Table 2 Positive predictive value for non-response according to SPECT-CT grade
From: Value of SPECT-CT Imaging for Middle-Aged Patients with Chronic Anterior Knee Pain
SPECT-CT grade | 0 | 1 | 2 | 3 | p-value* |
|---|---|---|---|---|---|
PPV for non-response in the patella (non-responders/total patients) | 25 % (2/8) | 24 % (6/25) | 62 % (16/26) | 67 % (10/15) | 0.009 |
PPV for non-response in the trochlea (non-responders/total patients) | 0 % (0/1) | 43 % (9/21) | 50 % (14/28) | 46 % (11/24) | 0.954 |