| Studies | Population | Spectral Doppler | Results |
|---|---|---|---|
| Marina et al. (2016) [31] | PsO |
NVRI Median (IQR): 0.62 (0.55–0.69) | Patients with PsO presented with significantly higher median NVRI measurements than controls (p < 0.0001) |
| Controls |
NVRI Median (IQR): 0.57 (0.55–0.58) | ||
| Mendonça et al. (2014) [34] | PsA |
LRI Mean (SD): 0.50 (0.13) TRI Mean (SD): 0.48 (0.09) | RI measurements in both the transverse and longitudinal planes were lower for patients with PsA than controls. |
| Controls |
LRI Mean (SD): 0.86 (0.41) TRI Mean (SD): 0.70 (0.16) | ||
| El-Ahmed et al. (2011) [40] | PsO |
NVRI Mean (SD): 0.56 (0.09) | The mean NVRI was significantly higher in PsO than controls (p < 0.001). Patients with PsO with clinical nail disease had also significantly higher NVRI than those without nail disease (p < 0.05). |
| Patients with PsO with nail disease |
NVRI Mean (SD): 0.58 (0.10) | ||
| Patients with PsO without nail disease |
NVRI Mean (SD): 0.52 (0.45) | ||
| Controls |
NVRI Mean (SD): 0.42 (0.04) |