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Table 4 Association between PWV from Bramwell-Hill model (with brachial cuff and intra-arterial pressure) and pressure-assessed PWV.

From: Bramwell-Hill modeling for local aortic pulse wave velocity estimation: a validation study with velocity-encoded cardiovascular magnetic resonance and invasive pressure assessment

 

PPcuff

p-value comparison

↔

PPcath

Pearson r

0.82 (p < 0.001)

0.27

0.80 (p < 0.001)

COV

14%

 

17%

Mean unsigned error

16% ± 9%

 

16% ± 9%

Mean difference (m/s)

-1.1 ± 0.9

0.03

-0.6 ± 1.1

p-value t-test

< 0.001

 

0.04

95%-CI (m/s)

-1.5 - -0.7

 

-1.1 - -0.1

  1. PPcuff: pulse pressure from brachial cuff measurement; PPcath: pulse pressure from invasive pressure measurement during catheterization; COV: coefficient of variation; 95%-CI: 95%-confidence interval.
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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