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Gairola S, Solanki SL, Patkar S, Goel M. Artificial Intelligence in Perioperative Planning and Management of Liver Resection. Indian J Surg Oncol 2024; 15:186-195. [PMID: 38818006 PMCID: PMC11133260 DOI: 10.1007/s13193-024-01883-4] [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: 09/18/2023] [Accepted: 01/16/2024] [Indexed: 06/01/2024] Open
Abstract
Artificial intelligence (AI) is a speciality within computer science that deals with creating systems that can replicate the intelligence of a human mind and has problem-solving abilities. AI includes a diverse array of techniques and approaches such as machine learning, neural networks, natural language processing, robotics, and expert systems. An electronic literature search was conducted using the databases of "PubMed" and "Google Scholar". The period for the search was from 2000 to June 2023. The search terms included "artificial intelligence", "machine learning", "liver cancers", "liver tumors", "hepatectomy", "perioperative" and their synonyms in various combinations. The search also included all MeSH terms. The extracted articles were further reviewed in a step-wise manner for identification of relevant studies. A total of 148 articles were identified after the initial literature search. Initial review included screening of article titles for relevance and identifying duplicates. Finally, 65 articles were reviewed for this review article. The future of AI in liver cancer planning and management holds immense promise. AI-driven advancements will increasingly enable precise tumour detection, location, and characterisation through enhanced image analysis. ML algorithms will predict patient-specific treatment responses and complications, allowing for tailored therapies. Surgical robots and AI-guided procedures will enhance the precision of liver resections, reducing risks and improving outcomes. AI will also streamline patient monitoring, better hemodynamic management, enabling early detection of recurrence or complications. Moreover, AI will facilitate data-driven research, accelerating the development of novel treatments and therapies. Ultimately, AI's integration will revolutionise liver cancer care, offering personalised, efficient and effective solutions, improving patients' quality of life and survival rates.
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Affiliation(s)
- Shruti Gairola
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra India
| | - Sohan Lal Solanki
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra India
| | - Shraddha Patkar
- Division of Hepatobiliary Surgical Oncology, Department of Surgical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra India
| | - Mahesh Goel
- Division of Hepatobiliary Surgical Oncology, Department of Surgical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra India
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Zeng X, Tao H, Dong Y, Zhang Y, Yang J, Xuan F, Zhou J, Jia W, Liu J, Dai C, Hu H, Xiang N, Zeng N, Zhou W, Lau W, Yang J, Fang C. Impact of three-dimensional reconstruction visualization technology on short-term and long-term outcomes after hepatectomy in patients with hepatocellular carcinoma: a propensity-score-matched and inverse probability of treatment-weighted multicenter study. Int J Surg 2024; 110:1663-1676. [PMID: 38241321 PMCID: PMC10942183 DOI: 10.1097/js9.0000000000001047] [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: 10/06/2023] [Accepted: 12/20/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND Three-dimensional reconstruction visualization technology (3D-RVT) is an important tool in the preoperative assessment of patients undergoing liver resection. However, it is not clear whether this technique can improve short-term and long-term outcomes in patients with hepatocellular carcinoma (HCC) compared with two-dimensional (2D) imaging. METHOD A total of 3402 patients from five centers were consecutively enrolled from January 2016 to December 2020, and grouped based on the use of 3D-RVT or 2D imaging for preoperative assessment. Baseline characteristics were balanced using propensity score matching (PSM, 1:1) and stabilized inverse probability of treatment-weighting (IPTW) to reduce potential selection bias. The perioperative outcomes, long-term overall survival (OS), and recurrence-free survival (RFS) were compared between the two groups. Cox-regression analysis was used to identify the risk factors associated with RFS. RESULTS A total of 1681 patients underwent 3D-RVT assessment before hepatectomy (3D group), while 1721 patients used 2D assessment (2D group). The PSM cohort included 892 patient pairs. In the IPTW cohort, there were 1608.3 patients in the 3D group and 1777.9 patients in the 2D group. In both cohorts, the 3D group had shorter operation times, lower morbidity and liver failure rates, as well as shorter postoperative hospital stays. The 3D group had more margins ≥10 mm and better RFS than the 2D group. The presence of tumors with a diameter ≥5 cm, intraoperative blood transfusion and multiple tumors were identified as independent risk factors for RFS, while 3D assessment and anatomical resection were independent protective factors. CONCLUSION In this multicenter study, perioperative outcomes and RFS of HCC patients following 3D-RVT assessment were significantly different from those following 2D imaging assessment. Thus, 3D-RVT may be a feasible alternative assessment method before hepatectomy for these patients.
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Affiliation(s)
- Xiaojun Zeng
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Haisu Tao
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Yanchen Dong
- School of Traditional Chinese Medicine, Southern Medical University
| | - Yuwei Zhang
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Junying Yang
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Feichao Xuan
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Jian Zhou
- Department of Liver Surgery, Zhongshan Hospital, Fudan University
| | - Weidong Jia
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei
| | - Jingfeng Liu
- Liver Department, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou
| | - Chaoliu Dai
- Department of the Second General Surgery, Shengjing Hospital of China Medical University, Shenyang
| | - Haoyu Hu
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Nan Xiang
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Ning Zeng
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Weiping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Shanghai
| | - Wanyee Lau
- Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China
| | - Jian Yang
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
| | - Chihua Fang
- Department of Hepatobiliary Surgery, Zhujiang Hospital
- Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou
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Sanchez-Garcia J, Lopez-Verdugo F, Shorti R, Krong J, Kastenberg ZJ, Walters S, Gagnon A, Paci P, Zendejas I, Alonso D, Fujita S, Contreras AG, Botha J, Esquivel CO, Rodriguez-Davalos MI. Three-dimensional Liver Model Application for Liver Transplantation. Transplantation 2024; 108:464-472. [PMID: 38259179 DOI: 10.1097/tp.0000000000004730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
BACKGROUND Children are removed from the liver transplant waitlist because of death or progressive illness. Size mismatch accounts for 30% of organ refusal. This study aimed to demonstrate that 3-dimensional (3D) technology is a feasible and accurate adjunct to organ allocation and living donor selection process. METHODS This prospective multicenter study included pediatric liver transplant candidates and living donors from January 2020 to February 2023. Patient-specific, 3D-printed liver models were used for anatomic planning, real-time evaluation during organ procurement, and surgical navigation. The primary outcome was to determine model accuracy. The secondary outcome was to determine the impact of outcomes in living donor hepatectomy. Study groups were analyzed using propensity score matching with a retrospective cohort. RESULTS Twenty-eight recipients were included. The median percentage error was -0.6% for 3D models and had the highest correlation to the actual liver explant (Pearson's R = 0.96, P < 0.001) compared with other volume calculation methods. Patient and graft survival were comparable. From 41 living donors, the median percentage error of the allograft was 12.4%. The donor-matched study group had lower central line utilization (21.4% versus 75%, P = 0.045), shorter length of stay (4 versus 7 d, P = 0.003), and lower mean comprehensive complication index (3 versus 21, P = 0.014). CONCLUSIONS Three-dimensional volume is highly correlated with actual liver explant volume and may vary across different allografts for living donation. The addition of 3D-printed liver models during the transplant evaluation and organ procurement process is a feasible and safe adjunct to the perioperative decision-making process.
