Fig. 3From: Value of SPECT-CT Imaging for Middle-Aged Patients with Chronic Anterior Knee PainSPECT-CT image correlation with arthroscopic findings in the patella. a SPECT-CT grade 1 and ICRS grade 1; b SPECT-CT grade 2 and ICRS grade 2, c SPECT-CT grade 3 and ICRS grade 3Back to article page