I would REALLY appreciate any help I can get. I will be doing a Brain MR Angio and a Brain Venogram at a private clinic in about a week's time. Originally, my neurologist suggested for me to do a CT Angiogram via the public healthcare system, but I decided to request MRA/MRV instead because 1) the CT Angiogram won't be for a few weeks and 2) I've already had a number of noncontrast CTs on my brain, two in 2010 and one just a week ago, and am not comfortable with doing another one at this time. When I asked him why a CT Angiogram and not an MRI, he just said that the resolution is higher for CT.
The medical events that precipitated this chase for imaging is the following: in the long term, I have had chronic vascular headaches (10+ years) that cannot be described as migraines—and these have recently worsened. Also, literally overnight, about 10 days ago, following a very stressful situation, I experienced a sudden and sustained elevation in blood pressure and resting heart rate (from a regular 80/50 mm Hg and around 60 bmp, which I've had for all my life, to 120/85 mm Hg to 90 bpm).
Is there anything serious or important that might be missed by opting for MRA/MRV over CT Angiogram? In other words, for my situation, will the two types of tests be comparable in what they are able to diagnose? I really want to avoid CT as much as possible. Thank you so much.
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source https://www.reddit.com/r/Radiology/comments/i0sw5v/brain_mr_angio_brain_venogram_limitations/
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