The New Zealand rabbit elastase-induced arterial aneurysm of the right common carotid artery remains a widely used model for assessing the effectiveness and safety of new neuroendovascular devices.1 This model offers a simple and reliable platform for pre-clinical investigations, crucial for comprehending the biological processes underlying aneurysm healing after endovascular treatment.2 Notably, the induced aneurysm exhibits morphological, hemodynamic, and histological characteristics similar to human intracranial aneurysms. The creation of the aneurysm is performed using open and endovascular techniques. Each step of the procedure requires a meticulous and controlled gesture to ensure reproducibility of the aneurysm and minimize animal misuse. In video 1 we present a step-by-step procedural guide for aneurysm creation and follow-up. We hope this resource will help in promoting this model and provide useful guidance for researchers in the field.neurintsurg;jnis-2024-021912v1/V1F1V1Video 1Surgical procedure of creating elastase-induced aneurysms in rabbits.
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http://dx.doi.org/10.1136/jnis-2024-021912 | DOI Listing |
J Neurointerv Surg
November 2024
Neurosurgery, Kyoto University Graduate School of Medicine Faculty of Medicine, Kyoto, Japan.
Proc SPIE Int Soc Opt Eng
February 2024
University of Buffalo, Buffalo, New York, USA, Canon Research Stroke and Vascular Center, Buffalo, New York, USA.
High Speed Angiography (HSA) at 1000 fps is a novel interventional-imaging technique that was previously used to visualize changes in vascular flow details before and after flow-diverter treatment of cerebral aneurysms in in-vitro 3D printed models. In this first pre-clinical work, we demonstrate the use of the HSA technique during flow-diverter treatment of in-vivo rabbit aneurysm models. An aneurysm was created in the right common carotid artery of each of two rabbits using previously published elastase aneurysm-creation methods.
View Article and Find Full Text PDFAnn Biomed Eng
November 2024
Laboratoire de Tribologie et Dynamique des Systèmes, UMR CNRS 5513, École Centrale de Lyon, 69130, Ecully, France.
Ann Biomed Eng
October 2024
Laboratoire de Tribologie et Dynamique des Systèmes, UMR CNRS 5513, École Centrale de Lyon, 69130, Ecully, France.
Purpose: This study addresses the critical issue of evaluating the risk of rupture of unruptured intracranial aneurysms (UIAs) through the assessment of the mechanical properties of the aneurysm wall. To achieve this, an original approach based on the development of an in vivo deformation device prototype (DDP) of the vascular wall is proposed. The DDP operates by pulsing a physiological fluid onto the vascular wall and measuring the resulting deformation using spectral photon counting computed tomography (SPCCT) imaging.
View Article and Find Full Text PDFJ Cardiovasc Transl Res
October 2024
Department of Biomedical Engineering, Michigan Technological University, 339 H-STEM Complex, 1400 Townsend Drive, Houghton, MI, 49931, USA.
This paper presents a two-stenosis aorta model mimicking vortical flow in vascular aneurysms. More specifically, we propose to virtually induce two adjacent stenoses in the abdominal aorta to develop various vortical flow zones post stenoses. Computational fluid dynamics (CFD) simulations were conducted for the virtual two-stenosis model based on physiological and anatomical data (i.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!