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Li N, Fei P, Tous C, Rezaei Adariani M, Hautot ML, Ouedraogo I, Hadjadj A, Dimov IP, Zhang Q, Lessard S, Nosrati Z, Ng CN, Saatchi K, Häfeli UO, Tremblay C, Kadoury S, Tang A, Martel S, Soulez G. Human-scale navigation of magnetic microrobots in hepatic arteries. Sci Robot 2024; 9:eadh8702. [PMID: 38354257 DOI: 10.1126/scirobotics.adh8702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 01/17/2024] [Indexed: 02/16/2024]
Abstract
Using external actuation sources to navigate untethered drug-eluting microrobots in the bloodstream offers great promise in improving the selectivity of drug delivery, especially in oncology, but the current field forces are difficult to maintain with enough strength inside the human body (>70-centimeter-diameter range) to achieve this operation. Here, we present an algorithm to predict the optimal patient position with respect to gravity during endovascular microrobot navigation. Magnetic resonance navigation, using magnetic field gradients in clinical magnetic resonance imaging (MRI), is combined with the algorithm to improve the targeting efficiency of magnetic microrobots (MMRs). Using a dedicated microparticle injector, a high-precision MRI-compatible balloon inflation system, and a clinical MRI, MMRs were successfully steered into targeted lobes via the hepatic arteries of living pigs. The distribution ratio of the microrobots (roughly 2000 MMRs per pig) in the right liver lobe increased from 47.7 to 86.4% and increased in the left lobe from 52.2 to 84.1%. After passing through multiple vascular bifurcations, the number of MMRs reaching four different target liver lobes had a 1.7- to 2.6-fold increase in the navigation groups compared with the control group. Performing simulations on 19 patients with hepatocellular carcinoma (HCC) demonstrated that the proposed technique can meet the need for hepatic embolization in patients with HCC. Our technology offers selectable direction for actuator-based navigation of microrobots at the human scale.
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Affiliation(s)
- Ning Li
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Phillip Fei
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Cyril Tous
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Mahdi Rezaei Adariani
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
- Inria, Palaiseau 91120, France
| | - Marie-Lou Hautot
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Inès Ouedraogo
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Nantes, Nantes 44035, France
| | - Amina Hadjadj
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Ivan P Dimov
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Quan Zhang
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
- School of Artificial Intelligence, Shanghai University, Shanghai 200444, China
| | - Simon Lessard
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Zeynab Nosrati
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Courtney N Ng
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Katayoun Saatchi
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Urs O Häfeli
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Charles Tremblay
- Department of Computer Engineering and Software Engineering, Polytechnique Montréal, Montréal, Québec H3T 1J4, Canada
| | - Samuel Kadoury
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Department of Computer Engineering and Software Engineering, Polytechnique Montréal, Montréal, Québec H3T 1J4, Canada
| | - An Tang
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
- Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec H2X 0C1, Canada
| | - Sylvain Martel
- Department of Computer Engineering and Software Engineering, Polytechnique Montréal, Montréal, Québec H3T 1J4, Canada
- Department of Bioengineering, McGill University, Montréal, Québec H3A 0E9, Canada
| | - Gilles Soulez
- Clinical Laboratory of Image Processing (LCTI), Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec H2X 0A9, Canada
- Université de Montréal, Montréal, Québec H3T 1J4, Canada
- Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec H2X 0C1, Canada
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Wang T, Chang TMS. Superparamagnetic Artificial Cells PLGA-Fe 3O 4 Micro/Nanocapsules for Cancer Targeted Delivery. Cancers (Basel) 2023; 15:5807. [PMID: 38136352 PMCID: PMC10741498 DOI: 10.3390/cancers15245807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/10/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Artificial cells have been extensively used in many fields, such as nanomedicine, biotherapy, blood substitutes, drug delivery, enzyme/gene therapy, cancer therapy, and the COVID-19 vaccine. The unique properties of superparamagnetic Fe3O4 nanoparticles have contributed to increased interest in using superparamagnetic artificial cells (PLGA-Fe3O4 micro/nanocapsules) for targeted therapy. In this review, the preparation methods of Fe3O4 NPs and superparamagnetic artificial cell PLGA-drug-Fe3O4 micro/nanocapsules are discussed. This review also focuses on the recent progress of superparamagnetic PLGA-drug-Fe3O4 micro/nanocapsules as targeted therapeutics. We shall concentrate on the use of superparamagnetic artificial cells in the form of PLGA-drug-Fe3O4 nanocapsules for magnetic hyperthermia/photothermal therapy and cancer therapies, including lung breast cancer and glioblastoma.
