EMB ERJ 145 ER/LR
Communication Breakdown; Workload; Time Pressure
Aircraft Equipment Problem Less Severe
Flight Crew Inflight Shutdown; Flight Crew Returned To Departure Airport; Flight Crew Landed in Emergency Condition
Aircraft; Procedure; Company Policy; Manuals
Leveling at 16;000 feet; aircraft yawed slightly.  Captain (CA) noticed engine 1 roll back.  EICAS message E1 rev fail appeared.  Followed QRH and requested return immediately to ZZZ.  We ran landing checklist.  Relayed info to Flight Attendant (FA) and company.  CA made PA.  Landed ZZZ with no further issues.QRH for E1/2 rev fail refers you to precautionary engine shut down checklist.  It would be helpful if when the QRH refers you to another checklist; if it also included the page number of the checklist.  It would make a potentially high stress high workload situation a little bit easier.I communicated with dispatch regarding the situation.  I told dispatch we performed a precautionary engine shutdown.  Dispatch responded.  I replied that we would be [on] the ground in 7 minutes.  I was surprised when the dispatcher sent us another message.  I would have thought the dispatcher would know that with [an] engine shut down and 7 minutes to land; that it was not an appropriate time to query us for more information asking why we shut down the engine.  That information was not time critical.  It could have waited until we were on the ground.I do not think the company could have done anything to prevent this situation.  I think training served me well preparing me for potential emergencies such as the precautionary shutdown.  I will use today's event in combination with continued training to handle possible future events to the best of my ability.
[Report narrative contained no additional information.]
An EMB145 had an engine rollback and EICAS displayed E1 REV FAIL when leveling at 16;000. The crew followed QRH; shut down the engine; and returned to land.