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Anania G, Campagnaro A, Chiozza M, Randolph J, Resta G, Marino S, Pedon S, Agrusa A, Cuccurullo D, Cirocchi R. A SICE (Società Italiana di Chirurgia Endoscopica e Nuove Tecnologie) observational prospective multicenter study on anatomical variants of the superior mesenteric artery: intraoperative analysis during laparoscopic right hemicolectomy-CoDIG 2 database (ColonDx Italian Group). Updates Surg 2024; 76:933-941. [PMID: 38526696 PMCID: PMC11129964 DOI: 10.1007/s13304-024-01787-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/12/2024] [Indexed: 03/27/2024]
Abstract
Colorectal cancer, the third most common cancer worldwide, affects 40-45% of patients on the right side. Surgery, especially minimally invasive methods such as laparoscopic and robotic procedures, is the preferred treatment. However, these techniques present technical complications. The anatomical complexity and variations in vessel branching patterns pose challenges, particularly for less experienced surgeons. The CoDIG 2 is a nationwide observational study involving 76 specialized Italian general surgery departments focused on colorectal surgery. The centres were directed to maintain their standard surgical and clinical practices. The aim of this study was to analyse the intraoperative vascular anatomy of Italian patients who underwent laparoscopic right colectomy and explore the ligature techniques used by Italian surgeons. Surgeons reported information about vascularization of the right colon for 616 patients and about surgical anatomy of RCA for 368 patients. Fifty-three patients (10.8%) showed no RCA intraoperatively. The right colic artery (RCA) was categorized according to the Yada classification (types 1-4) during evaluation, and intraoperative assessments revealed that Yada type 1 was the most common type (55.2%), while radiologic evaluations revealed a higher prevalence of type 2. Furthermore, compared with the superior mesenteric vein (SMV), the RCA is more often located anteriorly according to intraoperative and contrast-enhanced CT examination; 59.9% were found in the anterior position during intraoperative examination, while 40.1% were found in the same position on preoperative contrast-enhanced CT. Vascularization of the right colon, including missing branches, additional branches, shared trunks, and retro-superior courses of the mesenteric vein, exhibited notable variations. To understand vascular variations, a preoperative radiological study is necessary; although there was no concordance between the intraoperative and radiological evaluations, this is a limitation of preinterventional radiological evaluation (PII) because it is always needed for oncological staging. This approach is especially critical for inexperienced surgeons to avoid potential complications, such as problematic bleeding.
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Affiliation(s)
- G Anania
- Unit of General Surgery, S. Anna University Hospital of Ferrara, Via Aldo Moro 8, Cona, FE, Italy
- Department of Medical Science, University of Ferrara, Via Fossato di Mortara 64/B, 44121, Ferrara, FE, Italy
| | - A Campagnaro
- Unit of General Surgery, S. Anna University Hospital of Ferrara, Via Aldo Moro 8, Cona, FE, Italy.
- Department of Medical Science, University of Ferrara, Via Fossato di Mortara 64/B, 44121, Ferrara, FE, Italy.