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Affiliation(s)
| | - Thomas Ming Swi Chang
- Artificial Cells and Organs Research Centre, Departments of Medicine and Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, QC H3G 1Y6, Canada
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Sagoe PNK, Velázquez EJM, Espiritusanto YM, Gilbert A, Orado T, Wang Q, Jain E. Fabrication of PEG-PLGA Microparticles with Tunable Sizes for Controlled Drug Release Application. Molecules 2023; 28:6679. [PMID: 37764454 PMCID: PMC10534673 DOI: 10.3390/molecules28186679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Polymeric microparticles of polyethyleneglycol-polylactic acid-co-glycolic acid (PEG-PLGA) are widely used as drug carriers for a variety of applications due to their unique characteristics. Although existing techniques for producing polymeric drug carriers offer the possibility of achieving greater production yield across a wide range of sizes, these methods are improbable to precisely tune particle size while upholding uniformity of particle size and morphology, ensuring consistent production yield, maintaining batch-to-batch reproducibility, and improving drug loading capacity. Herein, we developed a novel scalable method for the synthesis of tunable-sized microparticles with improved monodispersity and batch-to-batch reproducibility via the coaxial flow-phase separation technique. The study evaluated the effect of various process parameters on microparticle size and polydispersity, including polymer concentration, stirring rate, surfactant concentration, and the organic/aqueous phase flow rate and volume ratio. The results demonstrated that stirring rate and polymer concentration had the most significant impact on the mean particle size and distribution, whereas surfactant concentration had the most substantial impact on the morphology of particles. In addition to synthesizing microparticles of spherical morphology yielding particle sizes in the range of 5-50 µm across different formulations, we were able to also synthesize several microparticles exhibiting different morphologies and particle concentrations as a demonstration of the tunability and scalability of this method. Notably, by adjusting key determining process parameters, it was possible to achieve microparticle sizes in a comparable range (5-7 µm) for different formulations despite varying the concentration of polymer and volume of polymer solution in the organic phase by an order of magnitude. Finally, by the incorporation of fluorescent dyes as model hydrophilic and hydrophobic drugs, we further demonstrated how polymer amount influences drug loading capacity, encapsulation efficiency, and release kinetics of these microparticles of comparable sizes. Our study provides a framework for fabricating both hydrophobic and hydrophilic drug-loaded microparticles and elucidates the interplay between fabrication parameters and the physicochemical properties of microparticles, thereby offering an itinerary for expanding the applicability of this method for producing polymeric microparticles with desirable characteristics for specific drug delivery applications.
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Affiliation(s)
- Paul Nana Kwame Sagoe
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
| | | | - Yohely Maria Espiritusanto
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
| | - Amelia Gilbert
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA;
| | - Thalma Orado
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
| | - Qiu Wang
- School of Education, Syracuse University, Syracuse, NY 13244, USA;
| | - Era Jain
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
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Gan S, Dong J, Li X, Wang J, Chen L, Wang Y, Feng S, Li H, Zhou G. Smart "Thrombus": Self-Localizing UCST-Type Microcage. ACS Macro Lett 2023; 12:320-324. [PMID: 36802516 DOI: 10.1021/acsmacrolett.2c00731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Embolization is often used to block blood supply for controlling the growth of fibroids and malignant tumors, but limited by embolic agents lacking spontaneous targeting and post-treatment removal. So we first adopted nonionic poly(acrylamide-co-acrylonitrile) with an upper critical solution temperature (UCST) to build up self-localizing microcages by inverse emulsification. The results showed that these UCST-type microcages behaved with the appropriate phase-transition threshold value around 40 °C, and spontaneously underwent an expansion-fusion-fission cycle under the stimulus of mild temperature hyperthermia. Given the simultaneous local release of cargoes, this simple but smart microcage is expected to act as a multifunctional embolic agent for tumorous starving therapy, tumor chemotherapy, and imaging.
