Accuracy of MRI in diagnosing intra-articular pathology of the long head of the biceps tendon: results with a large cohort of patients

Table 3 Diagnostic Efficacy of MRI in Pathology of the Long Head of the Biceps Tendon

(%)	Diameter change		Contour irregularity		Alteration of signal intensity
(%)	Parasagittal	Axial	Parasagittal	Axial	Parasagittal	Axial
Sensitivity	52.0	66.7	56.0	58.2	66.6	59.7
Specificity	93.6	94.4	94.3	92.9	91.8	93.3
Accuracy	83.0	88.3	85.0	85.0	86.1	85.6
PPV^a	69.2	78.6	72.6	70.9	71.2	71.7
NPV^a	84.7	91.0	86.9	88.2	90.2	87.5
Cohen’s kappa	0.69	0.71	0.74	0.78	0.81	0.79

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