| | - M Chiozza
- Unit of General Surgery, S. Anna University Hospital of Ferrara, Via Aldo Moro 8, Cona, FE, Italy
- Department of Medical Science, University of Ferrara, Via Fossato di Mortara 64/B, 44121, Ferrara, FE, Italy
| | - J Randolph
- Georgia Baptist College of Nursing, Mercer University, Atlanta, GA, 30341, USA
| | - G Resta
- Unit of General Surgery, S. Anna University Hospital of Ferrara, Via Aldo Moro 8, Cona, FE, Italy
| | - S Marino
- Unit of General Surgery, S. Anna University Hospital of Ferrara, Via Aldo Moro 8, Cona, FE, Italy
| | - S Pedon
- Unit of General Surgery, S. Anna University Hospital of Ferrara, Via Aldo Moro 8, Cona, FE, Italy
- Department of Medical Science, University of Ferrara, Via Fossato di Mortara 64/B, 44121, Ferrara, FE, Italy
| | - A Agrusa
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, PA, Italy
| | - D Cuccurullo
- Division of Laparoscopic and Robotic Surgery Unit, A.O.R.N. Colli Monaldi Hospital, Napoli, NA, Italy
| | - R Cirocchi
- Department of Medicine and Surgery, University of Perugia, Piazza Università 1, 06123, Perugia, PG, Italy
- Division of Digestive and Emergency Surgery, Santa Maria Hospital, Via Tristano di Joannuccio 05100, Terni, TR, Italy
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Chinnakorn A, Nuansing W, Bodaghi M, Rolfe B, Zolfagharian A. Recent progress of 4D printing in cancer therapeutics studies. SLAS Technol 2023; 28:127-141. [PMID: 36804175 DOI: 10.1016/j.slast.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023]
Abstract
Cancer is a critical cause of global human death. Not only are complex approaches to cancer prognosis, accurate diagnosis, and efficient therapeutics concerned, but post-treatments like postsurgical or chemotherapeutical effects are also followed up. The four-dimensional (4D) printing technique has gained attention for its potential applications in cancer therapeutics. It is the next generation of the three-dimensional (3D) printing technique, which facilitates the advanced fabrication of dynamic constructs like programmable shapes, controllable locomotion, and on-demand functions. As is well-known, it is still in the initial stage of cancer applications and requires the insight study of 4D printing. Herein, we present the first effort to report on 4D printing technology in cancer therapeutics. This review will illustrate the mechanisms used to induce the dynamic constructs of 4D printing in cancer management. The recent potential applications of 4D printing in cancer therapeutics will be further detailed, and future perspectives and conclusions will finally be proposed.
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Affiliation(s)
- Atchara Chinnakorn
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Wiwat Nuansing
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Mahdi Bodaghi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, United Kingdom
| | - Bernard Rolfe
- School of Engineering, Deakin University, Geelong, Victoria 3216, Australia
| | - Ali Zolfagharian
- School of Engineering, Deakin University, Geelong, Victoria 3216, Australia.
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To G, Hawke JA, Larkins K, Burke G, Costello DM, Warrier S, Mohan H, Heriot A. A systematic review of the application of 3D-printed models to colorectal surgical training. Tech Coloproctol 2023; 27:257-270. [PMID: 36738361 DOI: 10.1007/s10151-023-02757-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/22/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND The aim of this review was to explore the role of three-dimensional (3D) printing in colorectal surgical education and procedural simulation, and to assess the effectiveness of 3D-printed models in anatomic and operative education in colorectal surgery. METHODS A systematic review of the literature was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to identify relevant publications relating to the use of 3D-printed models in colorectal surgery in an educational context. The search encompassed OVID Medline, Web of Science and EMBASE including papers in English published from 1 January 1995 to 1 January 2023. A total of 1018 publications were screened, and 5 met the criteria for inclusion in this review. RESULTS Four distinct 3D models were described across five studies. Two models demonstrated objective benefits in the use of 3D-printed models in anatomical education in academic outcomes at all levels of learner medical experience and were well accepted by learners. One model utilised for preoperative visualisation demonstrated improved operative outcomes in complete mesocolic excision compared with preoperative imaging review, with a 22.1% reduction in operative time (p < 0.001), 9.2% reduction in surgical duration (p = 0.035) and 37.3% reduction in intraoperative bleeding volume amongst novice surgeons (p < 0.01). Technical simulation has been demonstrated in a feasibility context in one model but remains limited in scope and application on account of the characteristics of available printing materials. CONCLUSIONS 3D printing is well accepted and effective for anatomic education and preoperative procedural planning amongst colorectal surgeons, trainees and medical students but remains a technology in the early stages of its possible application. Technological advancements are required to improve the tissue realism of 3D-printed organ models to achieve greater fidelity and provide realistic colorectal surgical simulations.
