Quantitative MRI indicators and features for partial subscapularis tendon tears on conventional shoulder MRI

Insights into Imaging

Table 4 Diagnostic performance of the associated imaging signs on MRI interpretations compared to arthroscopic findings (gold standard)

	Fissure sign	Thinning of SSC	Fluid collection under the CGA	LTC	Combined SSP complete tear
Sensitivity	75.3	38.2	50.6	56.2	48.3
Specificity	92	86	80	68	80
PPV	94.4	82.9	81.8	75.8	81.1
NPV	67.6	43.9	47.6	46.6	46.5
Accuracy	81.3	55.4	61.2	60	59.7

SSC Subscapularis, CGA Coraco-glenoid arch, LTC Lesser tuberosity cysts, SSP Supraspinatus tendon, PPV Positive predictive value, NPV Negative predictive value