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Affiliation(s)
- Jorge Sanchez-Garcia
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Fidel Lopez-Verdugo
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Rami Shorti
- Emerging Technologies, Intermountain Health, Murray, UT
| | - Jake Krong
- Transplant Research Department, Intermountain Medical Center, Murray, UT
| | - Zachary J Kastenberg
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Division of Pediatric Surgery, University of Utah School of Medicine, Salt Lake City, UT
| | - Shannon Walters
- Department of Radiology, Stanford University School of Medicine, Stanford, CA
| | - Andrew Gagnon
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Philippe Paci
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Ivan Zendejas
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Diane Alonso
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Shiro Fujita
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Alan G Contreras
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Jean Botha
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Abdominal Transplant Service, Intermountain Medical Center, Murray, UT
| | - Carlos O Esquivel
- Division of Abdominal Transplantation, Lucile Packard Children's Hospital, Stanford University School of Medicine, Stanford, CA
| | - Manuel I Rodriguez-Davalos
- Liver Center, Intermountain Primary Children's Hospital, Salt Lake City, UT
- Division of Transplant Surgery, University of Utah School of Medicine, Salt Lake City, UT
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Ullah M, Bibi A, Wahab A, Hamayun S, Rehman MU, Khan SU, Awan UA, Riaz NUA, Naeem M, Saeed S, Hussain T. Shaping the Future of Cardiovascular Disease by 3D Printing Applications in Stent Technology and its Clinical Outcomes. Curr Probl Cardiol 2024; 49:102039. [PMID: 37598773 DOI: 10.1016/j.cpcardiol.2023.102039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023]
Abstract
Cardiovascular disease (CVD) is a leading cause of death worldwide. In recent years, 3D printing technology has ushered in a new era of innovation in cardiovascular medicine. 3D printing in CVD management encompasses various aspects, from patient-specific models and preoperative planning to customized medical devices and novel therapeutic approaches. In-stent technology, 3D printing has revolutionized the design and fabrication of intravascular stents, offering tailored solutions for complex anatomies and individualized patient needs. The advantages of 3D-printed stents, such as improved biocompatibility, enhanced mechanical properties, and reduced risk of in-stent restenosis. Moreover, the clinical trials and case studies that shed light on the potential of 3D printing technology to improve patient outcomes and revolutionize the field has been comprehensively discussed. Furthermore, regulatory considerations, and challenges in implementing 3D-printed stents in clinical practice are also addressed, underscoring the need for standardization and quality assurance to ensure patient safety and device reliability. This review highlights a comprehensive resource for clinicians, researchers, and policymakers seeking to harness the full potential of 3D printing technology in the fight against CVD.
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Affiliation(s)
- Muneeb Ullah
- Department of Pharmacy, Kohat University of Science, and technology (KUST), Kohat, Khyber Pakhtunkhwa, Pakistan
| | - Ayisha Bibi
- Department of Pharmacy, Kohat University of Science, and technology (KUST), Kohat, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Wahab
- Department of Pharmacy, Kohat University of Science, and technology (KUST), Kohat, Khyber Pakhtunkhwa, Pakistan
| | - Shah Hamayun
- Department of Cardiology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
| | - Mahboob Ur Rehman
- Department of Cardiology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
| | - Shahid Ullah Khan
- Department of Biochemistry, Women Medical and Dental College, Khyber Medical University, Abbottabad, Khyber Pakhtunkhwa, Pakistan.
| | - Uzma Azeem Awan
- Department of Biological Sciences, National University of Medical Sciences (NUMS) Rawalpindi, Rawalpindi, Punjab, Pakistan
| | - Noor-Ul-Ain Riaz
- Department of Pharmacy, Kohat University of Science, and technology (KUST), Kohat, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Naeem
- Department of Biological Sciences, National University of Medical Sciences (NUMS) Rawalpindi, Rawalpindi, Punjab, Pakistan.
| | - Sumbul Saeed
- School of Environment and Science, Griffith University, Nathan, Queensland, Australia
| | - Talib Hussain
- Women Dental College Abbottabad, Abbottabad, Khyber Pakhtunkhwa, Pakistan
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Bao G, Yang P, Yi J, Peng S, Liang J, Li Y, Guo D, Li H, Ma K, Yang Z. Full-sized realistic 3D printed models of liver and tumour anatomy: a useful tool for the clinical medicine education of beginning trainees. BMC MEDICAL EDUCATION 2023; 23:574. [PMID: 37582729 PMCID: PMC10428657 DOI: 10.1186/s12909-023-04535-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 07/24/2023] [Indexed: 08/17/2023]
Abstract
BACKGROUND Simulation-based medical education (SBME) and three-dimensional printed (3DP) models are increasingly used in continuing medical education and clinical training. However, our understanding of their role and value in improving trainees' understanding of the anatomical and surgical procedures associated with liver surgery remains limited. Furthermore, gender bias is also a potential factor in the evaluation of medical education. Therefore, the aim of this study was to evaluate the educational benefits trainees receive from the use of novel 3DP liver models while considering trainees' experience and gender. METHODS Full-sized 3DP liver models were developed and printed using transparent material based on anonymous CT scans. We used printed 3D models and conventional 2D CT scans of the liver to investigate thirty trainees with various levels of experience and different genders in the context of both small group teaching and formative assessment. We adopted a mixed methods approach involving both questionnaires and focus groups to collect the views of different trainees and monitors to assess trainees' educational benefits and perceptions after progressing through different training programs. We used Objective Structured Clinical Examination (OSCE) and Likert scales to support thematic analysis of the responses to the questionnaires by trainees and monitors, respectively. Descriptive analyses were conducted using SPSS statistical software version 21.0. RESULTS Overall, a 3DP model of the liver is of great significance for improving trainees' understanding of surgical procedures and cooperation during operation. After viewing the personalized full-sized 3DP liver model, all trainees at the various levels exhibited significant improvements in their understanding of the key points of surgery (p < 0.05), especially regarding the planned surgical procedure and key details of the surgical procedures. More importantly, the trainees exhibited higher levels of satisfaction and self-confidence during the operation regardless of gender. However, with regard to gender, the results showed that the improvement of male trainees after training with the 3DP liver model was more significant than that of female trainees in understanding and cooperation during the surgical procedure, while no such trend was found with regard to their understanding of the base knowledge. CONCLUSION Trainees and monitors agreed that the use of 3DP liver models was acceptable. The improvement of the learning effect for practical skills and theoretical understanding after training with the 3DP liver models was significant. This study also indicated that training with personalized 3DP liver models can improve all trainees' presurgical understanding of liver tumours and surgery and males show more advantage in understanding and cooperation during the surgical procedure as compared to females. Full-sized realistic 3DP models of the liver are an effective auxiliary teaching tool for SBME teaching in Chinese continuing medical education.
