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Baseline pulsatility in all pulmonary arteries studied, grouped according to clinical outcome. The median value of pulmonary pulsatility was 14.0%, range 7.7–26.7% (discontinuous line). Note that among the patients who survived, 13 of the 17 pulmonary arteries studied had a pulsatility above the median value. On the other hand, among the nine who died at follow up, only three of the 14 pulmonary arteries studied had a pulsatility of ≥ 14%.
