PT - JOURNAL ARTICLE AU - Marshall, Helen AU - Horsley, Alex AU - Taylor, Chris J AU - Smith, Laurie AU - Hughes, David AU - Horn, Felix C AU - Swift, Andrew J AU - Parra-Robles, Juan AU - Hughes, Paul J AU - Norquay, Graham AU - Stewart, Neil J AU - Collier, Guilhem J AU - Teare, Dawn AU - Cunningham, Steve AU - Aldag, Ina AU - Wild, Jim M TI - Detection of early subclinical lung disease in children with cystic fibrosis by lung ventilation imaging with hyperpolarised gas MRI AID - 10.1136/thoraxjnl-2016-208948 DP - 2017 Aug 01 TA - Thorax PG - 760--762 VI - 72 IP - 8 4099 - http://thorax.bmj.com/content/72/8/760.short 4100 - http://thorax.bmj.com/content/72/8/760.full SO - Thorax2017 Aug 01; 72 AB - Hyperpolarised 3He ventilation-MRI, anatomical lung MRI, lung clearance index (LCI), low-dose CT and spirometry were performed on 19 children (6–16 years) with clinically stable mild cystic fibrosis (CF) (FEV1>−1.96), and 10 controls. All controls had normal spirometry, MRI and LCI. Ventilation-MRI was the most sensitive method of detecting abnormalities, present in 89% of patients with CF, compared with CT abnormalities in 68%, LCI 47% and conventional MRI 22%. Ventilation defects were present in the absence of CT abnormalities and in patients with normal physiology, including LCI. Ventilation-MRI is thus feasible in young children, highly sensitive and provides additional information about lung structure–function relationships.