When is an MRI most reliable for a bone running injury?

One of the things about getting an MRI has to do with timing of the injury. What do I mean by that? Well, it means timing in terms of when the MRI is done relative to how long it has been since you actually beat it up and injured that structure. When is an MRI most reliable for a bone running injury like a stress fracture? Well, that's what we're talking about today on the Doc The On Run Podcast.