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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Ann Biomed Eng. 2011 Jul 20;39(10):2521–2530. doi: 10.1007/s10439-011-0351-0

Table 2.

Effect of gel height on modulus as a function of gel percentage. For ultrasound measures, the only significant relationship between stiffness and height was for the 2 % gel. For the mechanical measures, a significant relationship between height and stiffness was seen in all except the 5% gel data.

Ultrasound Mechanical
Gel % R2 p-value R2 p-value
1 0.0487 0.12 0.6692 <0.0001
2 0.1495 0.0055 0.2009 0.0010
5 0.0231 0.28 0.0003 0.91
10 0.0297 0.22 0.2803 <0.0001