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Table 4 The calculation formulas of evaluation indices

From: Intelligent localization and quantitative evaluation of anterior talofibular ligament injury using magnetic resonance imaging of ankle

Evaluation indices

Calculation formulas

Accuracy

\(Acc = \frac{TP + TN}{{TP + FN + FP + TN}}\)

Sensitivity

\(Sen = \frac{TP}{{TP + FN}}\)

Specificity

\(Spe = \frac{TN}{{FP + TN}}\)

Precision

\(\Pr e = \frac{TP}{{FP + TP}}\)

F1 score

\(F1 = \frac{2*\Pr e*Sen}{{\Pr e + Sen}}\)

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BMC Medical Imaging

ISSN: 1471-2342

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