Table 1:
Relationship evaluation of velocity components (Vx, Vy and Vz) and magnitudes (Vmag) between tomo-PIV and 4D Flow MRI at the locations shown in Fig. 5. The comparison was performed by calculating root-mean-square error (RMSE), slope of the linear regression and correlation coefficient (R2).
RMSE [m/s] | Slope | R2 | |
---|---|---|---|
Location 1 | |||
Vx | 0.032 | 0.916 | 0.972 |
Vy | 0.02 | 1.19 | 0.959 |
Vz | 0.013 | 0.645 | 0.463 |
Vmag | 0.044 | 1.013 | 0.952 |
Location 2 | |||
Vx | 0.028 | 0.98 | 0.965 |
Vy | 0.023 | 1.036 | 0.957 |
Vz | 0.019 | 0.734 | 0.573 |
Vmag | 0.036 | 1.009 | 0.956 |
Location 3 | |||
Vx | 0.043 | 1.214 | 0.9 |
Vy | 0.031 | 0.916 | 0.812 |
Vz | 0.066 | 1.262 | 0.426 |
Vmag | 0.055 | 1.099 | 0.81 |