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Table 4 Contingency table comparing MIP with MIP + source data for all lower limb assessable segments demonstrating a small but significant difference in proportions

From: Impact of source data on the interpretation of contrast-enhanced magnetic resonance angiography of the lower limbs

MIP

MIP and source data

Total

Assessable

NSVC

Assessable

1133

0

1133

NSVC

14

37

51

Total

1147

37

1184

Difference of proportions (95% confidence intervals)

-0.012 (-0.012 to -0.006)

Two-tailed p (McNemar)

0.0001