Table 3.
Comparison of the presence of synovial SMI and PDI signals
| cSMI | PD | Total | χ 2 | P | |
|---|---|---|---|---|---|
| + | − | ||||
| + | 49 | 57 | 106 | 229.1 | < 0.001 |
| − | 1 | 465 | 466 | ||
| Total | 50 | 522 | 572 | ||
SMI superb microvascular imaging, PDI power Doppler imaging
+ positive result, − negative result
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