Identifying if Raster Dataset has pyramids?

[CurtisRuck]

In a geoprocessing environment, how do you identify if a raster dataset has pyramids? 

I am creating a Raster Catalog Pyramiding script but i only want to generate pyramids for tiles that don't have them.  I have well over one million datasets in a catalog and would like to speedup generating pyramids for all datasets.

I am storing the Catalog in a FileGeodatabase.  Its also unmanaged due to file space of decompressed raster datasets.

[ZachEdwards]

This probably doesn't answer your question but I would just set your environment settings under raster storage to create pyramids. This way, it will always create pyramids. It will probably skip over those that already have them. Even if it overwrites them, that is better than it not working at all for you.

[CurtisRuck]

Yea, that doesn't help.  I'm trying to precreate pyramids to speed up raster webservices before they are requested.