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Table 2 Associations between CMR- 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

 

regional

local

 

PWVt.p. vs. PWVpressure

p-value comparison↔

PWVi.p. vs. PWVpressure

PWVi.p. vs. PWVpressure

Pearson r

0.26 (p = 0.31)

0.02

0.69 (p = 0.002)

0.91 (p < 0.001)

COV

27%

 

24%

19%

Mean unsigned error

26% ± 13%

 

18% ± 12%

15% ± 8%

Mean difference (m/s)

-1.3 ± 1.7

 

-0.2 ± 1.6

0.2 ± 1.3

p-value t-test

0.006

 

0.61

0.56

95%-CI (m/s)

-2.1 - 0.5

 

-1.0 - 0.6

-0.4 - 0.8

  1. PWVt.p.: Pulse wave velocity from through-plane velocity-encoded CMR; PWVi.p.: PWV from in-plane velocity-encoded CMR; PWVpressure: PWV from invasive pressure measurements; 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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