Highlights • There is a current lack of consensus regarding the radiological criteria for defining bronchiectasis in children using low-dose CT • A broncho-arterial ratio of >0.9 in children is likely abnormal and, in the appropriate clinical setting, indicates a diagnosis of bronchiectasis • Computer software enabling automated measurement of broncho-arterial ratio will facilitate establishment of age-adjusted cut-offs which will further improve diagnostic precision in paediatric...