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Affiliation(s)
- Gloria To
- The University of Melbourne, Parkville, VIC, Australia
| | - Justin A Hawke
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Victorian Comprehensive Cancer Centre, Melbourne, VIC, Australia.
| | - Kirsten Larkins
- The University of Melbourne, Parkville, VIC, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Victorian Comprehensive Cancer Centre, Melbourne, VIC, Australia
| | - Grace Burke
- International Medical Robotics Academy, North Melbourne, VIC, Australia
| | | | - Satish Warrier
- The University of Melbourne, Parkville, VIC, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Victorian Comprehensive Cancer Centre, Melbourne, VIC, Australia
- International Medical Robotics Academy, North Melbourne, VIC, Australia
| | - Helen Mohan
- The University of Melbourne, Parkville, VIC, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Victorian Comprehensive Cancer Centre, Melbourne, VIC, Australia
| | - Alexander Heriot
- The University of Melbourne, Parkville, VIC, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Victorian Comprehensive Cancer Centre, Melbourne, VIC, Australia
- International Medical Robotics Academy, North Melbourne, VIC, Australia
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Entezami P, Spurgas MP, O'Brien MW, Newman LC, Adamo MA. Utility of 3-dimensionally printed models for parent education in pediatric plagiocephaly. PEC INNOVATION 2022; 1:100077. [PMID: 37213734 PMCID: PMC10194339 DOI: 10.1016/j.pecinn.2022.100077] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 08/11/2022] [Accepted: 08/18/2022] [Indexed: 05/23/2023]
Abstract
Objectives Demonstrate the benefits of using 3D printed skull models when counseling families regarding disorders of the cranial vault (namely plagiocephaly and craniosynostosis), as traditional imaging review and discussion is often insufficient. Methods 3D printed skull models of a patient with plagiocephaly were used during clinic appointments to aid in the counseling of parents. Surveys were distributed following the appointment to evaluate the utility of these models during the discussion. Results Fifty surveys were distributed (with a 98% response rate). 3D models were both empirically and anecdotally helpful for parents in understanding their child's diagnosis. Conclusion Advances in 3D printing technology and software have made producing models more accessible. Incorporating physical, disorder-specific models into our discussions has led to improvements in our ability to communicate with our patients and their families. Innovation Disorders of the cranial can be challenging to describe to the parents and guardians of affected children; using 3D printed models is a useful adjunct in patient-centered discussions. The subject response to the use of these emerging technologies in this setting suggests a major role for 3D models in patient education and counseling for cranial vault disorders.
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Affiliation(s)
- Pouya Entezami
- Corresponding author at: Albany Medical Center, 47 New Scotland Ave MC-10, Albany, NY 12208, , United States of America.
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Three-Dimensional (3D) Printing in Cancer Therapy and Diagnostics: Current Status and Future Perspectives. Pharmaceuticals (Basel) 2022; 15:ph15060678. [PMID: 35745597 PMCID: PMC9229198 DOI: 10.3390/ph15060678] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022] Open
Abstract
Three-dimensional (3D) printing is a technique where the products are printed layer-by-layer via a series of cross-sectional slices with the exact deposition of different cell types and biomaterials based on computer-aided design software. Three-dimensional printing can be divided into several approaches, such as extrusion-based printing, laser-induced forward transfer-based printing systems, and so on. Bio-ink is a crucial tool necessary for the fabrication of the 3D construct of living tissue in order to mimic the native tissue/cells using 3D printing technology. The formation of 3D software helps in the development of novel drug delivery systems with drug screening potential, as well as 3D constructs of tumor models. Additionally, several complex structures of inner tissues like stroma and channels of different sizes are printed through 3D printing techniques. Three-dimensional printing technology could also be used to develop therapy training simulators for educational purposes so that learners can practice complex surgical procedures. The fabrication of implantable medical devices using 3D printing technology with less risk of infections is receiving increased attention recently. A Cancer-on-a-chip is a microfluidic device that recreates tumor physiology and allows for a continuous supply of nutrients or therapeutic compounds. In this review, based on the recent literature, we have discussed various printing methods for 3D printing and types of bio-inks, and provided information on how 3D printing plays a crucial role in cancer management.
