Table 1 Comparison of uptake grades evaluated visually in planar and SPECT/CT images
Region of knee | Grade in planar image (n, %) Grade 0/Grade 1/Grade 2 | Grade in SPECT/CT image (n, %) Grade 0/Grade 1/Grade 2 | p value |
|---|---|---|---|
Left lateral femur | 80 (76.9%)/20 (19.2%)/4 (3.8%) | 77 (74.0%)/20 (19.2%)/7 (6.7%) | < 0.0001 |
Left lateral tibia | 84 (80.8%)/18 (17.3%)/2 (1.9%) | 84 (80.8%)/14 (13.5%)/6 (5.8%) | < 0.0001 |
Left medial femur | 70 (67.3%)/27 (26.0%)/7 (6.7%) | 57 (54.8%)/32 (30.8%)/15 (14.4%) | < 0.0001 |
Left medial tibia | 72 (69.2%)/17 (16.3%)/15 (14.4%) | 64 (61.5%)/20 (19.2%)/20 (19.2%) | < 0.0001 |
Left patella | 76 (73.1%)/26 (25.0%)/2 (1.9%) | 59 (56.7%)/40 (38.5%)/5 (4.8%) | < 0.0001 |
Right lateral femur | 84 (80.8%)/15 (14.4%)/5 (4.8%) | 75 (72.1%)/20 (19.2%)/9 (8.7%) | < 0.0001 |
Right lateral tibia | 96 (92.3%)/8 (7.7%)/0 (0%) | 88 (84.6%)/14 (13.5%)/2 (1.9%) | < 0.0001 |
Right medial femur | 75 (72.1%)/18 (17.3%)/11 (10.6%) | 63 (60.6%)/22 (21.2%)/19 (18.3%) | < 0.0001 |
Right medial tibia | 74 (71.2%)/14 (13.5%)/16 (15.4%) | 65 (62.5%)/24 (23.1%)/15 (14.4%) | < 0.0001 |
Right patella | 75 (72.1%)/25 (24.0%)/4 (3.8%) | 61 (58.7%)/34 (32.7%)/9 (8.7%) | < 0.0001 |
Total | 786 (75.6%)/188 (18.1%)/66 (6.3%) | 693 (66.6%)/240 (23.1%)/107 (10.3%) | < 0.0001 |