Biomedical Engineering Reference
In-Depth Information
7.5 Summarizing Thoughts
In this chapter, we evaluated the impedance in its non-parametric model form and its
parametric model form over several frequency intervals. It turns out that no generic
model can cope with the strongly varying, frequency-dependent, impedance values.
However, the parameters of the proposed models are all linked to anatomical, mor-
phological, and structural features in the respiratory system, so there is a link to
physiology.
Next research directions may evaluate which of these models are most sensitive
to airway changes and which of these are sensitive to tissue changes. Consequently,
further studies may reveal directions for developing strategies to select the model
according to the clinical target.
