Variability of acquisition phase of computed tomography angiography in acute ischemic stroke in a real-world scenario

ConclusionsDespite different technical equipment and examination protocols, the overall number of CTAs with venous contrast was low and did not differ between the CSC and the PCSs. Differences between the further differentiated contrast phases indicate potential for further improvement of CTA acquisition protocols.Key Points•Despite different technical equipment and examination protocols in the diagnostic workup of acute ischemic stroke, the total number of computed tomography angiography (CTA) with venous contrast was low (n = 13/871; 1.5%).•A higher venous than arterial contrast density at the level of the circle of Willis was not more frequent in CTAs from the centers with a high patient volume (comprehensive stroke center) compared to the hospital with lower patient volume (primary stroke centers).•Differences between the further differentiated contrast phases indicate that there is potential for further improvement of CTA acquisition protocols.
Source: European Radiology - Category: Radiology Source Type: research