Table 1.

Strain (mean ± standard deviation) for masses in groups A, B, C, and D, and background measured from the SENC-CMP and SENC-REX images.

	Group A	Group B	Group C	Group D	Background
	Hardest	Hard	Softest	Soft	Intermediate
SENC-CMP	−10.1 ± 3.4	−25.5 ± 1.3	−33.7 ± 1.7	−28.3 ± 0.8	−28.5 ± 2.2
SENC-REX	8.6 ± 3.7	13.7 ± 4.1	40.5 ± 3.7	36.3 ± 2.5	30.5 ± 3.9

Note: SENC-CMP = SENC compression, and SENC-REX = SENC relaxation.