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Heart-to-background uptake ratio according to the right ventricular (RV) uptake
| Heart-to-background ratio | No RV uptake | Positive RV uptake | p value |
|---|---|---|---|
| Whole-body | 1.78 ± 0.41 | 2.17 ± 0.69 | < 0.01 |
| SPECT anterior projection | 1.77 ± 0.31 | 2.03 ± 0.65 | ns |
| SPECT LAO projection | 1.95 ± 0.56 | 2.08 ± 0.68 | < 0.05 |
| SPECT 3D | 3.46 ± 1.18 | 4.21 ± 1.82 | < 0.05 |
