To get the correct time stamp of a fslogix profile

Hello together,

we are compacting the fslogix profile container every weekend.

Therefore the time stamp of the vhdx file has the compacting time and not the last usage time of the profile.

Now we want to delete all profiles older than e.q. 6 month. 

How can I check and compare the age of the fslogix profiles (after compacting), for example we will use a powershell script.

Does anyone have any ideas?

Thanks in advance and kind regards,

Bernd