Repeatability visits with hyperpolarized 129Xe MRI of ventilation and gas exchange measures were acquired at baseline and 3-6 weeks after baseline in patients with persistent dyspnea, fatigue, and neurocognitive symptoms (“Long” COVID). Findings did not support the same repeatability of measures found in a previous study of IPF, suggesting instability of pulmonary pathophysiology is a characteristic of Long COVID.
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Staab et al. (2024) studied this question.
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