MRI and Stroke?

My mom had an MRI a little while ago. Then when the results came back they told her nothing but made her an appointment with the stroke clinic. She asked the doctor if there was something wrong and he said no then said yes but didn't give her any details he just told her to prepare to stay at the hospital. She does have cerbral palsy so she may have had a mini stroke and not even know because basically the whole right side of her body is slightly paralyzed anyway. Anyone have any ideas what might be happening?