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Affiliation(s)
- Guoqiang Bao
- Department of General Surgery, The Second Affiliated Hospital of Air Force Medical University, Xi'an, Shaanxi, 710038, China
| | - Ping Yang
- Department of General Surgery, The Second Affiliated Hospital of Air Force Medical University, Xi'an, Shaanxi, 710038, China
| | - Jiangpu Yi
- 3D Printing Research Center of Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Shujia Peng
- Department of General Surgery, The Second Affiliated Hospital of Air Force Medical University, Xi'an, Shaanxi, 710038, China
| | - Jiahe Liang
- 3D Printing Research Center of Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Yajie Li
- Xi 'an Ma Ke Medical Technology Ltd, Room 21516, Block C, Chaoyang International Plaza, Xi'an, Shaanxi, China
| | - Dian Guo
- Xi 'an Ma Ke Medical Technology Ltd, Room 21516, Block C, Chaoyang International Plaza, Xi'an, Shaanxi, China
| | - Haoran Li
- Department of General Surgery, The Second Affiliated Hospital of Air Force Medical University, Xi'an, Shaanxi, 710038, China
| | - Kejun Ma
- Xi 'an Ma Ke Medical Technology Ltd, Room 21516, Block C, Chaoyang International Plaza, Xi'an, Shaanxi, China
| | - Zhenyu Yang
- Department of General Surgery, The Second Affiliated Hospital of Air Force Medical University, Xi'an, Shaanxi, 710038, China.
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Laparoscopic Microwave Ablation: Which Technologies Improve the Results. Cancers (Basel) 2023; 15:cancers15061814. [PMID: 36980701 PMCID: PMC10046461 DOI: 10.3390/cancers15061814] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Liver resection is the best treatment for hepatocellular carcinoma (HCC) when resectable. Unfortunately, many patients with HCC cannot undergo liver resection. Percutaneous thermoablation represents a valid alternative for inoperable neoplasms and for small HCCs, but it is not always possible to accomplish it. In cases where the percutaneous approach is not feasible (not a visible lesion or in hazardous locations), laparoscopic thermoablation may be indicated. HCC diagnosis is commonly obtained from imaging modalities, such as CT and MRI, However, the interpretation of radiological images, which have a two-dimensional appearance, during the surgical procedure and in particular during laparoscopy, can be very difficult in many cases for the surgeon who has to treat the tumor in a three-dimensional environment. In recent years, more technologies have helped surgeons to improve the results after ablative treatments. The three-dimensional reconstruction of the radiological images has allowed the surgeon to assess the exact position of the tumor both before the surgery (virtual reality) and during the surgery with immersive techniques (augmented reality). Furthermore, indocyanine green (ICG) fluorescence imaging seems to be a valid tool to enhance the precision of laparoscopic thermoablation. Finally, the association with laparoscopic ultrasound with contrast media could improve the localization and characteristics of tumor lesions. This article describes the use of hepatic three-dimensional modeling, ICG fluorescence imaging and laparoscopic ultrasound examination, convenient for improving the preoperative surgical preparation for personalized laparoscopic approach.
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Hou JX, Deng Z, Liu YY, Xu SK, Li ZX, Sun JC, Zhao MY. A Bibliometric Analysis of the Role of 3D Technology in Liver Cancer Resection. World J Surg 2023; 47:1548-1561. [PMID: 36882637 DOI: 10.1007/s00268-023-06950-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Liver cancer resection is an effective but complex way to treat liver cancer, and complex anatomy is one of the reasons for the difficulty of surgery. The use of 3D technology can help surgeons cope with this dilemma. This article intends to conduct a bibliometric analysis of the role of 3D technology in liver cancer resection. METHODS (TS = (3D) OR TS = (three-dimensional)) AND (TS = (((hepatic) OR (liver)) AND ((cancer) OR (tumor) OR (neoplasm)))) AND (TS = (excision) OR TS = (resection)) was used as a search strategy for data collection in the Web of Science (WoS) Core Collection. CiteSpace, Carrot2 and Microsoft Office Excel were used for data analysis. RESULTS Three hundred and eighty-eight relevant articles were obtained. Their annual and journal distribution maps were produced. Countries/regions and institutions collaboration, author collaboration, references co-citations and their clusters and keywords co-occurrences and their clusters were constructed. Carrot2 cluster analysis was performed. CONCLUSIONS There was an overall upward trend in the number of publications. China's contribution was greater, and the USA had greater influence. Southern Med Univ was the most influential institution. However, the cooperation between institutions still needs to be further strengthened. Surgical Endoscopy and Other Interventional Techniques was the most published journal. Couinaud C and Soyer P were the authors with the highest citations and centrality, respectively. "Liver planning software accurately predicts postoperative liver volume and measures early regeneration" was the most influential article. 3D printing, 3D CT and 3D reconstruction may be the mainstream of current research, and augmented reality (AR) may be a future hot spot.
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Affiliation(s)
- Jia-Xing Hou
- Department of Hepatopancreatobiliary Surgery, Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zhen Deng
- Department of Hepatopancreatobiliary Surgery, Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yan-Yu Liu
- Changsha Central Hospital, University of South China, Changsha, China
| | - Shao-Kang Xu
- Department of Hepatopancreatobiliary Surgery, Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zi-Xin Li
- Department of Hepatopancreatobiliary Surgery, Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ji-Chun Sun
- Department of Hepatopancreatobiliary Surgery, Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China.
| | - Ming-Yi Zhao
- Department of Hepatopancreatobiliary Surgery, Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China.
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Paradigm shift: should preoperative 3D reconstruction models become mandatory before hepatectomy for hepatocellular carcinoma (HCC)? Results of a multicenter prospective trial. HPB (Oxford) 2023; 25:293-300. [PMID: 36710089 DOI: 10.1016/j.hpb.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/16/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND A preoperative surgical strategy before hepatectomy for hepatocellular carcinoma is fundamental to minimize postoperative morbidity and mortality and to reach the best oncologic outcomes. Preoperative 3D reconstruction models may help to better choose the type of procedure to perform and possibly change the initially established plan based on conventional 2D imaging. METHODS A non-randomized multicenter prospective trial with 136 patients presenting with a resectable hepatocellular carcinoma who underwent open or minimally invasive liver resection. Measurement was based on the modification rate analysis between conventional 2D imaging (named "Plan A") and 3D model analysis ("Plan B"), and from Plan B to the final procedure performed (named "Plan C"). RESULTS The modification rate from Plan B to Plan C (18%) was less frequent than the modification from Plan A to Plan B (35%) (OR = 0.32 [0.15; 0.64]). Concerning secondary objectives, resection margins were underestimated in Plan B as compared to Plan C (-3.10 mm [-5.04; -1.15]). CONCLUSION Preoperative 3D imaging is associated with a better prediction of the performed surgical procedure for liver resections in HCC, as compared to classical 2D imaging.
