Refining diagnostic criteria for paediatric bronchiectasis using low-dose CT scan.
Johnny Wu, Jennifer Bracken, Adrienne Lam, Kate L Francis, Fiona Ramanauskas, Anne B Chang, Phil Robinson, Paul McCallum, Danielle F Wurzel
Respir Med | Elsevier BV | Published : 2021
BACKGROUND: There is a current lack of consensus amongst paediatric radiologists and respiratory paediatricians as to the correct CT definition of bronchiectasis in children. Using contemporary low-dose CT, our objectives were to determine the upper limit of normal for broncho-arterial ratio (BAR) in children and to evaluate the effect of age and general anaesthesia. METHODS: Measurements of 330 broncho-arterial ratios from 51 children (0-19 years) undergoing low-dose CT chest for non-respiratory indications were performed by 3 blinded observers (two radiologists, one respiratory physician) using four different methods. Inter-observer reliability, mean BAR and reference ranges (mean±2SD) wer..View full abstract