Correlation between IRT and LSCI. p < 0.01 for all comparisons. | |||||
B | t0 | t5 | t10 | t15 | |
ROI 1 | 0.73 | 0.62 | 0.81 | 0.84 | 0.75 |
ROI 2 | 0.70 | 0.58 | 0.84 | 0.83 | 0.81 |
ROI 3 | 0.81 | 0.65 | 0.82 | 0.82 | 0.83 |
Correlation between the RCS diary and LSCI assessment at ROI. 1 p > 0.05 for all comparisons. | |||||
Duration of RP attacks | 0.05 | −0.20 | 0.01 | 0.08 | 0.07 |
Frequency of RP attacks | 0.02 | −0.19 | −0.08 | 0.02 | 0.02 |
RCS | −0.02 | −0.01 | 0.01 | 0.00 | 0.00 |
RP: Raynaud phenomenon; SSc: systemic sclerosis; IRT: infrared thermography; LSCI: laser speckle contrast imaging; ROI: region of interest; B: baseline assessment at 23°C; t0: assessments immediately following cold challenge; t5: perfusion 5 min post cold challenge; t10: perfusion 10 min post cold challenge; t15: perfusion 15 min post cold challenge; RCS: Raynaud Condition Score.