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Giehl-Brown E, Dennler S, Garcia SA, Seppelt D, Oehme F, Schweipert J, Weitz J, Riediger C. 3D liver model-based surgical education improves preoperative decision-making and patient satisfaction-a randomized pilot trial. Surg Endosc 2023:10.1007/s00464-023-09915-w. [PMID: 36849565 PMCID: PMC9970129 DOI: 10.1007/s00464-023-09915-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 01/28/2023] [Indexed: 03/01/2023]
Abstract
OBJECTIVE Hepatobiliary surgery bares obstacles to informed consent for the patients due to its complexity and related risk of postoperative complications. 3D visualization of the liver has been proven to facilitate comprehension of the spatial relationship between anatomical structures and to assist in clinical decision-making. Our objective is to utilize individual 3D-printed liver models to enhance patient satisfaction with surgical education in hepatobiliary surgery. DESIGN, SETTING We conducted a prospective, randomized pilot study comparing 3D liver model-enhanced (3D-LiMo) surgical education against regular patient education during preoperative consultation at the department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Dresden, Germany. PARTICIPANTS Of 97 screened patients, undergoing hepatobiliary surgery, 40 patients were enrolled from July 2020 to January 2022. RESULTS The study population (n = 40) was predominantly of male gender (62.5%) with a median age of 65.2 years and a high prevalence of preexisting diseases. Underlying disease, warranting hepatobiliary surgery, was malignancy in the majority of cases (97.5%). Patients in the 3D-LiMo group were more likely to feel very thoroughly educated and exhibited a higher level of satisfaction following surgical education than the control group (80 vs. 55%, n.s.; 90 vs. 65%, n.s.; respectively). Applying 3D models was also associated with enhanced understanding of the underlying disease with regard to amount (100% vs. 70%, p = 0.020) and location of liver masses (95 vs. 65%, p = 0.044). 3D-LiMo patients also demonstrated enhanced understanding of the surgical procedure (80 vs. 55%, n.s.), leading to better awareness for the occurrence of postoperative complications (88.9, vs. 68.4%, p = 0.052). Adverse event profiles were similar. CONCLUSION In conclusion, individual 3D-printed liver models increase patient satisfaction with surgical education and facilitate patients' understanding of the surgical procedure as well as awareness of postoperative complications. Therefore, the study protocol is feasible to apply to an adequately powered, multicenter, randomized clinical trial with minor modifications.
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Affiliation(s)
- Esther Giehl-Brown
- grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.461742.20000 0000 8855 0365National Center for Tumor Diseases (NCT/UCC), Dresden, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.412282.f0000 0001 1091 2917Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.40602.300000 0001 2158 0612Helmholtz-Zentrum Dresden—Rossendorf (HZDR), Dresden, Germany
| | - Sandra Dennler
- grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.461742.20000 0000 8855 0365National Center for Tumor Diseases (NCT/UCC), Dresden, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.412282.f0000 0001 1091 2917Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.40602.300000 0001 2158 0612Helmholtz-Zentrum Dresden—Rossendorf (HZDR), Dresden, Germany
| | - Sebastián A. Garcia
- grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.461742.20000 0000 8855 0365National Center for Tumor Diseases (NCT/UCC), Dresden, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.412282.f0000 0001 1091 2917Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.40602.300000 0001 2158 0612Helmholtz-Zentrum Dresden—Rossendorf (HZDR), Dresden, Germany
| | - Danilo Seppelt
- grid.4488.00000 0001 2111 7257Department of Radiology, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Florian Oehme
- grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.461742.20000 0000 8855 0365National Center for Tumor Diseases (NCT/UCC), Dresden, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.412282.f0000 0001 1091 2917Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.40602.300000 0001 2158 0612Helmholtz-Zentrum Dresden—Rossendorf (HZDR), Dresden, Germany
| | - Johannes Schweipert
- grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.461742.20000 0000 8855 0365National Center for Tumor Diseases (NCT/UCC), Dresden, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.412282.f0000 0001 1091 2917Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.40602.300000 0001 2158 0612Helmholtz-Zentrum Dresden—Rossendorf (HZDR), Dresden, Germany
| | - Jürgen Weitz
- grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.461742.20000 0000 8855 0365National Center for Tumor Diseases (NCT/UCC), Dresden, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.412282.f0000 0001 1091 2917Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany ,grid.40602.300000 0001 2158 0612Helmholtz-Zentrum Dresden—Rossendorf (HZDR), Dresden, Germany
| | - Carina Riediger
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. .,National Center for Tumor Diseases (NCT/UCC), Dresden, Germany. .,German Cancer Research Center (DKFZ), Heidelberg, Germany. .,Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. .,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany.
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10
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A meta-analysis of the three-dimensional reconstruction visualization technology for hepatectomy. Asian J Surg 2023; 46:669-676. [PMID: 35843827 DOI: 10.1016/j.asjsur.2022.07.006] [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: 04/15/2022] [Revised: 06/05/2022] [Accepted: 07/06/2022] [Indexed: 02/08/2023] Open
Abstract
This meta-analysis was conducted to systematically evaluate the short-term efficacy and safety of the three-dimensional (3D) reconstruction visualization technology (3D-RVT) technique for hepatectomy. A systematic literature search was used to gather information on the 3D reconstruction visualization technology technique for hepatectomy from retrospective cohort studies and comparative studies. The retrieval period was up to March 2022. Publications and conference papers in English were manually searched and references in bibliographies traced. After evaluating the quality of selected studies, a meta-analysis was conducted using Review Manager 5.1 software. We included 12 studies comprising 2053 patients with liver disease. Our meta-results showed that 3D-RVT significantly shortened operation times [weighted mean differences (WMD) = -29.36; 95% confidence interval (CI): -55.20 to -3.51; P = 0.03], reduced intraoperative bleeding [WMD = -93.53; 95% CI: -152.32 to -34.73; P = 0.002], reduced blood transfusion volume [WMD = -66.06; 95% CI: -109.13 to -22.99; P = 0.003], and shortened hospital stays [WMD = -1.90; 95% CI: -3.05 to -0.74; P = 0.001]. Additionally, the technique reduced the use of hepatic inflow occlusion and avoided overall postoperative complications [odds ratio (OR) = 0.60; 95% CI: 0.46 to 0.79; P < 0.001]. 3D-RVT is safe and effective for liver surgery and provides safety assessments before anatomical hepatectomy.
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11
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Shahbaz M, Miao H, Farhaj Z, Gong X, Weikai S, Dong W, Jun N, Shuwei L, Yu D. Mixed reality navigation training system for liver surgery based on a high-definition human cross-sectional anatomy data set. Cancer Med 2023; 12:7992-8004. [PMID: 36607128 PMCID: PMC10134360 DOI: 10.1002/cam4.5583] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/24/2022] [Accepted: 12/17/2022] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES This study aims to use the three-dimensional (3D) mixed-reality model of liver, entailing complex intrahepatic systems and to deeply study the anatomical structures and to promote the training, diagnosis and treatment of liver diseases. METHODS Vascular perfusion human specimens were used for thin-layer frozen milling to obtain liver cross-sections. The 104-megapixel-high-definition cross sectional data set was established and registered to achieve structure identification and manual segmentation. The digital model was reconstructed and data was used to print a 3D hepatic model. The model was combined with HoloLens mixed reality technology to reflect the complex relationships of intrahepatic systems. We simulated 3D patient specific anatomy for identification and preoperative planning, conducted a questionnaire survey, and evaluated the results. RESULTS The 3D digital model and 1:1 transparent and colored model of liver established truly reflected intrahepatic vessels and their complex relationships. The reconstructed model imported into HoloLens could be accurately matched with the 3D model. Only 7.7% participants could identify accessory hepatic veins. The depth and spatial-relationship of intrahepatic structures were better understandable for 92%. The 100%, 84.6%, 69% and 84% believed the 3D models were useful in planning, safer surgical paths, reducing intraoperative complications and training of young surgeons respectively. CONCLUSIONS A detailed 3D model can be reconstructed using the higher quality cross-sectional anatomical data set. When combined with 3D printing and HoloLens technology, a novel hybrid-reality navigation-training system for liver surgery is created. Mixed Reality training is a worthy alternative to provide 3D information to clinicians and its possible application in surgery. This conclusion was obtained based on a questionnaire and evaluation. Surgeons with extensive experience in surgical operations perceived in the questionnaire that this technology might be useful in liver surgery, would help in precise preoperative planning, accurate intraoperative identification, and reduction of hepatic injury.
