Table 3.

Effect of changes in fiber distribution on the active contraction component alone for Hearts 1 and 2. Changes in inclination angle had a direct effect upon the strain predictions for the SNR 0.1 cases, particularly in the circumferential direction strain predictions.

	Cir. strain		Radial strain
	%RMSE	R 2	%RMSE	R 2
Heart 1
Validation study	0.098	0.813	0.138	0.780
SNR 0.1 normal fiber	0.131	0.786	0.145	0.750
SNR 0.1 + 5% IA	0.212	0.745	0.144	0.735
SNR 0.1 − 5% IA	0.160	0.753	0.142	0.737
Heart 2
Validation study	0.093	0.830	0.113	0.780
SNR 0.1 normal fiber	0.114	0.790	0.124	0.770
SNR 0.1 + 5% IA	0.156	0.630	0.214	0.600
SNR 0.1 − 5% IA	0.247	0.302	0.331	0.500

IA: inclination angle.