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European Radiology Experimental

Table 5 Overview of mean differences between invasive and non-invasive blood flow measurements

From: Pulmonary CT perfusion robustly measures cardiac output in the context of multilevel pulmonary occlusion: a porcine study

Group

Aortic

Pulmonary

Mean difference

1.96 SD

LoA

Mean difference

1.96 SD

LoA

Cohort

0.00

1.86

[-1.86, 1.86]

0.00

2.24

[-2.24, 2.24]

No block

0.05

1.70

[-1.65, 1.75]

-0.15

1.42

[-1.57, 1.27]

Catheter block

0.39

2.07

[-1.69, 2.46]

0.49

3.01

[-2.52, 3.50]

Microsphere block

-0.39

1.35

[-1.74, 0.96]

-0.38

1.18

[-1.56, 0.80]

  1. Bland–Altman analysis results for the cohort, the no-block and catheter- and microsphere-induced block experimental stages
  2. LoA Limits of agreement, SD Standard deviation
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