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Affiliation(s)
- Shenglong Gan
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- Department of Chemistry, City University of Hong Kong, Hong Kong 999077, P. R. China
| | - Jiao Dong
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Xian Li
- Department of Radiology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, P. R. China
| | - Juan Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Longbin Chen
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Yao Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Shiting Feng
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, P. R. China
| | - Hao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
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5
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San Valentin EMD, Barcena AJR, Klusman C, Martin B, Melancon MP. Nano-embedded medical devices and delivery systems in interventional radiology. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1841. [PMID: 35946543 PMCID: PMC9840652 DOI: 10.1002/wnan.1841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/01/2022] [Accepted: 07/12/2022] [Indexed: 01/31/2023]
Abstract
Nanomaterials research has significantly accelerated the development of the field of vascular and interventional radiology. The incorporation of nanoparticles with unique and functional properties into medical devices and delivery systems has paved the way for the creation of novel diagnostic and therapeutic procedures for various clinical disorders. In this review, we discuss the advancements in the field of interventional radiology and the role of nanotechnology in maximizing the benefits and mitigating the disadvantages of interventional radiology theranostic procedures. Several nanomaterials have been studied to improve the efficacy of interventional radiology interventions, reduce the complications associated with medical devices, improve the accuracy and efficiency of drug delivery systems, and develop innovative imaging modalities. Here, we summarize the recent progress in the development of medical devices and delivery systems that link nanotechnology in vascular and interventional radiology. This article is categorized under: Diagnostic Tools > Diagnostic Nanodevices Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Nanomedicine for Cardiovascular Disease.
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Affiliation(s)
- Erin Marie D San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- St. Luke's Medical Center College of Medicine-William H. Quasha Memorial, Quezon City, Philippines
| | | | - Carleigh Klusman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Benjamin Martin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Marites P Melancon
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA
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Go G, Yoo A, Nguyen KT, Nan M, Darmawan BA, Zheng S, Kang B, Kim CS, Bang D, Lee S, Kim KP, Kang SS, Shim KM, Kim SE, Bang S, Kim DH, Park JO, Choi E. Multifunctional microrobot with real-time visualization and magnetic resonance imaging for chemoembolization therapy of liver cancer. SCIENCE ADVANCES 2022; 8:eabq8545. [PMID: 36399561 PMCID: PMC9674283 DOI: 10.1126/sciadv.abq8545] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/30/2022] [Indexed: 05/28/2023]
Abstract
Microrobots that can be precisely guided to target lesions have been studied for in vivo medical applications. However, existing microrobots have challenges in vivo such as biocompatibility, biodegradability, actuation module, and intra- and postoperative imaging. This study reports microrobots visualized with real-time x-ray and magnetic resonance imaging (MRI) that can be magnetically guided to tumor feeding vessels for transcatheter liver chemoembolization in vivo. The microrobots, composed of a hydrogel-enveloped porous structure and magnetic nanoparticles, enable targeted delivery of therapeutic and imaging agents via magnetic guidance from the actuation module under real-time x-ray imaging. In addition, the microrobots can be tracked using MRI as postoperative imaging and then slowly degrade over time. The in vivo validation of microrobot system-mediated chemoembolization was demonstrated in a rat liver with a tumor model. The proposed microrobot provides an advanced medical robotic platform that can overcome the limitations of existing microrobots and current liver chemoembolization.
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Affiliation(s)
- Gwangjun Go
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Ami Yoo
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Kim Tien Nguyen
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Minghui Nan
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Bobby Aditya Darmawan
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Shirong Zheng
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Byungjeon Kang
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- College of AI Convergence, Chonnam National University, Gwangju 34931, Korea
| | - Chang-Sei Kim
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Doyeon Bang
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- College of AI Convergence, Chonnam National University, Gwangju 34931, Korea
| | - Seonmin Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul 05505, Korea
| | - Kyu-Pyo Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul 05505, Korea
| | - Seong Soo Kang
- Department of Veterinary Surgery, College of Veterinary Medicine and Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Kyung Mi Shim
- Department of Veterinary Surgery, College of Veterinary Medicine and Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Se Eun Kim
- Department of Veterinary Surgery, College of Veterinary Medicine and Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Deok-Ho Kim
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Jong-Oh Park
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Eunpyo Choi
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
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Li N, Tous C, Dimov IP, Cadoret D, Fei P, Majedi Y, Lessard S, Nosrati Z, Saatchi K, Hafeli UO, Tang A, Kadoury S, Martel S, Soulez G. Quantification and 3D localization of magnetically navigated superparamagnetic particles using MRI in phantom and swine chemoembolization models. IEEE Trans Biomed Eng 2022; 69:2616-2627. [PMID: 35167442 DOI: 10.1109/tbme.2022.3151819] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Superparamagnetic nanoparticles (SPIONs) can be combined with tumor chemoembolization agents to form magnetic drug-eluting beads (MDEBs), which are navigated magnetically in the MRI scanner through the vascular system. We aim to develop a method to accurately quantify and localize these particles and to validate the method in phantoms and swine models. METHODS MDEBs were made of Fe3O4 SPIONs. After injected known numbers of MDEBs, susceptibility artifacts in three-dimensional (3D) volumetric interpolated breath-hold examination (VIBE) sequences were acquired in glass and Polyvinyl alcohol (PVA) phantoms, and two living swine. Image processing of VIBE images provided the volume relationship between MDEBs and their artifact at different VIBE acquisitions and post-processing parameters. Simulated hepatic-artery embolization was performed in vivo with an MRI-conditional magnetic-injection system, using the volume relationship to locate and quantify MDEB distribution. RESULTS Individual MDEBs were spatially identified, and their artifacts quantified, showing no correlation with magnetic-field orientation or sequence bandwidth, but exhibiting a relationship with echo time and providing a linear volume relationship. Two MDEB aggregates were magnetically steered into desired liver regions while the other 19 had no steering, and 25 aggregates were injected into another swine without steering. The MDEBs were spatially identified and the volume relationship showed accuracy in assessing the number of the MDEBs, with small errors (8.8%). CONCLUSION AND SIGNIFICANCE MDEBs were able to be steered into desired body regions and then localized using 3D VIBE sequences. The resulting volume relationship was linear, robust, and allowed for quantitative analysis of the MDEB distribution.