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Cornejo J, Cornejo-Aguilar JA, Vargas M, Helguero CG, Milanezi de Andrade R, Torres-Montoya S, Asensio-Salazar J, Rivero Calle A, Martínez Santos J, Damon A, Quiñones-Hinojosa A, Quintero-Consuegra MD, Umaña JP, Gallo-Bernal S, Briceño M, Tripodi P, Sebastian R, Perales-Villarroel P, De la Cruz-Ku G, Mckenzie T, Arruarana VS, Ji J, Zuluaga L, Haehn DA, Paoli A, Villa JC, Martinez R, Gonzalez C, Grossmann RJ, Escalona G, Cinelli I, Russomano T. Anatomical Engineering and 3D Printing for Surgery and Medical Devices: International Review and Future Exponential Innovations. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6797745. [PMID: 35372574 PMCID: PMC8970887 DOI: 10.1155/2022/6797745] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/16/2022] [Accepted: 02/24/2022] [Indexed: 12/26/2022]
Abstract
Three-dimensional printing (3DP) has recently gained importance in the medical industry, especially in surgical specialties. It uses different techniques and materials based on patients' needs, which allows bioprofessionals to design and develop unique pieces using medical imaging provided by computed tomography (CT) and magnetic resonance imaging (MRI). Therefore, the Department of Biology and Medicine and the Department of Physics and Engineering, at the Bioastronautics and Space Mechatronics Research Group, have managed and supervised an international cooperation study, in order to present a general review of the innovative surgical applications, focused on anatomical systems, such as the nervous and craniofacial system, cardiovascular system, digestive system, genitourinary system, and musculoskeletal system. Finally, the integration with augmented, mixed, virtual reality is analyzed to show the advantages of personalized treatments, taking into account the improvements for preoperative, intraoperative planning, and medical training. Also, this article explores the creation of devices and tools for space surgery to get better outcomes under changing gravity conditions.
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Affiliation(s)
- José Cornejo
- Facultad de Ingeniería, Universidad San Ignacio de Loyola, La Molina, Lima 15024, Peru
- Department of Medicine and Biology & Department of Physics and Engineering, Bioastronautics and Space Mechatronics Research Group, Lima 15024, Peru
| | | | | | | | - Rafhael Milanezi de Andrade
- Robotics and Biomechanics Laboratory, Department of Mechanical Engineering, Universidade Federal do Espírito Santo, Brazil
| | | | | | - Alvaro Rivero Calle
- Department of Oral and Maxillofacial Surgery, Hospital 12 de Octubre, Madrid, Spain
| | - Jaime Martínez Santos
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | - Aaron Damon
- Department of Neurosurgery, Mayo Clinic, FL, USA
| | | | | | - Juan Pablo Umaña
- Cardiovascular Surgery, Instituto de Cardiología-Fundación Cardioinfantil, Universidad del Rosario, Bogotá DC, Colombia
| | | | - Manolo Briceño
- Villamedic Group, Lima, Peru
- Clínica Internacional, Lima, Peru
| | | | - Raul Sebastian
- Department of Surgery, Northwest Hospital, Randallstown, MD, USA
| | | | - Gabriel De la Cruz-Ku
- Universidad Científica del Sur, Lima, Peru
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | | | | | - Jiakai Ji
- Obstetrics and Gynecology, Lincoln Medical and Mental Health Center, Bronx, NY, USA
| | - Laura Zuluaga
- Department of Urology, Fundación Santa Fe de Bogotá, Colombia
| | | | - Albit Paoli
- Howard University Hospital, Washington, DC, USA
| | | | | | - Cristians Gonzalez
- Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
- Institut of Image-Guided Surgery (IHU-Strasbourg), Strasbourg, France
| | | | - Gabriel Escalona
- Experimental Surgery and Simulation Center, Department of Digestive Surgery, Catholic University of Chile, Santiago, Chile
| | - Ilaria Cinelli
- Aerospace Human Factors Association, Aerospace Medical Association, VA, USA
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Pavan Kalyan BG, Kumar L. 3D Printing: Applications in Tissue Engineering, Medical Devices, and Drug Delivery. AAPS PharmSciTech 2022; 23:92. [PMID: 35301602 PMCID: PMC8929713 DOI: 10.1208/s12249-022-02242-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 02/25/2022] [Indexed: 01/01/2023] Open
