Blurry vision, ghost images and nighttime halos around lights all can be warning signs of eye problems. 1  A flood of spots and floaters in your field of vision. 2  A sensation that a dark curtain has settled across your field of view. 3  Sudden eye pain, redness, nausea and vomiting.  Double vision, double images or ghost images.
MR Angiography (MRA) MR angiography (MRA) uses a powerful magnetic field, radio waves and a computer to evaluate blood vessels and help identify abnormalities or diagnose atherosclerotic (plaque) disease.
How to Prepare for Your MRI and MRA Contrast Study. If you are having an MRI or MRA with a contrast injection please be sure drink plenty of water before and after the exam. This will ensure that the injection itself is as painless as possible and that the Gadolinium is flushed out of your system quickly. Not all patients can receive Gadolinium injections.