Is it possible to see aneurysm or stroke on head ct?

Yes. Plain ct scan is not the best test for aneurysm or stroke. Large strokes (especially old ones) and large aneurysms can potentially be spotted on a ct. Mri is a better test for both, especially when blood vessels are looked at as well.
Possibly. If an aneurysm is large enough or a stroke old enough, you can see those on a head ct. An MRI is a better evaluation of an acute stroke and and mra or cta is the best way to look for an aneurysm.

Related Questions

Is rowing a bad idea for someone with a small aneurysm detected on head CT scan?

Depends. This is a question whose answer is *highly individualized*. The doctor who diagnosed this aneurysm (and is familiar with the rest of your medical history and current medical state) is the one best qualified to give you a good answer to this. Read more...
It depends. It depends on where is the aneurism, how big is it, and are there more medical problems, it is best to check with your pcp or neurologist. Read more...

I had 2 head CT scans in 3 months and 4 x rays. One for suspected stroke (negative) and one for concussion. I am 28 year old female? Scan cancer risk?

Exposure . You should discuss radiation exposure with any doctor ordering CT, X-ray, nuclear medicine or other radiation exposure tests. There is a cumulative effect and these tests should be done only when the need for the information justifies the exposure. . Read more...