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. 2024 Aug 27;23(6):1977–2004. doi: 10.1007/s10237-024-01878-8

Table 4.

(i) Personalized electrical, mechanical and Windkessel parameters. (ii) Calibration and validation errors and errors eI and eII used to assess the validity of our cross-validation (except for P11 because of missing data of right pacing)

P2 P3 P4 P6 P8 P11
Electrical
σ^f[10-4·ms-1] 2.29 1.99 1.37 1.91 1.91 1.57 Conductivity along the fibres
normalized wrt the surface-to-volume ratio
and the transmembrane capacitance
σ^s[10-4·ms-1] 1.05 0.91 0.62 0.87 0.87 0.72 Normalized conductivity—sheets direction
σ^n[10-4·ms-1] 0.34 0.29 0.20 0.28 0.28 0.23 Normalized conductivity—normal direction
c0[s-12] 84.37 73.36 77.03 73.36 80.70 73.36 Velocity of the depolarization
wave along the fibre direction
for a planar wavefront
ε[-] 11.96 14.95 14.20 19.46 14.95 14.95 Impact of the wavefront
curvature on the propagation velocity
z[0,1][-] 1.0 1.0 1.0 0.7 0.7 0.9 Decreased electrical conductivity
and active contractility in fibrotic regions
(z=1 denotes the healthy tissue);
Tissue stiffening and reduced contractility
by a stiffness rescaling of [z+(1-z)4.56]
Calibration error [%] 4.0 6.1 7.3 5.9 9.9 4.6
Validation error [%] 7.8 4.9 4.1 3.4 6.0
eI [%] 14.4 18.8 15.8 44.1 6.5
eII [%] 12.9 13.7 25.4 49.2 12.7
Mechanical
aXB[102·M] 2.70 3.07 3.21 2.66 1.87 2.06 Myocardial tissue contractility
Windkessel
R[107·Pam-3] 3.40 3.00 3.92 2.8 5.60 3.50 Resistance of the two-element
Windkessel model for the circulatory
system during the ejection phase