Use view "sys.dm_db_index_operational_stats".
Capture the values at the start time, then recapture them at any subsequent time, subtract the two values, and voila, you have the mods that occurred during that time.
SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".