On the choice of acceptance radius in free-response observer performance studies

Choosing an acceptance radius or proximity criterion is necessary to analyse free-response receiver operating characteristic (FROC) observer performance data. This is currently subjective, with little guidance in the literature about what is an appropriate acceptance radius. We evaluated varying acc...

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Bibliographic Details
Published in:British journal of radiology 2013-01, Vol.86 (1021), p.42313554-42313554
Main Authors: Haygood, T M, Ryan, J, Brennan, P C, Li, S, Marom, E M, McEntee, M F, Itani, M, Evanoff, M, Chakraborty, D
Format: Article
Language:English
Subjects:
Humans
MIPS special feature
Observer Variation
Radiographic Image Enhancement - methods
Radiographic Image Interpretation, Computer-Assisted - methods
Radiography, Thoracic - methods
Reproducibility of Results
ROC Curve
Sensitivity and Specificity
Solitary Pulmonary Nodule - diagnostic imaging
Tomography, X-Ray Computed - adverse effects
Tomography, X-Ray Computed - methods
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Summary:Choosing an acceptance radius or proximity criterion is necessary to analyse free-response receiver operating characteristic (FROC) observer performance data. This is currently subjective, with little guidance in the literature about what is an appropriate acceptance radius. We evaluated varying acceptance radii in a nodule detection task in chest radiography and suggest guidelines for determining an acceptance radius. 80 chest radiographs were chosen, half of which contained nodules. We determined each nodule's centre. 21 radiologists read the images. We created acceptance radii bins of
ISSN:0007-1285
1748-880X
DOI:10.1259/bjr/42313554