Summary of the region-of-interest size and the difference in uptake between the two injection rates for the six patients
| Size* | Minimum | Maximum | Mean | SD |
|---|---|---|---|---|
| ROI A | 28387.0 | 49495.0 | 36137.8 | 7879.1 |
| ROI B | 87.0 | 5084.0 | 2753.3 | 1983.5 |
| ROI C | 0.2 | 14.9 | 8.4 | 6.3 |
Note.—Minimum, maximum, mean, and SD are for the region of interest (ROI) for all the examined patients.
* ROI A: Size (in mm2) with substantial pixel intensity (above background noise) summed for all brain sections for all patients. ROI B: Size (in mm2) with pixel intensity difference (either positive or negative) greater than 20% between the two injection rates. ROI C: The same results as in ROI B expressed as percentage of total area measured (ROI A).