Table 2.
Reproducibility of washout rate calculations
| Case | PLb | PLn | PMpx | PMave | Ssum | Ssec | |
|---|---|---|---|---|---|---|---|
| TGCV without OMI | |||||||
| Mean (%) | − 7.2 | 2.0 | − 1.8 | − 1.8 | − 1.5 | 0.0 | |
| SD (%) | 3.2 | 1.6 | 2.5 | 2.1 | 2.3 | 0.2 | |
| Non-TGCV without OMI | |||||||
| Mean (%) | 26.4 | 11.6 | 18.0 | 17.2 | 17.2 | 21.2 | |
| SD (%) | 7.4 | 3.2 | 0.7 | 0.6 | 1.9 | 1.3 | |
| TGCV with large metabolic defects | |||||||
| Mean (%) | 1.6 | − 0.8 | − 1.0 | 0.0 | − 4.2 | 0.4 | |
| SD (%) | 10.0 | 2.4 | 1.4 | 1.5 | 1.1 | 1.3 | |
| Non-TGCV with defect caused by OMI | |||||||
| Mean (%) | 21.4 | 4.0 | − 8.2 | 5.5 | 3.6 | 11.8 | |
| SD (%) | 11.2 | 4.7 | 1.5 | 1.2 | 1.5 | 1.1 | |
Six methods are as follows: PLb, planar method with background correction; PLn, planar method without background correction; PMpx, polar map method with pixel-based calculation; PMave, polar map method with average count; Ssum, short-axis sum (SAsum) image method with total count calculation; Ssec, SAsum method with eight-sector calculation, OMI old myocardial infarction, TGCV triglyceride deposit cardiomyovasculopathy