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Table 4 Linear regression of transverse and longitudinal parameters, and RVEF in PH patients.

From: Right ventricular ejection fraction is better reflected by transverse rather than longitudinal wall motion in pulmonary hypertension

Ā 

level

R2

Transverse movements

fractional-SFD

apex-1

0.30*

Ā 

2

0.39*

Ā 

3

0.55*

Ā 

mid-4

0.70*

Ā 

5

0.66*

Ā 

6

0.51*

Ā 

base-7

0.32*

SFD

apex-1

0.30*

Ā 

2

0.35*

Ā 

3

0.48*

Ā 

mid-4

0.62*

Ā 

5

0.55*

Ā 

6

0.37*

Ā 

base-7

0.17*

Longitudinal movements

fractional-TAAD

-

0.27*

TAPSE

-

0.21*

RV area change

AC

-

0.25*

fractional-AC

-

0.76*

  1. Data are determined in PH patients only. Values are mean. RV area change (AC) and fractional AC are determined in 4-chamber view.
  2. * Significantly lower compared to control subjects (P < 0.001).