Mean values, expressed as perfusion unit, of perfusion in 3 ROI.
| Group | Minimum Perfusion of ROI1 ± SD | Mean Perfusion of ROI2 ± SD | Maximum Perfusion of ROI3 ± SD |
|---|---|---|---|
| RP patients | 0.641 ± 0.076 | 0.635 ± 0.073 | 0.633 ± 0.075 |
| SSc patients | 0.791 ± 0.139 | 0.792 ± 0.138 | 0.783 ± 0.143 |
| Controls | 1.542 ± 0.238* | 0.895 ± 0.197 | 0.842 ± 0.171 |
↵* Mean perfusion of ROI1 is significantly higher than mean perfusion of ROI2 and ROI3. ROI: region of interest; RP: Raynaud’s phenomenon; SSc: systemic sclerosis.