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Tous C, Li N, Dimov IP, Kadoury S, Tang A, Häfeli UO, Nosrati Z, Saatchi K, Moran G, Couch MJ, Martel S, Lessard S, Soulez G. Navigation of Microrobots by MRI: Impact of Gravitational, Friction and Thrust Forces on Steering Success. Ann Biomed Eng 2021; 49:3724-3736. [PMID: 34622313 DOI: 10.1007/s10439-021-02865-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/07/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Magnetic resonance navigation (MRN) uses MRI gradients to steer magnetic drug-eluting beads (MDEBs) across vascular bifurcations. We aim to experimentally verify our theoretical forces balance model (gravitational, thrust, friction, buoyant and gradient steering forces) to improve the MRN targeted success rate. METHOD A single-bifurcation phantom (3 mm inner diameter) made of poly-vinyl alcohol was connected to a cardiac pump at 0.8 mL/s, 60 beats/minutes with a glycerol solution to reproduce the viscosity of blood. MDEB aggregates (25 ± 6 particles, 200 [Formula: see text]) were released into the main branch through a 5F catheter. The phantom was tilted horizontally from - 10° to +25° to evaluate the MRN performance. RESULTS The gravitational force was equivalent to 71.85 mT/m in a 3T MRI. The gradient duration and amplitude had a power relationship (amplitude=78.717 [Formula: see text]). It was possible, in 15° elevated vascular branches, to steer 87% of injected aggregates if two MRI gradients are simultaneously activated ([Formula: see text] = +26.5 mT/m, [Formula: see text]= +18 mT/m for 57% duty cycle), the flow velocity was minimized to 8 cm/s and a residual pulsatile flow to minimize the force of friction. CONCLUSION Our experimental model can determine the maximum elevation angle MRN can perform in a single-bifurcation phantom simulating in vivo conditions.
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Affiliation(s)
- Cyril Tous
- Centre de recherche du Centre hospitalier de l, Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montreal, QC, H2X 0A9, Canada.,Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC, H3T 1J4, Canada
| | - Ning Li
- Centre de recherche du Centre hospitalier de l, Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montreal, QC, H2X 0A9, Canada.,Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC, H3T 1J4, Canada
| | - Ivan P Dimov
- Centre de recherche du Centre hospitalier de l, Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montreal, QC, H2X 0A9, Canada
| | - Samuel Kadoury
- Polytechnique Montréal, 2500 Chemin de Polytechnique, 28, Montreal, QC, H3T 1J4, Canada
| | - An Tang
- Centre de recherche du Centre hospitalier de l, Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montreal, QC, H2X 0A9, Canada.,Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC, H3T 1J4, Canada
| | - Urs O Häfeli
- University of British Columbia, 2405 Westbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Zeynab Nosrati
- University of British Columbia, 2405 Westbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Katayoun Saatchi
- University of British Columbia, 2405 Westbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | | | | | - Sylvain Martel
- Polytechnique Montréal, 2500 Chemin de Polytechnique, 28, Montreal, QC, H3T 1J4, Canada
| | - Simon Lessard
- Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC, H3T 1J4, Canada.,École de Technologie Supérieur, 1100 Rue Notre-Dame O, Montreal, QC, H3C 1K3, Canada
| | - Gilles Soulez
- Centre de recherche du Centre hospitalier de l, Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montreal, QC, H2X 0A9, Canada. .,Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC, H3T 1J4, Canada.
