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Table 3 Stroke volume and cardiac output, mean difference between the three phase-contrast techniques

From: Phase-contrast MRI volume flow – a comparison of breath held and navigator based acquisitions

Comparison of methods

Stroke volume (ml)

Cardiac output (ml/min)

Mean difference, +/−STD

Mean difference, +/− STD

TF5/TF3

0.2

163

+/− 4.6

+/− 395

p = 0.76

p = 0.013

Nav/TF3

2.0

92

+/− 6.1

+/− 394

p = 0.046

p = 0.15

Nav/TF5

1.8

−71

+/− 6.8

+/− 462

p = 0.10

p = 0.33

  1. The mean difference between the phase-contrast based methods. The difference between TF5 (k-space segmentation factor 5) and TF3 (k-space segmentation factor 3) was non-significant (p = 0.76) for stroke volume but significant for cardiac output (p = 0.013). The difference between navigator vs TF3 as well as navigator vs TF5 was non-significant for cardiac output but barely significant for navigator vs TF3 for stroke volume
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BMC Medical Imaging

ISSN: 1471-2342

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