Fig 1.
A and B: stenosis > 50%. C: stenosis > 75%. D: continuous pandiastolic flow, delayed systolic rise, spectral broadening, E and F: monophasic flow [18].
Fig 2.
Study flowchart.
Table 1.
Population characteristics.
Fig 3.
Posterior probability that the specificity would be higher than 80% in specific subgroups of the population.
From the upper left frame down, sex, CAD, race (self-reported) and hypertension.
Table 2.
ABI’s accuracy.