MDX limit usage

Hi,

       Lets say after a basic query in MDX my output was 100 rows. If I want to limit to top 10 rows, I can use topcount. But, this usage of Topcount will fetch entire 100 rows from database and then pick the top 10 from it. I wonder if there is any other possible way to fetch top ten rows directly from database.

Thanks,

Raghav