# How useful is an MRA?

**URL:** <https://forum.livingwitheagle.org/t/how-useful-is-an-mra/16067>\
**Category:** General\
**Created:** [May 2, 2024, 12:44pm UTC](https://forum.livingwitheagle.org/t/how-useful-is-an-mra/16067 "2024-05-02T12:44:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![LG18](https://avatars.discourse-cdn.com/v4/letter/l/439d5e/32.png) [@LG18](https://forum.livingwitheagle.org/u/LG18)\
**Post date:** [May 2, 2024, 12:44pm UTC](https://forum.livingwitheagle.org/t/how-useful-is-an-mra/16067/1 "2024-05-02T12:44:42Z")

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Hi everyone,

Contrast dye concerns aside, how useful is an MRA for assessing both arterial compression and also the distances of the styloids to the vessels?

I can see here a few people have had one done, so for what reason is a CTA the imaging modality of choice over an MRA/MRV?

Thanks!

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**Author:** ![Jules](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.livingwitheagle.org/jules/32/404_2.png) [@Jules](https://forum.livingwitheagle.org/u/Jules)\
**Post date:** [May 2, 2024, 6:54pm UTC](https://forum.livingwitheagle.org/t/how-useful-is-an-mra/16067/2 "2024-05-02T18:54:01Z")

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CTs show the styloids much better as they’re bony, so that’s why a contrast CT is usually chosen. I guess that MRAs have maybe been done if there’s a suspicion of something other than ES going on?