I went to Mayo for what I thought was vertigo, they did a hearing test and I was told by the doctor I had a tumor and needed a MRI. I can't have MRI's due to a metal implant in my body so they did a cat scan. I was told it was normal, however I just recently started having some light vertigo. I'm a flight attendant so even slight vertigo can have an impact but also flying can cause vertigo. So my question was was the cat scan as effective as a MRI and could they have missed ti?