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Affiliation(s)
- Muhammad Shahbaz
- Department of Radiology, Qilu Hospital of Shandong UniversityJinanShandongChina
- Research Center for Sectional and Imaging AnatomyDigital Human Institute, School of Basic Medical Science, Shandong UniversityJinanShandongChina
- Department of General SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
| | - Huachun Miao
- Department of Anatomy, Wannan Medical CollegeWuhuAnhuiChina
| | - Zeeshan Farhaj
- Department of Cardiovascular Surgery, Shandong Qianfoshan Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Xin Gong
- Department of Anatomy, Wannan Medical CollegeWuhuAnhuiChina
| | - Sun Weikai
- Department of Radiology, Qilu Hospital of Shandong UniversityJinanShandongChina
| | - Wenqing Dong
- Department of Anatomy, Wannan Medical CollegeWuhuAnhuiChina
| | - Niu Jun
- Department of General SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
| | - Liu Shuwei
- Research Center for Sectional and Imaging AnatomyDigital Human Institute, School of Basic Medical Science, Shandong UniversityJinanShandongChina
| | - Dexin Yu
- Department of Radiology, Qilu Hospital of Shandong UniversityJinanShandongChina
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12
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Ruzzenente A, Alaimo L, Conci S, De Bellis M, Marchese A, Ciangherotti A, Campagnaro T, Guglielmi A. Hyper accuracy three-dimensional (HA3D™) technology for planning complex liver resections: a preliminary single center experience. Updates Surg 2023; 75:105-114. [PMID: 36006558 PMCID: PMC9834350 DOI: 10.1007/s13304-022-01365-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/17/2022] [Indexed: 01/16/2023]
Abstract
Three-dimensional visualization technology (3DVT) has been recently introduced to achieve a precise preoperative planning of liver surgery. The aim of this observational study was to assess the accuracy of 3DVT for complex liver resections. 3DVT with hyper accuracy three-dimensional (HA3D™) technology was introduced at our institution on February 2020. Anatomical characteristics were collected from two-dimensional imaging (2DI) and 3DVT, while intraoperative and postoperative outcomes were recorded prospectively. A total of 62 patients were enrolled into the study. 3DVT was able to study tumor extension and liver anatomy, identifying at least one vascular variation in 37 patients (59.7%). Future remnant liver volume (FRLV) was measured using 2DI and 3DVT. The paired samples t test assessed positive correlation between the two methods (p < 0.001). At least one vessel was suspected to be invaded by the tumor in 8 (15.7%) 2DI cases vs 16 (31.4%) 3DVT cases, respectively. During surgery, vascular invasion was detected in 17 patients (33.3%). A total of 73 surgical procedures were proposed basing on 2DI, including 2 alternatives for 16 patients. After 3DVT, the previously planned procedure was changed in 15 cases (29.4%), due to the clearer information provided. A total of 51 patients (82%) underwent surgery. The most frequent procedure was right hepatectomy (33.3%), followed by left hepatectomy (23.5%) and left trisectionectomy (13.7%). Vascular resection and reconstruction were performed in 10 patients (19.6%) and portal vein was resected in more than half of these cases (66.7%). 3DVT leads to a more detailed and tailored approach to complex liver surgery, improving surgeons' knowledge of liver anatomy and accuracy of liver resection.
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Affiliation(s)
- Andrea Ruzzenente
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy.
| | - Laura Alaimo
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
| | - Simone Conci
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
| | - Mario De Bellis
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
| | - Andrea Marchese
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
| | - Andrea Ciangherotti
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
| | - Tommaso Campagnaro
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
| | - Alfredo Guglielmi
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Division of General and Hepato-Biliary Surgery, University of Verona, P. le L.A. Scuro 10, 37134, Verona, Italy
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13
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Koea J, Chao P, Laurie M, Yeo N, Phang M, Srinivasa S. Hepatectomy and pancreatectomy: how we could do it. ANZ J Surg 2023; 93:339-341. [PMID: 36420858 DOI: 10.1111/ans.18174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/26/2022] [Accepted: 11/11/2022] [Indexed: 11/25/2022]
Abstract
Visible patient software provides surgeons and trainees with the opportunity to construct accurate three dimensional models of patients liver and pancreas which reflect tumour location and unique anatomical features. These can be used for operative planning, patient discussions, operative rehearsal and teaching as well as pre and postoperative briefings.
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Affiliation(s)
- Jonathan Koea
- Department of Surgery, North Shore Hospital and the University of Auckland, Auckland, New Zealand
| | - Phillip Chao
- Department of Surgery, North Shore Hospital and the University of Auckland, Auckland, New Zealand
| | - Malcom Laurie
- Department of Tech, MedTech Johnson and Johnson (New Zealand) Ltd, Auckland, New Zealand
| | - Nicholas Yeo
- Department of 3D Printing and Fabrication, 3DP Point of Care Johnson and Johnson (Singapore) Ltd, Singapore
| | - Melinda Phang
- Department of Digital Education, Digital Education ASPAC Johnson and Johnson (Australia) Ltd, Melbourne, Australia
| | - Sanket Srinivasa
- Department of Surgery, North Shore Hospital and the University of Auckland, Auckland, New Zealand
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14
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Anselmo A, Cascone C, Siragusa L, Sensi B, Materazzo M, Riccetti C, Bacchiocchi G, Ielpo B, Rosso E, Tisone G. Disappearing Colorectal Liver Metastases: Do We Really Need a Ghostbuster? Healthcare (Basel) 2022; 10:healthcare10101898. [PMID: 36292345 PMCID: PMC9602313 DOI: 10.3390/healthcare10101898] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/06/2022] [Accepted: 09/22/2022] [Indexed: 11/24/2022] Open
Abstract
The development of new systemic treatment strategies has resulted in a significant increase in the response rates of colorectal liver metastases (CRLM) in the last few years. Although the radiological response is a favorable prognostic factor, complete shrinkage of CRLM, known as disappearing liver metastases (DLM), presents a therapeutic dilemma, and proper management is still debated in the literature. In fact, DLM is not necessarily equal to cure, and when resected, pathological examination reveals in more than 80% of patients a variable percentage of the tumor as residual disease or early recurrence in situ. Moreover, while a higher incidence of intrahepatic recurrence is documented in small series when surgery is avoided, its clinical significance for long-term OS is still under investigation. In light of this, a multidisciplinary approach and, in particular, radiologists’ role is needed to assist the surgeon in the management of DLM, thanks to emerging technology and strategy. Therefore, the aim of this review is to provide an overview of the DLM phenomenon and current management.