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9
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Future Advances in Diagnosis and Drug Delivery in Interventional Radiology Using MR Imaging-Steered Theranostic Iron Oxide Nanoparticles. J Vasc Interv Radiol 2021; 32:1292-1295.e1. [PMID: 34462079 DOI: 10.1016/j.jvir.2021.05.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/11/2021] [Accepted: 05/26/2021] [Indexed: 11/24/2022] Open
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10
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Ortiz de Solorzano I, Mendoza G, Arruebo M, Sebastian V. Customized hybrid and NIR-light triggered thermoresponsive drug delivery microparticles synthetized by photopolymerization in a one-step flow focusing continuous microreactor. Colloids Surf B Biointerfaces 2020; 190:110904. [DOI: 10.1016/j.colsurfb.2020.110904] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/10/2020] [Accepted: 02/24/2020] [Indexed: 12/28/2022]
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11
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Hoshiar AK, Le TA, Valdastri P, Yoon J. Swarm of magnetic nanoparticles steering in multi-bifurcation vessels under fluid flow. JOURNAL OF MICRO-BIO ROBOTICS 2020. [DOI: 10.1007/s12213-020-00127-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Li N, Jiang Y, Plantefève R, Michaud F, Nosrati Z, Tremblay C, Saatchi K, Häfeli UO, Kadoury S, Moran G, Joly F, Martel S, Soulez G. Magnetic Resonance Navigation for Targeted Embolization in a Two-Level Bifurcation Phantom. Ann Biomed Eng 2019; 47:2402-2415. [PMID: 31290038 DOI: 10.1007/s10439-019-02317-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/28/2019] [Indexed: 12/22/2022]
Abstract
This work combines a particle injection system with our proposed magnetic resonance navigation (MRN) sequence with the intention of validating MRN in a two-bifurcation phantom for endovascular treatment of hepatocellular carcinoma (HCC). A theoretical physical model used to calculate the most appropriate size of the magnetic drug-eluting bead (MDEB, 200 μm) aggregates was proposed. The aggregates were injected into the phantom by a dedicated particle injector while a trigger signal was automatically sent to the MRI to start MRN which consists of interleaved tracking and steering sequences. When the main branch of the phantom was parallel to B0, the aggregate distribution ratio in the (left-left, left-right, right-left and right-right divisions was obtained with results of 8, 68, 24 and 0% respectively at baseline (no MRN) and increased to 84%, 100, 84 and 92% (p < 0.001, p = 0.004, p < 0.001, p < 0.001) after implementing our MRN protocol. When the main branch was perpendicular to B0, the right-left branch, having the smallest baseline distribution rate of 0%, reached 80% (p < 0.001) after applying MRN. Moreover, the success rate of MRN was always more than 92% at the 1st bifurcation in the experiments above.
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Affiliation(s)
- Ning Li
- Polytechnique Montréal, Chemin de Polytechnique, 2500 Chemin de Polytechnique, Montréal, QC, 28 H3T 1J4, Canada.,Laboratory of Clinical Image Processing, Le Centre de recherche du CHUM (CRCHUM), 900 Rue Saint-Denis, Montréal, QC, H2X 0A9, Canada
| | - Yuting Jiang
- Laboratory of Clinical Image Processing, Le Centre de recherche du CHUM (CRCHUM), 900 Rue Saint-Denis, Montréal, QC, H2X 0A9, Canada.,Department of Radiology, Radiation-Oncology and Nuclear Medicine and Institute of Biomedical Engineering, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - Rosalie Plantefève
- Laboratory of Clinical Image Processing, Le Centre de recherche du CHUM (CRCHUM), 900 Rue Saint-Denis, Montréal, QC, H2X 0A9, Canada
| | - Francois Michaud
- Laboratory of Clinical Image Processing, Le Centre de recherche du CHUM (CRCHUM), 900 Rue Saint-Denis, Montréal, QC, H2X 0A9, Canada.,Department of Radiology, Radiation-Oncology and Nuclear Medicine and Institute of Biomedical Engineering, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - Zeynab Nosrati
- University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Charles Tremblay
- Polytechnique Montréal, Chemin de Polytechnique, 2500 Chemin de Polytechnique, Montréal, QC, 28 H3T 1J4, Canada
| | - Katayoun Saatchi
- University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Urs O Häfeli
- University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Samuel Kadoury
- Polytechnique Montréal, Chemin de Polytechnique, 2500 Chemin de Polytechnique, Montréal, QC, 28 H3T 1J4, Canada.,Laboratory of Clinical Image Processing, Le Centre de recherche du CHUM (CRCHUM), 900 Rue Saint-Denis, Montréal, QC, H2X 0A9, Canada
| | | | - Florian Joly
- INRIA Paris, 2 rue Simone Iff, 75012, Paris, France
| | - Sylvain Martel
- Polytechnique Montréal, Chemin de Polytechnique, 2500 Chemin de Polytechnique, Montréal, QC, 28 H3T 1J4, Canada
| | - Gilles Soulez
- Laboratory of Clinical Image Processing, Le Centre de recherche du CHUM (CRCHUM), 900 Rue Saint-Denis, Montréal, QC, H2X 0A9, Canada. .,Department of Radiology, Radiation-Oncology and Nuclear Medicine and Institute of Biomedical Engineering, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montréal, QC, H3T 1J4, Canada.
