Modified Chrispin-Norman chest radiography score for cystic fibrosis: observer agreement and correlation with lung function
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : P. A. de Jong & J. A. Achterberg & O. A. M. Kessels & B. van Ginneken & L. Hogeweg & F. J. Beek & S. W. J. Terheggen-Lagro
- چاپ و سال / کشور: 2010
Description
Objective To test observer agreement and two strategies for possible improvement (consensus meeting and reference images) for the modified Chrispin-Norman score for children with cystic fibrosis (CF). Methods Before and after a consensus meeting and after developing reference images three observers scored sets of 25 chest radiographs from children with CF. Observer agreement was tested for line, ring, mottled and large soft shadows, for overinflation and for the composite modified Chrispin- Norman score. Correlation with lung function was assessed. Results Before the consensus meeting agreement between observers 1 and 2 was moderate-good, but with observer 3 agreement was poor-fair. Scores correlated significantly with spirometry for observers 1 and 2 (−0.72<R<−0.42, P<0.05), but not for observer 3. Agreement with observer 3 improved after the consensus meeting. Reference images improved agreement for overinflation and mottled and large shadows and correlation with lung function, but agreement for the modified Chrispin-Norman score did not improve further. Conclusion Consensus meetings and reference images improve among-observer agreement for the modified Chrispin- Norman score, but good agreement was not achieved among all observers for the modified Chrispin-Norman score and for bronchial line and ring shadows.
Eur Radiol (2011) 21:722–729 DOI 10.1007/s00330-010-1972-7 Received: 13 May 2010 / Revised: 29 July 2010 / Accepted: 2 September 2010 / Published online: 6 October 2010
