Diagnosing, planning and evaluating osteochondral ankle defects with imaging modalities

Table 1 Accuracy of different imaging techniques in diagnosing talar osteochondral defects[1]

	Sensitivity	Specificity	Positive predictive value	Negative predictive value
Standard radiography	0.59	0.91	0.70	0.86
Heel-rise radiography	0.70	0.94	0.79	0.90
Computed tomography	0.81	0.99	0.96	0.94
Magnetic resonance imaging	0.96	0.96	0.89	0.99

The differences between computed tomography and magnetic resonance imaging were not statistically significant (P = 0.33).