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13
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Chen YP, Zhang JL, Zou Y, Wu YL. Recent Advances on Polymeric Beads or Hydrogels as Embolization Agents for Improved Transcatheter Arterial Chemoembolization (TACE). Front Chem 2019; 7:408. [PMID: 31231636 PMCID: PMC6560223 DOI: 10.3389/fchem.2019.00408] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/20/2019] [Indexed: 12/17/2022] Open
Abstract
Transcatheter arterial chemoembolization (TACE), aiming to block the hepatic artery for inhibiting tumor blood supply, became a popular therapy for hepatocellular carcinoma (HCC) patients. Traditional TACE formulation of anticancer drug emulsion in ethiodized oil (i.e., Lipiodol®) and gelatin sponge (i.e., Gelfoam®) had drawbacks on patient tolerance and resulted in undesired systemic toxicity, which were both significantly improved by polymeric beads, microparticles, or hydrogels by taking advantage of the elegant design of biocompatible or biodegradable polymers, especially amphiphilic polymers or polymers with both hydrophilic and hydrophobic chains, which could self-assemble into proposed microspheres or hydrogels. In this review, we aimed to summarize recent advances on polymeric embolization beads or hydrogels as TACE agents, with emphasis on their material basis of polymer architectures, which are important but have not yet been comprehensively summarized.
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Affiliation(s)
- Yun-Ping Chen
- Department of Oncology, The 910 Hospital of PLA, Quanzhou, China
| | - Jiang-Ling Zhang
- Department of Oncology, The 910 Hospital of PLA, Quanzhou, China
| | - Yanhong Zou
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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14
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Shahrokhi S, Shi J, Isichei B, Becker AT. Exploiting Nonslip Wall Contacts to Position Two Particles Using the Same Control Input. IEEE T ROBOT 2019. [DOI: 10.1109/tro.2019.2891487] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Yang C, He G, Zhang A, Wu Q, Zhou L, Hang T, Liu D, Xiao S, Chen HJ, Liu F, Li L, Wang J, Xie X. Injectable Slippery Lubricant-Coated Spiky Microparticles with Persistent and Exceptional Biofouling-Resistance. ACS CENTRAL SCIENCE 2019; 5:250-258. [PMID: 30834313 PMCID: PMC6396194 DOI: 10.1021/acscentsci.8b00605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Indexed: 05/05/2023]
Abstract
Injectable micron-sized particles have historically achieved promising applications, but they continued to suffer from long-term biofouling caused by the adhesions of biomolecules, cells, and bacteria. Recently, a slippery lubricant infusion porous substrate (SLIPS) exhibited robust antiadhesiveness against many liquids; however, they were constructed using a 2D substrate, and they were not suitable for in vivo applications, such as injectable biomaterials. Inspired by SLIPS, here, we report the first case of injectable solid microparticles coated with a lubricating liquid surface to continuously resist biofouling. In our design, microparticles were attached with nanospikes and fluorinated to entrap the lubricant. The nanospikes enabled the lubricant-coated spiky microparticles (LCSMPs) to anomalously disperse in water despite the attraction between the surfaces of the microparticles. This result indicated that the LCSMPs exhibited persistent anomalous dispersity in water while maintaining a robust lubricating surface layer. LCSMPs prevented the adhesion of proteins, mammalian cells, and bacteria, including Escherichia coli and Staphylococcus aureus. LCSMPs also reduced in vivo fibrosis while conventional microparticles were heavily biofouled. This technology introduced a new class of injectable anti-biofouling microparticles with reduced risks of inflammation and infections.
