Requirement analysis in medical phantom development: a survey tool approach with an illustrative example of a multimodal deformable pelvic phantom

IntroductionMedical phantoms play a crucial role in medical imaging and therapy. However, the successful development of these phantoms heavily relies on a comprehensive understanding of the requirements specific to each application.MethodsIn this paper, we emphasize the significance of requirement analysis in medical phantom development and develop a novel approach for gathering and classifying requirements specific for phantom development.ResultsThe implemented survey tool is designed to accommodate the diverse needs of stakeholders involved in phantom development, including medical staff, physicists, engineers, and product developers. To validate the effectiveness of the approach, we conduct the development of a multimodal deformable pelvic phantom, providing insights into the process and its applicability.DiscussionThe results demonstrate the utility and reliability of our approach in systematically gathering, categorizing, and prioritizing requirements, thus facilitating the streamlined and efficient development of medical phantoms

Influence of additive manufacturing parameters on patient-specific small vessel models based on the neurointerventional simulator HANNES

With the increasing technical development, neuroradiological treatment of diseases in small vessels (diameter of < 2 mm), like arteriovenous malformations, is becoming possible. Endovascular interventions are technically very difficult and require learning and practice in the use of the instruments. There is a great need for in-vitro training simulators to avoid inappropriate animal experiments. This article describes the analysis of influencing parameters additively manufactured patient specific small vessel models based on the existing neurointerventional simulator HANNES and an established workflow for the fabrication of vessel models. Many printing parameters during the design or fabrication of the model may have an influence on the small complex hollow structures. In this article, a selection of parameters of the stereolithography process and their possible influence are explained in more detail. Subsequently, the findings should be investigated in a printing study for a more detailed analysis of the parameters.Federal Ministry of Education and Research (BMBF