Q. Can CT be used to check ascending aorta?

Answered by
Dr. Ilir Sharka
and medically reviewed by Dr. Divya Banu M
This is a premium question & answer published on Jun 29, 2019

Hello doctor,

I recently had an echo done a month ago. It came back normal. I was reading my finding and I saw it was an enlarged ascending aorta at 3.7. They never said anything about that. So I got an appointment to go to a heart doctor and he looked at my echo and said everything was fine. But I told him I would like a CT scan with contrast to see was this true. So I did my CT chest with contrast. It came back with no finding, no aneurysm and my ascending aorta was 3.3. Is the CT more accurate or could the contrast block it? I am just asking. This is confusing to me.



Welcome to

Regarding your concern, I would like to explain that contrast enhanced angio CT is very accurate at delineating the aorta anatomy, its dimensions and any possible abnormality like enlargement or aneurysm. As your CT scan has resulted within normal ranges you should relax and not worry about it any more. You may perform an angio MRI after a distant period (after several years), if it is required by your doctor, as it has no radiation.

Thank you doctor,

I do not need to do another echo soon and is the reading of my ascending aorta more correct in the CT than the echo reading? Could the echo have been read wrong. This is scary to me.



Welcome back to

You have performed the angioCT of aorta which is precise and gives correct measurement values. So, for the moment, you do not need another imaging test. Echo may not provide the sufficient resolution and sometimes may not be possible to get the right windows for exactly measuring the aorta. So, you do not have to worry about this issue. Everything seems fine.

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