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      Nuevas tecnologías de imágenes para el diagnóstico y tratamiento de los aneurismas de aorta complejos Translated title: New Imaging Technologies for the Diagnosis and Treatment of Complex Aortic Aneurysms

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          Abstract

          RESUMEN La tecnología en imágenes desempeña un papel fundamental como guía en el tratamiento endovascular del aneurisma de aorta, especialmente en la aorta compleja toracoabdominal. Las salas quirúrgicas combinan imágenes de alta calidad con un entorno estéril y funcional, lo que permite, además de mejores resultados, una reducción del contraste a utilizar y la exposición a la radiación de pacientes y operadores. Esta presentación tiene como objetivo describir el uso actual de dicha tecnología, combinando angiotomografía y tomografía computarizada de haz cónico intraoperatoria, la “fusión”de imágenes y la ecografía intravascular, para guiar procedimientos y así mejorar la tasa de éxito intraoperatorio y reducir la necesidad de reintervenciones. Por otro lado, se describe un procedimiento para crear plantillas personalizadas 3D con las imágenes de alta definición de la anatomía arterial del paciente, que sirven como guías específicas para confeccionar en quirófano endoprótesis fenestradas. Estas plantillas de fenestración personalizadas podrían ampliar el número de pacientes con aneurismas complejos tratados en forma mínimamente invasiva.

          Translated abstract

          ABSTRACT Imaging technology plays a key guiding role in the endovascular treatment of aortic aneurysms, especially in the complex thoracoabdominal aorta. The operating rooms combine high quality imaging with a sterile and functional environment, allowing for better outcomes, a reduction of the contrast agent to be used and of patients’ and operators’ exposure to radiation. The aim of this presentation is to describe the current use of imaging technology, combining intraoperative cone beam computed tomography (CBCT) and computed tomography angiography (CTA), image “fusion” and intravascular ultrasound, to guide the procedures and improve the intraoperative success rate, and to reduce the need for reinterventions. Furthermore, a procedure to create custom 3D templates with high definition images of the patient’s arterial anatomy is described, which serve as specific guides for making fenestrated stent-grafts in the operating room. These custom fenestration templates could increase the number of patients with complex aneurysms treated with a minimally invasive approach.

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          Most cited references15

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          3D Printed Abdominal Aortic Aneurysm Phantom for Image Guided Surgical Planning with a Patient Specific Fenestrated Endovascular Graft System.

          Following new trends in precision medicine, Juxatarenal Abdominal Aortic Aneurysm (JAAA) treatment has been enabled by using patient-specific fenestrated endovascular grafts. The X-ray guided procedure requires precise orientation of multiple modular endografts within the arteries confirmed via radiopaque markers. Patient-specific 3D printed phantoms could familiarize physicians with complex procedures and new devices in a risk-free simulation environment to avoid periprocedural complications and improve training. Using the Vascular Modeling Toolkit (VMTK), 3D Data from a CTA imaging of a patient scheduled for Fenestrated EndoVascular Aortic Repair (FEVAR) was segmented to isolate the aortic lumen, thrombus, and calcifications. A stereolithographic mesh (STL) was generated and then modified in Autodesk MeshMixer for fabrication via a Stratasys Eden 260 printer in a flexible photopolymer to simulate arterial compliance. Fluoroscopic guided simulation of the patient-specific FEVAR procedure was performed by interventionists using all demonstration endografts and accessory devices. Analysis compared treatment strategy between the planned procedure, the simulation procedure, and the patient procedure using a derived scoring scheme.
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            Endoleaks after endovascular aortic aneurysm repair: Improved detection with noise-optimized virtual monoenergetic dual-energy CT

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              Aneurysm Rupture and Mortality During the Waiting Time for a Customised Fenestrated/Branched Stent Graft in Complex Endovascular Aortic Repair.

              Treatment of complex aortic pathologies with customised fenestrated/branched stent grafts (F/BEVAR) is associated with a longer waiting time to the procedure. This study aimed to investigate the prevalence of aneurysm rupture and mortality during the waiting time for a fenestrated/branched stent graft in a single centre.
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                Author and article information

                Journal
                rac
                Revista argentina de cardiología
                Rev. argent. cardiol.
                Sociedad Argentina de Cardiología (Ciudad Autónoma de Buenos Aires, , Argentina )
                1850-3748
                November 2020
                : 88
                : 6
                : 544-549
                Affiliations
                [5] orgnameHospital Alemán orgdiv1Servicio de Radiología Intervencionista
                [3] orgnameHospital Alemán orgdiv1Servicio de Hemodinamia
                [2] orgnameHospital Alemán orgdiv1Servicio de Cirugía Cardiovascular
                [1] orgnameClínica la Sagrada Familia orgdiv1Servicio de Cirugía Vascular
                [4] orgnameClínica La Sagrada Familia orgdiv1Servicio de Diagnóstico por Imágenes
                Article
                S1850-37482020000600544 S1850-3748(20)08800600544
                10.7775/rac.es.v88.i6.19346
                0439e58b-97a2-42f5-b2b9-5e6f76085b60

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 15, Pages: 6
                Product

                SciELO Argentina

                Categories
                Artículos especiales

                CBCT,Fusión de imágenes,Imágenes intraoperatorias,Procedimientos endovasculares,Aneurisma de la aorta abdominal,Image Fusion,Intraoperative Images,Endovascular Procedures,Aortic Aneurysm, Abdominal

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