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Table 2 Comparison of Transthoracic Doppler-echocardiography (TTE) and Cardiovascular Magnetic Resonance (CMR) data

From: Comparison between cardiovascular magnetic resonance and transthoracic doppler echocardiography for the estimation of effective orifice area in aortic stenosis

 

TTE

CMR

 
 

Mean ± SD

Mean ± SD

p-value

Heart rate (bpm)

65 ± 12

66 ± 11

0.40

LVOT area (cm2)

3.84 ± 0.8

4.78 ± 1.05

< 0.001

AP/RL diameter ratio

 

0.87 ± 0.08

-

LVOT VTI (cm)

21 ± 4

15 ± 4

< 0.001

SV (mL)

80 ± 13

80 ± 18

0.68

Ao VTI (cm)

61 ± 22

57 ± 20

0.02

EOA (cm2)

1.53 ± 0.67

1.59 ± 0.73

0.17

  1. LVOT: Left ventricular outflow tract; AP: Anterior-Posterior diameter; RL: Right-Left diameter; LVOT VTI: flow velocity time-integral in LVOT; SV: Stroke volume; Ao VTI: peak aortic velocity-time integral; EOA: valve effective orifice area.
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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