Table 4.
Errors in organ activity estimates at the 5 hr time point with and without registration.
| % | Heart | Lung | Liver | Kidney | Spleen | Bone Marrow | Blood Vessel | |
|---|---|---|---|---|---|---|---|---|
| Mean ± STD | W | 0.4 ± 1.3 | 4.3 ± 5.6 | -0.1 ± 1.6 | 2.2 ± 2.4 | 0.2 ± 2.4 | 6.8 ± 7.2 | -6.7 ± 13.5 |
| W/O | -6.7 ± 5.2 | 22.9 ± 18.6 | -1.1 ± 7.7 | -28.2 ± 17.8 | 17.8 ± 12.7 | -11.2 ± 21.7 | -72.2 ± 25.7 | |
| Range | W | -3.1 - 3.1 | -11.0 - 16.7 | -4.0 - 4.9 | -3.1 - 10.9 | -4.6 - 8.0 | -12.3 - 18.6 | -33.4 - 22.8 |
| W/O | -20.0 - 2.1 | -5.6 - 62.3 | -18.3 - 12.9 | -1.1 - 69.2 | -31.2 - 20.2 | -40.0 - 39.2 | -95.4 - 35.9 | |
| Median | W | 0.4 | 4.1 | -0.2 | 1.6 | -0.5 | 8.4 | -8.0 |
| W/O | -5.8 | 23.0 | -0.2 | -23.7 | -19.7 | -4.6 | -80.0 | |
| Mean of absolute | W | 1.0 | 5.7 | 1.2 | 2.4 | 1.7 | 8.9 | 12.5 |
| W/O | 6.9 | 23.2 | 6.2 | 28.2 | 20.2 | 17.5 | 72.2 | |
| p-value* | 0.01 | 0.01 | 0.01 | 0.007 | 0.001 | 0.01 | <10e-5 | |
W: with registration, W/O: without registration.
*
p-value is for paired t-test comparing activity estimates w/ and w/o registration.