No no no Erika. All the MRI's I've had have caused noise, but this one was just so much noisier. I had not had a CAT scan until I went to Mayo 3 years ago, for a workup on the Polycythemia Vera. Since then I had another CAT scan when I fell down the stairs in Seattle. Both times there was no noise, but I saw an exploding light in my head during the CAT scan, which they said was impossible. Not impossible for me. I HATE CAT scans and I hope I don't fall down and have to have another one. The exploding light in my head made me nauseous.