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ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

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Fig. 1:Dependent<br />

and independent<br />

variables<br />

Fig. 2: Percentage of influence of the different factors on the output variables. Left:<br />

Percentage of influence of the deferent factors on .. Right: Percentage of<br />

influence of the different factors on .<br />

Fig. 3: Effects of the different factors on<br />

The maximal relative error between the two approximations was 2.1%. found by<br />

FEA was 1.4 Mpa and the value found by the regression was 0.94 Mpa, which means a<br />

relative error of 33%.<br />

Fig. 5: Comparison of FEA (left) and regression<br />

(right) of in the trachea of a patient.<br />

5. DISCUSION<br />

Fig. 6: Comparison of FEA (left) and regression<br />

(right) of in the trachea of a patient.<br />

The aims of the statistical study is to get a quantitative idea about the main input<br />

variables and their effect on the tracheal movement and its stress state during<br />

swallowing and after prosthetic insertion, which avoids the use of commercial programs<br />

that, although more accurate, are expensive and complex to use by surgeons. This work<br />

provides them a simple, fast and efficient tool to help them planning surgical prosthetic<br />

implantation in an optimal way and reduced time.

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