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Affiliation(s)
- Alessandro Anselmo
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Chiara Cascone
- Department of Surgery, University Campus Bio-Medico di Roma, 00128 Roma, Italy
- Correspondence: ; Tel.: +39-348-445-7000
| | - Leandro Siragusa
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Bruno Sensi
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Marco Materazzo
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Camilla Riccetti
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Giulia Bacchiocchi
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Benedetto Ielpo
- Hepatobiliary and Pancreatic Surgery Unit, Hospital del Mar. Universitat Pompeu Fabra Barcelona, 08003 Barcelona, Spain
| | - Edoardo Rosso
- Unité des Maladies de l’Appareil Digestif et Endocrine, Centre Hospitalier de Luxembourg, 1210 Luxembourg, Luxembourg
| | - Giuseppe Tisone
- Department of Surgical Science, University of Rome “Tor Vergata”, 00133 Roma, Italy
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15
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Cheng J, Wang Z, Liu J, Dou C, Yao W, Zhang C. Value of 3D printing technology combined with indocyanine green fluorescent navigation in complex laparoscopic hepatectomy. PLoS One 2022; 17:e0272815. [PMID: 35951521 PMCID: PMC9371281 DOI: 10.1371/journal.pone.0272815] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 07/26/2022] [Indexed: 11/26/2022] Open
Abstract
Background Laparoscopic hepatectomy (LH) has achieved rapid progress over the last decade. However, it is still challenging to apply laparoscopy to lesions located in segments I, VII, VIII, and IVa and the hepatic hilar region due to difficulty operating around complex anatomical structures. In this study, we applied three-dimensional printing (3DP) and indocyanine green (ICG) fluorescence imaging technology to complex laparoscopic hepatectomy (CLH) to explore the effects and value of the modified procedure. Materials and methods From January 2019 to January 2021, 54 patients with complex hepatobiliary diseases underwent LH at our center. Clinical data were collected from these patients and retrospectively analyzed. Results A total of 30 patients underwent CLH using the conventional approach, whereas 24 cases received CLH with 3DP technology and ICG fluorescent navigation. Preoperative data were compared between the two groups. In the 3DP group, we modified the surgical strategy of four patients (4/24, 16.7%) due to real-time intraoperative navigation with 3DP and ICG fluorescent imaging technology. We did not modify the surgical strategy for any patient in the non-3DP group (P = 0.02). There were no significant differences between the non-3DP and 3DP groups regarding operating time (297.7±104.1 min vs. 328.8±110.9 min, P = 0.15), estimated blood loss (400±263.8 ml vs. 345.8±356.1 ml, P = 0.52), rate of conversion to laparotomy (3/30 vs. 2/24, P = 0.79), or pathological outcomes including the incidence of microscopical R0 margins (28/30 vs. 24/24, P = 0.57). Additionally, there were no significant differences in postoperative complications or recovery conditions between the two groups. No instances of 30- or 90-day mortality were observed. Conclusion The optimal surgical strategy for CLH can be chosen with the help of 3DP technology and ICG fluorescent navigation. This modified procedure is both safe and effective, but without improvement of intraoperative and short-term outcomes.
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Affiliation(s)
- Jian Cheng
- General Surgery, Cancer Center, Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Zhifei Wang
- General Surgery, Cancer Center, Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Jie Liu
- General Surgery, Cancer Center, Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Changwei Dou
- General Surgery, Cancer Center, Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Weifeng Yao
- General Surgery, Cancer Center, Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Chengwu Zhang
- General Surgery, Cancer Center, Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
- * E-mail:
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16
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Huber T, Huettl F, Hanke LI, Vradelis L, Heinrich S, Hansen C, Boedecker C, Lang H. Leberchirurgie 4.0 - OP-Planung, Volumetrie, Navigation und Virtuelle
Realität. Zentralbl Chir 2022; 147:361-368. [DOI: 10.1055/a-1844-0549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ZusammenfassungDurch die Optimierung der konservativen Behandlung, die Verbesserung der
bildgebenden Verfahren und die Weiterentwicklung der Operationstechniken haben
sich das operative Spektrum sowie der Maßstab für die Resektabilität in Bezug
auf die Leberchirurgie in den letzten Jahrzehnten deutlich verändert.Dank zahlreicher technischer Entwicklungen, insbesondere der 3-dimensionalen
Segmentierung, kann heutzutage die präoperative Planung und die Orientierung
während der Operation selbst, vor allem bei komplexen Eingriffen, unter
Berücksichtigung der patientenspezifischen Anatomie erleichtert werden.Neue Technologien wie 3-D-Druck, virtuelle und augmentierte Realität bieten
zusätzliche Darstellungsmöglichkeiten für die individuelle Anatomie.
Verschiedene intraoperative Navigationsmöglichkeiten sollen die präoperative
Planung im Operationssaal verfügbar machen, um so die Patientensicherheit zu
erhöhen.Dieser Übersichtsartikel soll einen Überblick über den gegenwärtigen Stand der
verfügbaren Technologien sowie einen Ausblick in den Operationssaal der Zukunft
geben.
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Affiliation(s)
- Tobias Huber
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
| | - Florentine Huettl
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
| | - Laura Isabel Hanke
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
| | - Lukas Vradelis
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
| | - Stefan Heinrich
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
| | - Christian Hansen
- Fakultät für Informatik, Otto von Guericke Universität
Magdeburg, Magdeburg, Deutschland
| | - Christian Boedecker
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
| | - Hauke Lang
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie,
Universitätsmedizin Mainz, Mainz, Deutschland
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17
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Ahmed F, Jahagirdar V, Gudapati S, Mouchli M. Three-dimensional visualization and virtual reality simulation role in hepatic surgery: Further research warranted. World J Gastrointest Surg 2022; 14:723-726. [PMID: 36158284 PMCID: PMC9353753 DOI: 10.4240/wjgs.v14.i7.723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/05/2022] [Accepted: 06/26/2022] [Indexed: 02/06/2023] Open
Abstract
Artificial intelligence (AI) is the study of algorithms that enable machines to analyze and execute cognitive activities including problem solving, object and word recognition, reduce the inevitable errors to improve the diagnostic accuracy, and decision-making. Hepatobiliary procedures are technically complex and the use of AI in perioperative management can improve patient outcomes as discussed below. Three-dimensional (3D) reconstruction of images obtained via ultrasound, computed tomography scan or magnetic resonance imaging, can help surgeons better visualize the surgical sites with added depth perception. Pre-operative 3D planning is associated with lesser operative time and intraoperative complications. Also, a more accurate assessment is noted, which leads to fewer operative complications. Images can be converted into physical models with 3D printing technology, which can be of educational value to students and trainees. 3D images can be combined to provide 3D visualization, which is used for preoperative navigation, allowing for more precise localization of tumors and vessels. Nevertheless, AI enables surgeons to provide better, personalized care for each patient.
