Fig. 1

The preoperative image assessment and intraoperative digital subtraction angiogram (DAS) of type I cases. Image (a), (b), and (c) show the preoperative assessment and intraoperative DAS of case 4; (d), (e), and (f) show case 10; (g), (h), and (i) show case 3; (j) shows case 9. The CTA (a), DSA (d), (g), and (j) show the type I dissecting aneurysm and type I aneurysms preoperatively; DSA (b), (c), (e), and (f) show the ECAA treated with endovascular treatment has disappeared and target artery patency without endoleak. DSA (h) and (i) show the ECAA treated with hybrid procedure. The yellow arrows point out the dissecting aneurysms. Red arrows point out stents