Abstract
The gemstone of 3-dimensional (3D) printing shines up from the pyramid of additive manufacturing. Three-dimensional bioprinting technology has been predicted to be a game-changing breakthrough in the pharmaceutical industry since the last decade. It is fast evolving and finds its seats in a variety of domains, including aviation, defense, automobiles, replacement components, architecture, movies, musical instruments, forensic, dentistry, audiology, prosthetics, surgery, food, and fashion industry. In recent years, this miraculous manufacturing technology has become increasingly relevant for pharmaceutical purposes. Computer-aided drug (CAD) model will be developed by computer software and fed into bioprinters. Based on material inputs, the printers will recognize and produce the model scaffold. Techniques including stereolithography, selective laser sintering, selective laser melting, material extrusion, material jetting, inkjet-based, fused deposition modelling, binder deposition, and bioprinting expedite the printing process. Distinct advantages are rapid prototyping, flexible design, print on demand, light and strong parts, fast and cost-effective, and environment friendly. The present review gives a brief description of the conceptional 3-dimensional printing, followed by various techniques involved. A short note was explained about the fabricating materials in the pharmaceutical sector. The beam of light is thrown on the various applications in the pharma and medical arena.
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Traynor G, Shearn AIU, Milano EG, Ordonez MV, Velasco Forte MN, Caputo M, Schievano S, Mustard H, Wray J, Biglino G. The use of 3D-printed models in patient communication: a scoping review. JOURNAL OF 3D PRINTING IN MEDICINE 2022; 6:13-23. [PMID: 35211330 PMCID: PMC8852361 DOI: 10.2217/3dp-2021-0021] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 12/07/2021] [Indexed: 11/21/2022]
Abstract
3D models have been used as an asset in many clinical applications and a variety of disciplines, and yet the available literature studying the use of 3D models in communication is limited. This scoping review has been conducted to draw conclusions on the current evidence and learn from previous studies, using this knowledge to inform future work. Our search strategy revealed 269 papers, 19 of which were selected for final inclusion and analysis. When assessing the use of 3D models in doctor-patient communication, there is a need for larger studies and studies including a long-term follow up. Furthermore, there are forms of communication that are yet to be researched and provide a niche that may be beneficial to explore.
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Affiliation(s)
- Gemma Traynor
- Bristol Medical School, University of Bristol, Bristol, BS8 1UD, UK
| | - Andrew IU Shearn
- Bristol Medical School, University of Bristol, Bristol, BS8 1UD, UK
| | - Elena G Milano
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, WC1N 3JH, UK
| | | | | | - Massimo Caputo
- Bristol Medical School, University of Bristol, Bristol, BS8 1UD, UK
- University Hospitals Bristol & Weston, NHS Foundation Trust, Bristol, BS1 3NU, UK
| | - Silvia Schievano
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, WC1N 3JH, UK
- Institute of Cardiovascular Science, University College London, London, WC1E 6DD, UK
| | - Hannah Mustard
- University Hospitals Bristol & Weston, NHS Foundation Trust, Bristol, BS1 3NU, UK
| | - Jo Wray
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, WC1N 3JH, UK
| | - Giovanni Biglino
- Bristol Medical School, University of Bristol, Bristol, BS8 1UD, UK
- National Heart & Lung Institute, Imperial College London, London, SW3 6LY, UK
- Author for correspondence: Tel.: +44 117 342 3287;
