Comparison Between Control and PD Groups for Each Brain Hemisphere (and Interhemispheric) of Striatal 11C-DTBZ DVR and Mean QA
| Control | PD | Control vs. PD statistical significance | ||||
| Parameter | Striatum | Mean QA | Striatum | Mean QA | Striatum | Mean QA |
| Left | 3.24 ± 0.26 | 4.9 ± 0.9 (×10−3) | 1.88 ± 0.25 | 4.1 ± 0.7 (×10−3) | t = 20.9; P < 10−6 | t = 3.9; P = 3 × 10−4 |
| Right | 3.20 ± 0.26 | 5.1 ± 0.9 (×10−3) | 2.06 ± 0.33 | 3.2 ± 0.8 (×10−3) | t = 14.9; P < 10−6 | t = 3.2; P = 0.002 |
| Left vs. right statistical significance | t = 1.8; P = 0.07 | t = −3.85; P = 0.002 | t = −5.3; P = 10−5 | t = −6.9; P < 10−6 | ||
Left hemisphere in PD group is hemisphere clinically most affected in PD patients; right hemisphere in PD group is hemisphere clinically least affected in PD patients.