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Cutoff points for phase parameters in the four software programs
| QGS | ECTb | 4DM | cREPO | |
|---|---|---|---|---|
| Bandwidth (°) | 24 | 35 | 36 | 42 |
| Phase SD (°) | 8.6 | 15.3 | 9.4 | 11.9 |
| Entropy (%) | 31 | – | – | 48 |
Abbreviations: 4DM Corridor 4DM, cREPO cardioREPO, ECTb Emory Cardiac Toolbox, QGS quantitative gated SPECT