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Roeth AA, Garretson I, Beltz M, Herbold T, Schulze-Hagen M, Quaisser S, Georgens A, Reith D, Slabu I, Klink CD, Neumann UP, Linke BS. 3D-Printed Replica and Porcine Explants for Pre-Clinical Optimization of Endoscopic Tumor Treatment by Magnetic Targeting. Cancers (Basel) 2021; 13:cancers13215496. [PMID: 34771659 PMCID: PMC8583102 DOI: 10.3390/cancers13215496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/19/2021] [Accepted: 10/28/2021] [Indexed: 12/19/2022] Open
Abstract
Simple Summary Animal models are often needed in cancer research but some research questions may be answered with other models, e.g., 3D replicas of patient-specific data, as these mirror the anatomy in more detail. We, therefore, developed a simple eight-step process to fabricate a 3D replica from computer tomography (CT) data using solely open access software and described the method in detail. For evaluation, we performed experiments regarding endoscopic tumor treatment with magnetic nanoparticles by magnetic hyperthermia and local drug release. For this, the magnetic nanoparticles need to be accumulated at the tumor site via a magnetic field trap. Using the developed eight-step process, we printed a replica of a locally advanced pancreatic cancer and used it to find the best position for the magnetic field trap. In addition, we described a method to hold these magnetic field traps stably in place. The results are highly important for the development of endoscopic tumor treatment with magnetic nanoparticles as the handling and the stable positioning of the magnetic field trap at the stomach wall in close proximity to the pancreatic tumor could be defined and practiced. Finally, the detailed description of the workflow and use of open access software allows for a wide range of possible uses. Abstract Background: Animal models have limitations in cancer research, especially regarding anatomy-specific questions. An example is the exact endoscopic placement of magnetic field traps for the targeting of therapeutic nanoparticles. Three-dimensional-printed human replicas may be used to overcome these pitfalls. Methods: We developed a transparent method to fabricate a patient-specific replica, allowing for a broad scope of application. As an example, we then additively manufactured the relevant organs of a patient with locally advanced pancreatic ductal adenocarcinoma. We performed experimental design investigations for a magnetic field trap and explored the best fixation methods on an explanted porcine stomach wall. Results: We describe in detail the eight-step development of a 3D replica from CT data. To guide further users in their decisions, a morphologic box was created. Endoscopies were performed on the replica and the resulting magnetic field was investigated. The best fixation method to hold the magnetic field traps stably in place was the fixation of loops at the stomach wall with endoscopic single-use clips. Conclusions: Using only open access software, the developed method may be used for a variety of cancer-related research questions. A detailed description of the workflow allows one to produce a 3D replica for research or training purposes at low costs.
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Affiliation(s)
- Anjali A. Roeth
- Department of General, Visceral and Transplant Surgery, RWTH Aachen University Hospital, 52074Aachen, Germany; (T.H.); (C.D.K.); (U.P.N.)
- Department of Surgery, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
- Correspondence: ; Tel.: +49-241-80-89501
| | - Ian Garretson
- Department of Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, USA; (I.G.); (M.B.); (S.Q.); (A.G.); (B.S.L.)
| | - Maja Beltz
- Department of Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, USA; (I.G.); (M.B.); (S.Q.); (A.G.); (B.S.L.)
- Department of Electrical and Mechanical Engineering, Bonn-Rhein-Sieg University of Applied Sciences, 53757 Sankt Augustin, Germany;
| | - Till Herbold
- Department of General, Visceral and Transplant Surgery, RWTH Aachen University Hospital, 52074Aachen, Germany; (T.H.); (C.D.K.); (U.P.N.)
| | - Maximilian Schulze-Hagen
- Department of Diagnostic and Interventional Radiology, RWTH Aachen University Hospital, 52074 Aachen, Germany;
| | - Sebastian Quaisser
- Department of Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, USA; (I.G.); (M.B.); (S.Q.); (A.G.); (B.S.L.)
