question: I had a recent MRI/MRA test without contrast. At times, I felt like I was vibrating. (The results were no problems - normal brain.) However, I am wondering is it possible to have a sharp brief pain during this test. I sure believe I did and wonder what might have caused it.As well, I had a duplex sonogram of right carotid artery and the scanning really ran up/down on a sore spot. That test revealed 50% plus blocked external right carotid artery. Any thoughts on the pain/tenderness issues.