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Item type:Publication, Access status: with files , Middle meningeal artery model for training endovascular treatment of chronic subdural hematomas in interventional neuroradiology(American Society of Mechanical Engineers (ASME), 2025-03-28); ; ; ; Technical progress and the development of smaller treatment instruments allow neurointerventional procedures to be used to treat diseases involving small vessels (< 2 mm). One example is the subdural hematoma (SDH), which can be treated by embolizing the middle meningeal artery (MMA) to cut off blood supply to SDH. The procedure was first used in 2018, following efficacy and safety studies. The embolization is technically very challenging and requires extensive training of the physicians. This work presents the development of an MMA model for endovascular training simulations of SDH with original instruments and particle embolization for integration into the existing neurointerventional training simulator Hamburg ANatomical NEurointerventional Simulator (HANNES). The development and testing were carried out by an interdisciplinary team of physicians and engineers. The aim of this work is to avoid the disadvantages of animal experiments, such as ethical aspects, anatomical differences to human vessel architecture, and long-term availability. First, a printing study of the MMA model was carried out to determine suitable processes and materials. Subsequently, suitable models were tested by experienced neurointerventional physicians in a realistic treatment setting, whereby they assessed 4 out of 20 models as sufficiently good. Relevant criteria were, among others, the flowrate, probing ability, elasticity, haptics, and geometric mapping. Based on these findings, an embolization module was developed to capture particles during training, which was evaluated as a moderate basic model for SDH embolization training. In conclusion, the novel MMA model with embolization module integrated in the simulator HANNES enables an innovative state-of-the-art neurointerventional training opportunity of physicians.Publicationtype: Journal Article19 19 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , HANNES: A Modular Neurointerventional Training Model(American Society of Mechanical Engineers (ASME), 2024-11-21); ; ; ; This work introduces version 2.0 of the Hamburg ANatomical NEurointerventional Simulator (HANNES): a novel modular neurointerventional simulator designed to provide a realistic platform for simulating various neurovascular pathologies and their endovascular therapies. Collaboratively developed by physicians and engineers, the neurointerventional simulator is designed with a modular product architecture combining standardized and variant modules to represent different training scenarios. The additively manufactured patient-based and patient-specific blood vessel tree consists of up to 13 individual components, including standardized features and interfaces for ease of connection. Patient-specific vessel models derived from medical imaging data allow customization and complexity adjustment. HANNES supports diverse neurointerventional training scenarios, including various modalities of aneurysm embolization, internal carotid artery (ICA)-stenosis, and thrombotic vessel occlusions, which can be treated through a transradial or transfemoral approach. The use and benefits of the model were evaluated with a group of trainees, who provided positive feedback, confirming the model's practicality and effectiveness in enhancing neurointerventional technical skills. In conclusion, HANNES represents a significant advancement in neurointerventional training, addressing the limitations of traditional training methods by simulating diverse disease patterns, enhancing medical staff's skills, and facilitating product testing.Publicationtype: Journal Article85