Imperial College London

ProfessorAtholWells

Faculty of MedicineNational Heart & Lung Institute

Professor of Respiratory Medicine
 
 
 
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Contact

 

a.wells

 
 
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Location

 

Emmanuel Kaye BuildingRoyal Brompton Campus

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Summary

 

Publications

Citation

BibTex format

@article{Walsh:2015:10.1136/thoraxjnl-2015-207252,
author = {Walsh, SLF and Calandriello, L and Sverzellati, N and Wells, AU and Hansell, DM},
doi = {10.1136/thoraxjnl-2015-207252},
journal = {Thorax},
pages = {45--51},
title = {Interobserver agreement for the ATS/ERS/JRS/ALAT criteria for a UIP pattern on CT},
url = {http://dx.doi.org/10.1136/thoraxjnl-2015-207252},
volume = {71},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Objectives To establish the level of observer variation for the current ATS/ERS/JRS/ALAT criteria for a diagnosis of usual interstitial pneumonia (UIP) on CT among a large group of thoracic radiologists of varying levels of experience.Materials and methods 112 observers (96 of whom were thoracic radiologists) categorised CTs of 150 consecutive patients with fibrotic lung disease using the ATS/ERS/JRS/ALAT CT criteria for a UIP pattern (3 categories—UIP, possibly UIP and inconsistent with UIP). The presence of honeycombing, traction bronchiectasis and emphysema was also scored using a 3-point scale (definitely present, possibly present, absent). Observer agreement for the UIP categorisation and for the 3 CT patterns in the entire observer group and in subgroups stratified by observer experience, were evaluated.Results Interobserver agreement across the diagnosis category scores among the 112 observers was moderate, ranging from 0.48 (IQR 0.18) for general radiologists to 0.52 (IQR 0.20) for thoracic radiologists of 10–20 years’ experience. A binary score for UIP versus possible or inconsistent with UIP was examined. Observer agreement for this binary score was only moderate. No significant differences in agreement levels were identified when the CTs were stratified according to multidisciplinary team (MDT) diagnosis or patient age or when observers were categorised according to experience. Observer agreement for each of honeycombing, traction bronchiectasis and emphysema were 0.59±0.12, 0.42±0.15 and 0.43±0.18, respectively.Conclusions Interobserver agreement for the current ATS/ERS/JRS/ALAT CT criteria for UIP is only moderate among thoracic radiologists, irrespective of their experience, and did not vary with patient age or the MDT diagnosis.
AU - Walsh,SLF
AU - Calandriello,L
AU - Sverzellati,N
AU - Wells,AU
AU - Hansell,DM
DO - 10.1136/thoraxjnl-2015-207252
EP - 51
PY - 2015///
SN - 1468-3296
SP - 45
TI - Interobserver agreement for the ATS/ERS/JRS/ALAT criteria for a UIP pattern on CT
T2 - Thorax
UR - http://dx.doi.org/10.1136/thoraxjnl-2015-207252
VL - 71
ER -