- Department of Electrical and Mechanical Engineering, Bonn-Rhein-Sieg University of Applied Sciences, 53757 Sankt Augustin, Germany;
| | - Alex Georgens
- Department of Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, USA; (I.G.); (M.B.); (S.Q.); (A.G.); (B.S.L.)
| | - Dirk Reith
- Department of Electrical and Mechanical Engineering, Bonn-Rhein-Sieg University of Applied Sciences, 53757 Sankt Augustin, Germany;
| | - Ioana Slabu
- Institute of Applied Medical Engineering, Helmholtz-Institute Aachen, RWTH Aachen University, 52062 Aachen, Germany;
| | - Christian D. Klink
- Department of General, Visceral and Transplant Surgery, RWTH Aachen University Hospital, 52074Aachen, Germany; (T.H.); (C.D.K.); (U.P.N.)
| | - Ulf P. Neumann
- Department of General, Visceral and Transplant Surgery, RWTH Aachen University Hospital, 52074Aachen, Germany; (T.H.); (C.D.K.); (U.P.N.)
- Department of Surgery, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
| | - Barbara S. Linke
- Department of Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, USA; (I.G.); (M.B.); (S.Q.); (A.G.); (B.S.L.)
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In vivo analysis of post-joint-preserving surgery fracture of 3D-printed Ti-6Al-4V implant to treat bone cancer. Biodes Manuf 2021. [DOI: 10.1007/s42242-021-00147-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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A study of three-dimensional reconstruction and printing models in two cases of soft tissue sarcoma of the thigh. Int J Comput Assist Radiol Surg 2021; 16:1627-1636. [PMID: 34115266 DOI: 10.1007/s11548-021-02384-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 04/16/2021] [Indexed: 01/17/2023]
Abstract
PURPOSE The aim of our study was to demonstrate the value of three-dimensional (3D) reconstruction and three-dimensional printing (3DP) models in two cases of soft tissue sarcoma (STS) of the thigh. MATERIALS AND METHODS Two patients with STS were recruited and underwent enhanced CT and MRI scans. Then, the 3D models were reconstructed and printed using the obtained data, and five experts were invited to assess the segmentation quality. In addition, 34 junior, intermediate and senior general surgeons were recruited to demonstrate the value of 3D models in preoperative planning and invited five surgeons to complete the assessment of 3D models-assisted intraoperative navigation. Finally, 32 interns were enrolled to explore the significance of 3D models in medical education. RESULTS All experts agree with the accuracy of the 3D models. The application of 3D models in preoperative planning improved the understanding of general surgeons (P = 0.000, P = 0.000, P = 0.000). After the planning tools were exchanged between the two groups, senior surgeons in group A showed more significant improvements in performance than junior and intermediate surgeons in group A (P = 0.001, P = 0.006). Surgeons unanimously agree on the value of 3D models in intraoperative navigation. When applied for the education of medical interns, these models could enhance their understanding of pathologic anatomies (P = 0.036). CONCLUSION In two operations for STS of the thigh with complex adjacencies, our study demonstrates that 3D models are of great value for preoperative planning, intraoperative navigation and medical education. More importantly, these models were more helpful to senior general surgeons.
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A Novel Customized 3D Printed Arm Stand Improving Skin Preparation Efficiency in Hand Surgery. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2020; 8:e3249. [PMID: 33299712 PMCID: PMC7722566 DOI: 10.1097/gox.0000000000003249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 09/21/2020] [Indexed: 11/29/2022]
Abstract
Patient preparation for hand surgery often necessitates skin preparation via the use of an assistant to hold the arm to be operated on in mid-air while disinfectant is applied. This study introduces a three-dimensional printed arm stand that decreases dead time during skin preparation, while also enabling the more efficient use of an assistant. The arm stand devices were customized on the anatomy of the patients and then successfully used on patients having general or regional anesthesia. A practical, reusable, and effective three-dimensional printed arm stand has been developed and applied on both adult and pediatric patients. We have found the bespoke device to be beneficial in terms of reducing theater dead time and overall costs, while increasing the efficiency of an upper limb operating theater list. The rapid prototyping cycle afforded by 3D printing renders this technology a valuable tool for developing medical devices with patient-precise dimensions.
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