Accessing a Static Parameter Description value from within a Report

<p>How (or can I) access the Parameter properties, like Description(s) from the list of possible Parameter values?</p><p>I&#39;d like to do this from within a report, in a formula, based on the parameter value that was selected. In this case the user can select only one value, and I&#39;d like to display that Description in the report header.</p>