Basic Acquisition Configurations Evaluated Using Thorax Phantom
| Collimator | 64 × 64 matrix (128 projections/360°) | 128 × 128 matrix (256 projections/360°) | ||
|---|---|---|---|---|
| Counts × 106 | Locations seen | Counts × 106 | Locations seen | |
| All purpose | 1.5 | 10 | — | — |
| 2.9 | 16 | 3.2 | 16 | |
| 5.6 | 19 | 6.2 | 17 | |
| 10.8 | 19 | 12.0 | 19 | |
| High resolution | 0.7 | 7 | — | — |
| 1.3 | 12 | 1.5 | 13 | |
| 2.6 | 18 | 2.9 | 15 | |
| 4.9 | 18 | 5.5 | 23 | |
Total acquired counts and resulting perceptibility in terms of number of emboli locations seen for different collimators and matrix sizes. Level up to which additional counts resulted in improved perceptibility are indicated in boldface type.