

4.65 ± 3.19

-1.783

0.081

Mid

3.14 ± 2.21

4.76 ± 3.10

-2.042

0.049

Apical

3.21 ± 1.95

5.02 ± 3.18

-2.307

0.028

Interventricular septum

Base

3.63 ± 2.54

7.50 ± 4.49

-3.561

0.001

Mid

4.38 ± 2.43

7.43 ± 4.95

-2.599

0.015

Apical

4.63 ± 3.27

8.12 ± 4.66

-3.117

0.003

A/dB

Whole RV

6.89 ± 1.90

8.52 ± 2.14

-2.838

0.007

RV free wall

6.49 ± 2.02

7.49 ± 3.36

-1.212

0.235

RV free wall

Base

6.26 ± 2.62

7.06 ± 3.73

-0.890

0.378

Mid

6.42 ± 2.92

6.63 ± 3.79

-0.217

0.829

Apical

6.77 ± 3.73

8.77 ± 5.65

-1.409

0.168

Interventricular septum

Base

6.79 ± 3.97

8.85 ± 2.67

-2.065

0.044

Mid

7.77 ± 3.72

9.78 ± 3.01

-2.039

0.047

Apical

7.32 ± 3.07

10.05 ± 3.23

-3.037

0.004

MBF/(dB·s-1)

whole RV

29.13 ± 15.35

53.72 ± 23.87

-3.921

 < 0.001*

RV free wall

22.44 ± 13.41

32.24 ± 17.12

-1.975

0.048*

RV free wall

Base

19.97 ± 17.67

27.46 ± 17.12

-1.897

0.058*

Mid

21.55 ± 17.18

28.74 ± 22.84

-0.934

0.350*

Apical

25.81 ± 25.25

40.53 ± 36.28

-1.700

0.089*

Interventricular septum

Base

29.06 ± 29.63

73.23 ± 60.47

-3.253

0.001*

Mid

39.17 ± 34.94

73.12 ± 59.60

-2.565

0.010*

Apical

39.19 ± 35.04

79.27 ± 42.11

-3.273

0.001*

  1. Abbreviations: RV right ventricle, A/dB peak intensity, β/s-1 average slope of the curve, MBF/(dB·s-1) myocardial blood flow
  2. *Mann–Whitney test