Chest Radiography

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Issues in Classification of Chest Radiographs

As with most medical determinations, radiographic classifications are subject to accuracy and precision considerations. Accuracy is defined as the ability for a measurement to reflect the true degree of underlying abnormality, that is, unbiasedness. Precision reflects the extent to which a measurement is consistent across repeated determinations. Both criteria are important – a measurement technique can be precise but inaccurate, or can be accurate and imprecise, but preferably should be both accurate and precise.