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Quantitative 99mTc-pyrophosphate Imaging Metrics
| Imaging metric | No ATTR CA (n = 49) | ATTR CA (n = 23) | P |
| SUVmean | 1.3 ± 0.3 | 2.4 ± 0.6 | <0.0001 |
| SUVmax | 2.3 ± 0.6 | 4.7 ± 1.1 | <0.0001 |
| CAA | 513 ± 196 | 1263 ± 461 | <0.0001 |
| %ID | 0.61 ± 0.23 | 1.59 ± 0.54 | <0.0001 |
Data are mean ± SD.
