Abstract
Objective To discuss the value of 4D-CTA using 320-row area detector in diagnosis of cerebral arteriovenous malformations (CAVMs) from the aspects of nidus detection and angioarchitecture.Methods 20 suspected CAVM patients were enrolled.4D-CTA was performed before digital silhouette angiography (DSA).Location and size of niduses and numbers of feeding arteries and draining veins shown in this two imaging methods were Abserved.Results All patients were diagnosed as CAVMs by 4D-CTA and 1 case was confirmed as arteriovenous fistula by DSA.In this 19 CAVMs,the location and size of nidus and the numbers of feeding arteries and draining veins shown by 4D-CTA were sufficiently accurate when compared to DSA (P ＞ 0.05).Conclusions Non-Invasive 4D-CTA was able to detect CAVMs and display the dynamic blood flow.It can be a useful option in the diagnosis of CAVMs. Key words: Cerebral arteriovenous malformations ; 4D-CTA; DSA; X-ray computed
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