3 doctors weighed in:

What is a computered tomography angiography?

3 doctors weighed in
Dr. Michael Gabor
Diagnostic Radiology
2 doctors agree

In brief: CTA

It is an intravenous contrast-enhanced CT scan with technical parameters that optimize detailed visualization of the arterial system. 3D and multiplanar data reconstructions can produce images that look similar to standard catheter angiography.
From a patient's point of view, the scanning experience won't be much different from getting a standard CT scan with contrast.

In brief: CTA

It is an intravenous contrast-enhanced CT scan with technical parameters that optimize detailed visualization of the arterial system. 3D and multiplanar data reconstructions can produce images that look similar to standard catheter angiography.
From a patient's point of view, the scanning experience won't be much different from getting a standard CT scan with contrast.
Thank