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3-dimensional printing of models to create custom-made devices for coil embolization of an anastomotic leak after aortic arch replacement. | LitMetric

AI Article Synopsis

Article Abstract

Purpose: The objective of this study was to show the use of 3-dimensional printing models to fabricate a custom-made occluder for device embolization of an anastomotic leak after replacement of the ascending aorta and the aortic arch in a human immunodeficiency virus (HIV)-infected patient.

Description: We present a 50-year-old HIV-infected patient who underwent ascending aorta and aortic arch replacement for a type A dissection, and who had an aortic arch pseudoaneurysm (sized 5 x 5 x 4 cm) with a slit-shaped entrance hole located anteriorly to the implanted supra-aortic vessels. The patient's 128-slice computed tomography data were visualized and reconstructed. Afterward we fabricated a life-like replica of the complex pathology of the ascending aorta and the aortic arch using a rapid prototyping machine. After careful examination of the model, we fabricated a custom-made occluder device for interventional closure of the leakage.

Evaluation: Using data derived from 128-slid computed tomography linked to proprietary software, we were able to create models of the ascending aorta, the aortic arch end, especially the pseudoaneurysm with its slit-shaped opening between the aortic lumen and the aneurysm. This was very helpful to build a perfectly fitting custom-made occluder device to plan and simulate the interventional closure. Moreover, the models were helpful for intra-interventional orientation.

Conclusions: The stereolithographic replicas were extremely useful for choosing the treatment option and for planning and simulating the occlusion of the pseudoaneurysm. Furthermore, the models were necessary for our engineers who were building the custom-made occluder device.

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Source
http://dx.doi.org/10.1016/j.athoracsur.2009.03.014DOI Listing

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