Table 4.

Statistical analysis of model agreement to experimental data of sensor insertion in the longitudinal or transverse orientations. Root-mean-square error (RMSE, Eq. (3)) and normalized root-mean-square error (NRMSE, Eq. (4)). Note that for passive and active stress, the model was fit to experimental data (hence the smaller errors) and that all pressure comparisons are independent validation.

Statistic	Passive stress (kPa)	Passive pressure (mmHg)	Active stress (kPa)	Active pressure (mmHg)
RMSE	1.26	3.53	0.119	35.3
NRMSE	0.765%	11.7%	0.0786%	48.1%