Children and teens with long COVID have significant lung abnormalities detected with an advanced form of magnetic resonance imaging (MRI), called free-breathing phase-resolved functional lung (PREFUL) MRI. The findings were published yesterday in Radiology.

Though chest scans are used to diagnose and monitor lung function of adults with long COVID, they are less commonly used on children with persistent symptoms after COVID-19, which is also called post-COVID condition (PCC). Lung perfusion, or how blood flows in and out of the lungs, can thus be hard to detect in pediatric patients.