Table 4.
Count rates in counts per minute for Age-22 SPECT scan shown in Figure 1.
| Slice location | Region | Left | Right |
|---|---|---|---|
| Basal ganglia | 1313 (+1.7%)* | 1322 (+2.4%) | |
| Thalamus | 1205 (−6.6%) | 1182 (+8.4%) | |
| Cerebellum | 1311 (+1.6%) | 1270 (−1.6%) | |
| 2.5 cm above canthomeatal line | |||
| Medial frontal | 970 (−24.8%)** | 949 (−26.5%) | |
| Lateral frontal | 974 (−24.4%) | 974 (−24.4%) | |
| Anterior temporal | 1243 (−3.7%) | 1283 (−0.6%) | |
| Posterior temporal | 1189 (−7.9%) | 1066 (−17.4%) | |
| 5.0 cm above canthomeatal line | |||
| Occipital | 1027 (−20.4%) | 1047 (−18.9%) | |
| 7.0 cm above canthomeatal line | |||
| Superior frontal*** | 1002 (−22.4%) | 1059 (−17.9%) | |
| 1007 (−22.0%) | 1029 (−20.2%) | ||
| Midparietal*** | 1059 (−17.9%) | 1111 (−13.9%) | |
| 997 (−22.7%) | 1102 (−14.6%) |
*Percent differences are relative to the average of the cerebellum count rates.
**A reduction >12% is considered clinically significant.
***For superior frontal and midparietal regions, duplicates were quantitated.