Efficient Sensitivity Based Reconstruction Technique to Accomplish Breast Hyperelastic Elastography

Table 7

The hypothetical hyperelastic parameters of the malignant tumor, namely, the ILC, in the breast estimated for the Yeoh model using the suggested iterative stress-strain relation-based algorithm.

Hypothetical Hyperelastic		Estimated; Hyperelastic; Parameters	Estimates; of; Previous	Estimates; of; Next
(Pa)	0.18034160e+04	(Pa)	1.7951433e+03	1.7934292e+03
(Pa)	0.15985308e+04	(Pa)	3.0443848e+03	3.1841804e+03
(Pa)	6.63359617e+04	(Pa)	0.0002843e+03	0.0002742e+03
Error of (%)	0.0127098e+03	Error of (%)	13.1102	13.1932
Error of (%)	0.0218322e+03	Error of (%)	48.8697	55.7056
Error of (%)	6.5468899e+03	Error of (%)	99.9715	99.9725
Error of (%)	0.2512	Error of (%)	0.2593	0.2611

consideration of the minimum error of the estimates of tumor elastic modulus, the hypothetical hyperelastic parameters have been chosen. The parameters achieved in the previous and next iterations do not straightly converge to the real hyperelastic parameters of the tumor by the use of the iterative sensitivity-matrix based algorithm.