Key result
Dynamic CTA detects ~57% more type I and II endoleaks vs standard CTA after EVAR.
Why the study?
The use of dynamic computed tomography angiography (dCTA) for endoleak detection after endovascular abdominal aortic aneurysm repair is gaining interest, prompting an overview of its current applications in vascular surgery.
Does dynamic computed tomography angiography (dCTA) improve the detection of endoleaks compared to standard CTA in patients after endovascular aneurysm repair?
Does dynamic computed tomography angiography (dCTA) improve the detection of endoleaks compared to standard CTA in patients after endovascular aneurysm repair?
Dynamic computed tomography angiography enhances the detection of type I and type II endoleaks compared to standard CTA following endovascular aneurysm repair.
May warrant integration into post-EVAR surveillance; extends systematic evidence favoring dynamic over standard CTA.
Backgroud: The use of dynamic computed tomography angiography (dCTA) for the detection of endoleaks in patients who underwent endovascular repair of abdominal aortic aneurysms is gaining interest. This study aims to provide an overview of the current applications of dCTA technologies in vascular surgery. Methods: We performed a comprehensive review by searching in the PubMed database and Cochrane Library (last search: 1 November 2024). We included studies considering endoleak investigation after endovascular aneurysm repair (EVAR). We included papers that reported the outcome of applications of dCTA, excluding case reports or very limited case series (≤4). Finally, 14 studies regarding 377 computed tomography angiographies (CTA) were included and evaluated. Results: Persistent perfusion of the aneurysm sac is the most common complication after EVAR. Imaging-based surveillance post-EVAR is essential with the aim of early detection, characterization, and localization of endoleaks to guide therapeutic intervention or follow-up. dCTA detected 36 type I endoleaks versus 16 identified with standard CTA and 138 versus 95 type II endoleaks. Conclusions: The emergence of dCTA offers a promising solution through enhanced temporal resolution, allowing the visualization of real-time flow dynamics within the aneurysmal sac essential to establishing endoleak treatment or post-EVAR follow-up.
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Catasta et al. (2025) conducted a review in Endoleaks after endovascular aneurysm repair (EVAR) (n=377). Dynamic computed tomography angiography (dCTA) vs. Standard CTA was evaluated on Detection of type I and type II endoleaks. Dynamic computed tomography angiography detected 36 type I and 138 type II endoleaks, compared to 16 and 95 respectively with standard CTA, after endovascular aneurysm repair.
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