Three dimensional printed molds to obtain silicone hearts with congenital defects for pediatric Heart-Surgeon training

Article Article scientifique Article Three dimensional printed molds to obtain silicone hearts with congenital defects for pediatric Heart-Surgeon training eng 2024-03-05 2024-03-05 author Frei Mélanie Radiology clinics, Diagnostic department, Geneva university hospital and University of Geneva, Switzerland.,Cardiac Surgery, Geneva university hospital and University of Geneva, Switzerland. 671976 author Reymond Philippe 0000-0002-0772-6862 Charles Hahn Hemodynamic Propulsion Laboratory, Medical Faculty, University of Geneva, 1211, Geneva. 729770 Département de radiologie et informatique médicale (RADIO) author Wacker Bou Puigdefabregas Julie Caroline Department of Women, Children and Adolescents, Paediatric Specialties Service, Geneva university hospital and University of Geneva, Switzerland. 540977 author Van Steenberghe Mathieu Charles Hahn Hemodynamic Propulsion Laboratory, Medical Faculty, University of Geneva, 1211, Geneva. 935628 Département de chirurgie (CHIRU) author Beghetti Maurice Department of Women, Children and Adolescents, Paediatric Specialties Service, Geneva university hospital and University of Geneva, Switzerland. 31865 Département de Pédiatrie, Gynécologie et Obstétrique (PETRI) author Sologashvili Tornike Cardiac Surgery, Geneva university hospital and University of Geneva, Switzerland. 807807 Département de chirurgie (CHIRU) author Vallée Jean-Paul 0000-0001-7546-2013 Radiology clinics, Diagnostic department, Geneva university hospital and University of Geneva, Switzerland. 29185 Département de radiologie et informatique médicale (RADIO) ezae079 10.1093/ejcts/ezae079 38445719 1010-7940 https://academic.oup.com/ejcts/article/65/3/ezae079/7623089 Objectives: Many types of congenital heart disease are amenable to surgical repair or palliation. The procedures are often challenging and require specific surgical training, with limited real-life exposure and often costly simulation options. Our objective was to create realistic and affordable 3D simulation models of the heart and vessels to improve training. Methods: We created molded vessel models using several materials, in order to identify the material that best replicated human vascular tissue. This material was then used to make more vessels to train residents in cannulation procedures. Magnetic resonance imaging views of a 23 months-old patient with double-outlet right ventricle were segmented using free open-source software. Re-usable molds produced by 3D printing served to create a silicone model of the heart, with the same material as the vessels, which was used by a heart surgeon to simulate a Rastelli procedure. Results: The best material was a soft elastic silicone (Shore A hardness 8). Training on the vessel models decreased the residents' procedural time and improved their grades on a performance rating scale. The surgeon evaluated the molded heart model as realistic and was able to perform the Rastelli procedure on it. Even if the valves were poorly represented, it was found to be useful for preintervention training. Conclusions: By using free segmentation software, a relatively low-cost silicone, and a technique based on re-usable molds, the cost of obtaining heart models suitable for training in congenital-heart-defect surgery can be substantially decreased. 3D modeling 3D printing 3D segmentation Congenital heart disease Silicone model Surgical simulation Dewey 616.0757 Dewey 617 Dewey 618 57 Département de chirurgie 222 62 Département de radiologie et informatique médicale 227 58 Département de pédiatrie, gynécologie et obstétrique 223 false 1290 Recherche cardiovasculaire et de propulsion hémodynamique 1009 179 L'hypertension pulmonaire (pédiatrie) 228 286 Imagerie cardiaque fonctionnelle 541 European journal of cardio-thoracic surgery 65 3 b8e1902e-12b1-476e-88d0-28220809d0e4 Article (Published version) Public ezae079.pdf 2744741 application/pdf CC BY-4.0 7b60ac4f9a739ecd8bb4a12331b0f85318d03f3976f10e477dff8125ad57f6e7 a04b6e0b-508a-4cdb-8d61-2b1802cf52c6 Article (Accepted version) Public Article-scientifique-from-unpaywall.pdf 1912172 application/pdf CC BY b270d1b014bf9425339615614b6138991579bbd770516eeac6bbd7a396cea9fd 8b213e90-6abf-463c-951e-23ac60f7ea67 Supplemental data Public ACAT page 1 (1).pdf 126409 application/pdf 551566a4a2bd1622a7075de3d6ce6b74666a1b5fd28467cd03a3173bdc41cab0 963e21ff-cb3e-4cd6-a751-ba97b685b33c Supplemental data Public ACAT page 2.pdf 121792 application/pdf f0180d71cc7b55d4991bdf2b17cce86c1478add8a6367d70e40dd4c0337db710 openAccess Faculté de médecine / Section de médecine clinique / Département de chirurgie Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale Faculté de médecine / Section de médecine clinique / Département de pédiatrie, gynécologie et obstétrique

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Three dimensional printed molds to obtain silicone hearts with congenital defects for pediatric Heart-Surgeon training	European journal of cardio-thoracic surgery			2024	109	283

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Frei, Mélanie