3D parametric surface planar topological guide plate to create a PMSG for the emergency endovascular repair of an aortic arch aneurysm

Abstract

A 69-year-old male patient was admitted by 10 h severe chest pain. Computed tomography angiography showed a 7.3 cm aneurysm of the aortic arch. We used a three-dimensional parametric surface planar topological guide plate to prepare a guide plate in 40 min. The plate was used to localize the opening of the aortic arch branches on table to create a physician-modified stent graft (PMSG). The aneurysm was successfully repaired by the triple inner branched PMSG, with no endoleak and all the branched arteries patency in follow-up. This technique could not only make accurate fenestration but also meet the need for emergency surgery.

3D Printing‐guided endovascular repair of enormous twisted thoracoabdominal aortic aneurysm with branch stenosis and occlusion

“…But it is unable to simulate the SGs deformation in twisted aorta. 4 3D printing technology combined with mechanical analysis can simulate the deformation of SGs in the aorta and allow the accurate placement of fenestrations to achieve precision individualized therapy. 5 At the same time, in cases with a complex anatomy of visceral arteries, localization of the fenestrations can be repeated several times to optimize the surgical plan according to the intraoperative situation.…”

“…The method is suitable for emergency surgery for shorter preparation time. But it is unable to simulate the SGs deformation in twisted aorta 4 . 3D printing technology combined with mechanical analysis can simulate the deformation of SGs in the aorta and allow the accurate placement of fenestrations to achieve precision individualized therapy 5 .…”

The Utility of Three-Dimensional Printing in Physician-Modified Stent Grafts for Aortic Lesions Repair

“…Advanced imaging technologies such as computed tomography (CT) scans and magnetic resonance imaging (MRI), coupled with 3D software tools such as SpaceClaim (ANSYS, Inc., Canonsburg, PA, USA), enable highly accurate design of anatomically correct AAA models fabricated from silicone-like materials, facilitating fenestrated endovascular aortic repair (FEVAR) [15]. These models serve as a platform for conducting parametric studies, facilitating a comprehensive analysis of hemodynamic parameters [16]. Moreover, they play a crucial role in the formulation of physician-modified stent grafts (PMSGs), customized to address the unique anatomical considerations of individual patients [17].…”