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Affiliation(s)
- Chengduan Yang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Gen He
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Aihua Zhang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Qianni Wu
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Lingfei Zhou
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Tian Hang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Di Liu
- Pritzker
School of Medicine, University of Chicago, Chicago, Illinois 60637, United States
| | - Shuai Xiao
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Hui-Jiuan Chen
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Fanmao Liu
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Linxian Li
- Ming
Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong
Kong
| | - Ji Wang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
| | - Xi Xie
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology; State Key Laboratory of Ophthalmology,
Zhongshan Ophthalmic Center, Sun Yat-sen
University, Guangzhou 510006, China
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16
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Li N, Michaud F, Nosrati Z, Loghin D, Tremblay C, Plantefeve R, Saatchi K, Hafeli UO, Martel S, Soulez G. MRI-Compatible Injection System for Magnetic Microparticle Embolization. IEEE Trans Biomed Eng 2018; 66:2331-2340. [PMID: 30575528 DOI: 10.1109/tbme.2018.2889000] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Dipole field navigation and magnetic resonance navigation exploit B0 magnetic fields and imaging gradients for targeted intra-arterial therapies by using magnetic drug-eluting beads (MDEBs). The strong magnetic strength (1.5 or 3 T) of clinical magnetic resonance imaging (MRI) scanners is the main challenge preventing the formation and controlled injection of specific-sized particle aggregates. Here, an MRI-compatible injector is proposed to solve the above problem. METHODS The injector consists of two peristaltic pumps, an optical counter, and a magnetic trap. The magnetic property of microparticles, the magnetic compatibility of different parts within the injector, and the field distribution of the MRI system were studied to determine the optimal design and setup of the injector. The performance was investigated through 30.4-emu/g biocompatible magnetic microparticles (230 ± 35 μm in diameter) corresponding to the specifications needed for trans-arterial chemoembolization in human adults. RESULTS The system can form aggregates containing 20 to 60 microparticles with a precision of six particles. The corresponding aggregate lengths range from 1.6 to 3.2 mm. Based on the injections of 50 MRI-visible boluses into a phantom which mimics realistic physiological conditions, 82% of the aggregates successfully reached subbranches. CONCLUSION AND SIGNIFICANCE This system has the capability to operate within the strong magnetic field of a clinical 3-T MRI, to form proper particle aggregates and to automatically inject these aggregates into the MRI bore. Moreover, the versatility of the proposed injector renders it suitable for selective injections of MDEBs during MR-guided embolization procedures.
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17
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Michaud F, Li N, Plantefève R, Nosrati Z, Tremblay C, Saatchi K, Moran G, Bigot A, Häfeli UO, Kadoury S, Tang A, Perreault P, Martel S, Soulez G. Selective embolization with magnetized microbeads using magnetic resonance navigation in a controlled-flow liver model. Med Phys 2018; 46:789-799. [PMID: 30451303 DOI: 10.1002/mp.13298] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/18/2018] [Accepted: 11/04/2018] [Indexed: 12/29/2022] Open
Abstract
PURPOSE The purpose of this study was to demonstrate the feasibility of using a custom gradient sequence on an unmodified 3T magnetic resonance imaging (MRI) scanner to perform magnetic resonance navigation (MRN) by investigating the blood flow control method in vivo, reproducing the obtained rheology in a phantom mimicking porcine hepatic arterial anatomy, injecting magnetized microbead aggregates through an implantable catheter, and steering the aggregates across arterial bifurcations for selective tumor embolization. MATERIALS AND METHODS In the first phase, arterial hepatic velocity was measured using cine phase-contrast imaging in seven pigs under free-flow conditions and controlled-flow conditions, whereby a balloon catheter is used to occlude arterial flow and saline is injected at different rates. Three of the seven pigs previously underwent selective lobe embolization to simulate a chemoembolization procedure. In the second phase, the measured in vivo controlled-flow velocities were approximately reproduced in a Y-shaped vascular bifurcation phantom by injecting saline at an average rate of 0.6 mL/s with a pulsatile component. Aggregates of 200-μm magnetized particles were steered toward the right or left hepatic branch using a 20-mT/m MRN gradient. The phantom was oriented at 0°, 45°, and 90° with respect to the B0 magnetic field. The steering differences between left-right gradient and baseline were calculated using Fisher's exact test. A theoretical model of the trajectory of the aggregate within the main phantom branch taking into account gravity, magnetic force, and hydrodynamic drag was also designed, solved, and validated against the experimental results to characterize the physical limitations of the method. RESULTS At an injection rate of 0.5 mL/s, the average flow velocity decreased from 20 ± 15 to 8.4 ± 5.0 cm/s after occlusion in nonembolized pigs and from 13.6 ± 2.0 to 5.4 ± 3.0 cm/s in previously embolized pigs. The pulsatility index measured to be 1.7 ± 1.8 and 1.1 ± 0.1 for nonembolized and embolized pigs, respectively, decreased to 0.6 ± 0.4 and 0.7 ± 0.3 after occlusion. For MRN performed at each orientation, the left-right distribution of aggregates was 55%, 25%, and 75% on baseline and 100%, 100%, and 100% (P < 0.001, P = 0.003, P = 0.003) after the application of MRN, respectively. According to the theoretical model, the aggregate reaches a stable transverse position located toward the direction of the gradient at a distance equal to 5.8% of the radius away from the centerline within 0.11 s, at which point the aggregate will have transited through a longitudinal distance of 1.0 mm from its release position. CONCLUSION In this study, we showed that the use of a balloon catheter reduces arterial hepatic flow magnitude and variation with the aim to reduce steering failures caused by fast blood flow rates and low magnetic steering forces. A mathematical model confirmed that the reduced flow rate is low enough to maximize steering ratio. After reproducing the flow rate in a vascular bifurcation phantom, we demonstrated the feasibility of MRN after injection of microparticle aggregates through a dedicated injector. This work is an important step leading to MRN-based selective embolization techniques in humans.