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Affiliation(s)
- Faiza Ahmed
- Division of Clinical and Translational Research, Larkin Community Hospital, South Miami, FL 33143, United States
| | - Vinay Jahagirdar
- Department of Internal Medicine, University of Missouri Kansas City School of Medicine, Kansas City, MO 64108, United States
| | - Sravya Gudapati
- Department of Gastroenterology, The Illinois Center for Digestive and Liver Health, Chicago, IL 60660, United States
| | - Mohamad Mouchli
- Department of Gastroenterology, Cleveland Clinic, Cleveland, OH 44195, United States
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18
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Fletcher J, Miskovic D. The Mesentery in Complete Mesocolic Excision. Clin Colon Rectal Surg 2022; 35:288-297. [PMID: 35966980 PMCID: PMC9365457 DOI: 10.1055/s-0042-1743430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The following article summarizes technical aspects of how to operate in the mesentery during complete mesocolic excision (CME). Increasingly, CME is being adopted and as such it is important to establish the anatomical basis of the techniques involved. This review thus serves to provide that foundation and explains the surgical techniques built on it.
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Affiliation(s)
- Jordan Fletcher
- Department of Colorectal Surgery, St. Mark's Hospital, London, United Kingdom
| | - Danilo Miskovic
- Department of Colorectal Surgery, St. Mark's Hospital, London, United Kingdom
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19
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Yuan M, Xiao S, Yang J, Wu J, Hou J. A study of liver biomechanical responses under classical impacts for vehicle occupants. J MECH MED BIOL 2022. [DOI: 10.1142/s0219519422500567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Zhang CY, Fu CP, Li XY, Lu XC, Hu LG, Kankala RK, Wang SB, Chen AZ. Three-Dimensional Bioprinting of Decellularized Extracellular Matrix-Based Bioinks for Tissue Engineering. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113442. [PMID: 35684380 PMCID: PMC9182049 DOI: 10.3390/molecules27113442] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 01/01/2023]
Abstract
Three-dimensional (3D) bioprinting is one of the most promising additive manufacturing technologies for fabricating various biomimetic architectures of tissues and organs. In this context, the bioink, a critical element for biofabrication, is a mixture of biomaterials and living cells used in 3D printing to create cell-laden structures. Recently, decellularized extracellular matrix (dECM)-based bioinks derived from natural tissues have garnered enormous attention from researchers due to their unique and complex biochemical properties. This review initially presents the details of the natural ECM and its role in cell growth and metabolism. Further, we briefly emphasize the commonly used decellularization treatment procedures and subsequent evaluations for the quality control of the dECM. In addition, we summarize some of the common bioink preparation strategies, the 3D bioprinting approaches, and the applicability of 3D-printed dECM bioinks to tissue engineering. Finally, we present some of the challenges in this field and the prospects for future development.
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Affiliation(s)
- Chun-Yang Zhang
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
| | - Chao-Ping Fu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
- Correspondence: (C.-P.F.); (A.-Z.C.)
| | - Xiong-Ya Li
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
| | - Xiao-Chang Lu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
| | - Long-Ge Hu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
| | - Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
| | - Shi-Bin Wang
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
| | - Ai-Zheng Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China; (C.-Y.Z.); (X.-Y.L.); (X.-C.L.); (L.-G.H.); (R.K.K.); (S.-B.W.)
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, China
- Correspondence: (C.-P.F.); (A.-Z.C.)
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Christou CD, Tsoulfas G. Role of three-dimensional printing and artificial intelligence in the management of hepatocellular carcinoma: Challenges and opportunities. World J Gastrointest Oncol 2022; 14:765-793. [PMID: 35582107 PMCID: PMC9048537 DOI: 10.4251/wjgo.v14.i4.765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/24/2021] [Accepted: 03/27/2022] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) constitutes the fifth most frequent malignancy worldwide and the third most frequent cause of cancer-related deaths. Currently, treatment selection is based on the stage of the disease. Emerging fields such as three-dimensional (3D) printing, 3D bioprinting, artificial intelligence (AI), and machine learning (ML) could lead to evidence-based, individualized management of HCC. In this review, we comprehensively report the current applications of 3D printing, 3D bioprinting, and AI/ML-based models in HCC management; we outline the significant challenges to the broad use of these novel technologies in the clinical setting with the goal of identifying means to overcome them, and finally, we discuss the opportunities that arise from these applications. Notably, regarding 3D printing and bioprinting-related challenges, we elaborate on cost and cost-effectiveness, cell sourcing, cell viability, safety, accessibility, regulation, and legal and ethical concerns. Similarly, regarding AI/ML-related challenges, we elaborate on intellectual property, liability, intrinsic biases, data protection, cybersecurity, ethical challenges, and transparency. Our findings show that AI and 3D printing applications in HCC management and healthcare, in general, are steadily expanding; thus, these technologies will be integrated into the clinical setting sooner or later. Therefore, we believe that physicians need to become familiar with these technologies and prepare to engage with them constructively.
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Affiliation(s)
- Chrysanthos D Christou
- Department of Transplantation Surgery, Hippokration General Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54622, Greece
| | - Georgios Tsoulfas
- Department of Transplantation Surgery, Hippokration General Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54622, Greece
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Zhang H, He Y, Chen Y, Liu J, Jin Q, Xu S, Fu X, Qiao J, Yu B, Niu F. Virtual Reality and Three-Dimensional Printed Models Improve the Morphological Understanding in Learning Mandibular Sagittal Split Ramus Osteotomy: A Randomized Controlled Study. Front Surg 2022; 8:705532. [PMID: 35004831 PMCID: PMC8727369 DOI: 10.3389/fsurg.2021.705532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 12/01/2021] [Indexed: 01/17/2023] Open
Abstract
Background: The mandibular sagittal split ramus osteotomy (SSRO) is a routine operation performed to correct mandibular deformity including mandibular retrusion, protrusion, deficiency, and asymmetry. The SSRO remains a challenging procedure for junior surgeons due to a lack of adequate morphological knowledge necessary for success in clinical practice. Virtual reality (VR) and three-dimensional printed (3DP) models have been widely applied in anatomy education. The present randomized, controlled study was performed to evaluate the effect of traditional educational instruments, VR models, and 3DP models on junior surgeons learning the morphological information required to perform SSRO. Methods: Eighty-one participants were randomly assigned to three learning groups: Control, VR, and 3DP. Objective and subjective tests were used to evaluate the learning effectiveness of each learning instrument. In the objective test, participants were asked to identify 10 anatomical landmarks on normal and deformed models, draw the osteotomy line, and determine the description of SSRO. In the subjective test, participants were asked to provide feedback regarding their subjective feelings about the learning instrument used in their group. Results: The objective test results showed that the VR and 3DP groups achieved better accuracy in drawing the osteotomy line (p = 0.027) and determining the description of SSRO (p = 0.023) than the Control group. However, there was no significant difference among the three groups regarding the identification of anatomical landmarks. The VR and 3DP groups gave satisfactory subjective feedback about the usefulness in learning, good presentation, and enjoyment. The Control and 3DP groups reported positive feelings about ease of use. Conclusion: The current findings suggest that VR and 3DP models were effective instruments that assisted in the morphological understanding of SSRO-related anatomical structures. Furthermore, 3DP models may be a promising supplementary instrument to bridge the gap between conventional learning and clinical practice.
