Is it possible to create and use a templated structure in DocBook 5?

Question

I'm using DocBook 5. Is it possible to create a template (let's call it 'mytable') with certain structures like:

<informaltable>
    <tgroup cols="1">
        <tbody>
            <row>
                <entry>
                    <inlinemediaobject>
                        <imageobject>
                            <imagedata fileref="{path_variable}"/>
                        </imageobject>
                    </inlinemediaobject>
                </entry>
            </row>
        </tbody>
    </tgroup>
</informaltable>

and reuse 'mytable' and also pass a variable to the template? So conceptually I can do:

mytable("path/to/file/1")
mytable("path/to/file/2")
mytable("path/to/file/3")

and so on, each of which expands to an 'informaltable' element.