Yes, as Litso said, you can send whatever you want as the path name for viewing the GA page, but you will want to automate the process using JavaScript.
The following code will take the current URL path (which excludes the query string) and use it as the pagename value.
_gaq.push(['_trackPageview', location.pathname ]);
Or, conversely, if you use the old _gat code,
pageTracker._trackPageview(location.pathname);
So, if your URL is http://example.com/path/to/page.html?supersecretinfo , it will be tracked in GA as / path / to / page.html
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