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Affiliation(s)
- François Michaud
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Ning Li
- Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, Québec, H3T 1J4, Canada
| | - Rosalie Plantefève
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Zeynab Nosrati
- University of British Columbia, 2405 Wesbrook Mall, Vancouver, British-Columbia, V6T 1Z3, Canada
| | - Charles Tremblay
- Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, Québec, H3T 1J4, Canada
| | - Katayoun Saatchi
- University of British Columbia, 2405 Wesbrook Mall, Vancouver, British-Columbia, V6T 1Z3, Canada
| | - Gerald Moran
- Siemens Healthcare Limited, 1577 North Service Road East, Oakville, Ontario, L6H 0H6, Canada
| | - Alexandre Bigot
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Urs O Häfeli
- University of British Columbia, 2405 Wesbrook Mall, Vancouver, British-Columbia, V6T 1Z3, Canada
| | - Samuel Kadoury
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada.,Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, Québec, H3T 1J4, Canada
| | - An Tang
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Pierre Perreault
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Sylvain Martel
- Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, Québec, H3T 1J4, Canada
| | - Gilles Soulez
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
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18
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Wang JZ, Xiong NY, Zhao LZ, Hu JT, Kong DC, Yuan JY. Review fantastic medical implications of 3D-printing in liver surgeries, liver regeneration, liver transplantation and drug hepatotoxicity testing: A review. Int J Surg 2018; 56:1-6. [PMID: 29886280 DOI: 10.1016/j.ijsu.2018.06.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 06/05/2018] [Indexed: 02/07/2023]
Abstract
The epidemiological trend in liver diseases becomes more serious worldwide. Several recent articles published by International Journal of Surgery in 2018 particularly emphasized the encouraging clinical benefits of hepatectomy, liver regeneration and liver transplantation, however, there are still many technical bottlenecks underlying these therapeutic approaches. Remarkably, a few preliminary studies have shown some clues to the role of three-dimensional (3D) printing in improving traditional therapy for liver diseases. Here, we concisely elucidated the curative applications of 3D-printing (no cells) and 3D Bio-printing (with hepatic cells), such as 3D-printed patient-specific liver models and devices for medical education, surgical simulation, hepatectomy and liver transplantation, 3D Bio-printed hepatic constructs for liver regeneration and artificial liver, 3D-printed liver tissues for evaluating drug's hepatotoxicity, and so on. Briefly, 3D-printed liver models and bioactive tissues may facilitate a lot of key steps to cure liver disorders, predictably bringing promising clinical benefits. This work further provides novel insights into facilitating treatment of hepatic carcinoma, promoting liver regeneration both in vivo and in vitro, expanding transplantable liver resources, maximizing therapeutic efficacy as well as minimizing surgical complications, medical hepatotoxicity, operational time, economic costs, etc.
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Affiliation(s)
- Jing-Zhang Wang
- Department of Medical Technology, College of Medicine, Affiliated Hospital, Hebei University of Engineering, Handan, 056002, PR China.
| | - Nan-Yan Xiong
- College of Medicine, Hebei University of Engineering, Handan, 056002, PR China
| | - Li-Zhen Zhao
- Department of Clinical Laboratory, Affiliated Hospital of Hebei University of Engineering, Handan, 056002, PR China
| | - Jin-Tian Hu
- Department of Clinical Laboratory, Affiliated Hospital of Hebei University of Engineering, Handan, 056002, PR China
| | - De-Cheng Kong
- College of Medicine, Hebei University of Engineering, Handan, 056002, PR China
| | - Jiang-Yong Yuan
- Department of Cardiology, Affiliated Hospital of Hebei University of Engineering, Handan, 056002, PR China.
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