Using "Match" in a Linq statement

I have a table that has two records (there will be many at runtime). The deviceId of the records are, “DEVICE1” and “DEVICE2”. I want to use a regular expression to extract records.

The code below compiles but fails to return a result. When I hover the cursor on the “devices.ToList()” statement I get the following error:

base {System.SystemException} = {"LINQ to Entities does not recognize the method 'System.Text.RegularExpressions.MatchCollection Matches(System.String)' method, and this method cannot be translated into a store expression."}”

Can anyone show me how I can modify my query so that this would return records based on the expression?

filterText = @"DEVICE.";
Regex searchTerm = new Regex(filterText);

using (var ctx = new MyEntities())
{
 var devices = from d in ctx.Devices
                let matches = searchTerm.Matches(d.DeviceId)
                where matches.Count > 0
                select ((Device)d);
return devices.ToList();
}