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Affiliation(s)
- Henglei Zhang
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yu He
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ying Chen
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jianfeng Liu
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qi Jin
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shixing Xu
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xi Fu
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jia Qiao
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Bing Yu
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Feng Niu
- Department of Craniomaxillofacila Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wang Y, Cao D, Chen SL, Li YM, Zheng YW, Ohkohchi N. Current trends in three-dimensional visualization and real-time navigation as well as robot-assisted technologies in hepatobiliary surgery. World J Gastrointest Surg 2021; 13:904-922. [PMID: 34621469 PMCID: PMC8462083 DOI: 10.4240/wjgs.v13.i9.904] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/19/2021] [Accepted: 08/02/2021] [Indexed: 02/06/2023] Open
Abstract
With the continuous development of digital medicine, minimally invasive precision and safety have become the primary development trends in hepatobiliary surgery. Due to the specificity and complexity of hepatobiliary surgery, traditional preoperative imaging techniques such as computed tomography and magnetic resonance imaging cannot meet the need for identification of fine anatomical regions. Imaging-based three-dimensional (3D) reconstruction, virtual simulation of surgery and 3D printing optimize the surgical plan through preoperative assessment, improving the controllability and safety of intraoperative operations, and in difficult-to-reach areas of the posterior and superior liver, assistive robots reproduce the surgeon’s natural movements with stable cameras, reducing natural vibrations. Electromagnetic navigation in abdominal surgery solves the problem of conventional surgery still relying on direct visual observation or preoperative image assessment. We summarize and compare these recent trends in digital medical solutions for the future development and refinement of digital medicine in hepatobiliary surgery.
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Affiliation(s)
- Yun Wang
- Institute of Regenerative Medicine, and Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Di Cao
- Institute of Regenerative Medicine, and Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Si-Lin Chen
- Institute of Regenerative Medicine, and Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Yu-Mei Li
- Institute of Regenerative Medicine, and Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Yun-Wen Zheng
- Institute of Regenerative Medicine, and Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Ibaraki, Japan
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, and School of Biotechnology and Heath Sciences, Wuyi University, Jiangmen 529020, Guangdong Province, China
- School of Medicine, Yokohama City University, Yokohama 234-0006, Kanagawa, Japan
| | - Nobuhiro Ohkohchi
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Ibaraki, Japan
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Jin Z, Li Y, Yu K, Liu L, Fu J, Yao X, Zhang A, He Y. 3D Printing of Physical Organ Models: Recent Developments and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101394. [PMID: 34240580 PMCID: PMC8425903 DOI: 10.1002/advs.202101394] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/14/2021] [Indexed: 05/05/2023]
Abstract
Physical organ models are the objects that replicate the patient-specific anatomy and have played important roles in modern medical diagnosis and disease treatment. 3D printing, as a powerful multi-function manufacturing technology, breaks the limitations of traditional methods and provides a great potential for manufacturing organ models. However, the clinical application of organ model is still in small scale, facing the challenges including high cost, poor mimicking performance and insufficient accuracy. In this review, the mainstream 3D printing technologies are introduced, and the existing manufacturing methods are divided into "directly printing" and "indirectly printing", with an emphasis on choosing suitable techniques and materials. This review also summarizes the ideas to address these challenges and focuses on three points: 1) what are the characteristics and requirements of organ models in different application scenarios, 2) how to choose the suitable 3D printing methods and materials according to different application categories, and 3) how to reduce the cost of organ models and make the process simple and convenient. Moreover, the state-of-the-art in organ models are summarized and the contribution of 3D printed organ models to various surgical procedures is highlighted. Finally, current limitations, evaluation criteria and future perspectives for this emerging area are discussed.
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Affiliation(s)
- Zhongboyu Jin
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Yuanrong Li
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Kang Yu
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Linxiang Liu
- Zhejiang University HospitalZhejiang UniversityHangzhouZhejiang310027China
| | - Jianzhong Fu
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Xinhua Yao
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Aiguo Zhang
- Department of OrthopedicsWuxi Children's Hospital affiliated to Nanjing Medical UniversityWuxiJiangsu214023China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of Materials Processing and MoldZhengzhou UniversityZhengzhou450002China
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Huettl F, Saalfeld P, Hansen C, Preim B, Poplawski A, Kneist W, Lang H, Huber T. Virtual reality and 3D printing improve preoperative visualization of 3D liver reconstructions-results from a preclinical comparison of presentation modalities and user's preference. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1074. [PMID: 34422986 PMCID: PMC8339861 DOI: 10.21037/atm-21-512] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/17/2021] [Indexed: 12/20/2022]
Abstract
Background Preoperative three-dimensional (3D) reconstructions for liver surgery planning have been shown to be effective in reduction of blood loss and operation time. However, the role of the ‘presentation modality’ is not well investigated. We present the first study to compare 3D PDFs, 3D printed models (PR) and virtual reality (VR) 3D models with regard to anatomical orientation and personal preferences in a high volume liver surgery center. Methods Thirty participants, 10 medical students, 10 residents, 5 fellows and 5 hepatopancreatobiliary (HPB) experts, assigned the tumor-bearing segments of 20 different patient’s individual liver reconstructions. Liver models were presented in a random order in all modalities. Time needed to specify the tumor location was recorded. In addition, a score was calculated factoring in correct, wrong and missing segment assignments. Furthermore, standardized test/questionnaires for spatial thinking and seeing, vegetative side effects and usability were completed. Results Participants named significantly more correct segments in VR (P=0.040) or PR (P=0.036) compared to PDF. Tumor assignment was significantly shorter with 3D PR models compared to 3D PDF (P<0.001) or VR application (P<0.001). Regardless of the modality, HPB experts were significantly faster (24±8 vs. 35±11 sec; P=0.014) and more often correct (0.87±0.12 vs. 0.83±0.15; P<0.001) than medical students. Test results for spatial thinking and seeing had no influence on time but on correctness of tumor assignment. Regarding usability and user experience the VR application achieved the highest scores without causing significant vegetative symptoms and was also the most preferred method (n=22, 73.3%) because of the multiple functions like scaling and change of transparency. Ninety percent (n=27) stated that this application can positively influence the operation planning. Conclusions 3D PR models and 3D VR models enable a better and partially faster anatomical orientation than reconstructions presented as 3D PDFs. User’s preferred the VR application over the PR models and PDF. A prospective trial is needed to evaluate the different presentation modalities regarding intra- and postoperative outcomes.
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Affiliation(s)
- Florentine Huettl
- Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Patrick Saalfeld
- Institute of Simulation and Graphics, Faculty of Computer Science, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Christian Hansen
- Institute of Simulation and Graphics, Faculty of Computer Science, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Bernhard Preim
- Institute of Simulation and Graphics, Faculty of Computer Science, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Alicia Poplawski
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Werner Kneist
- Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,Department of General and Visceral Surgery, St. Georg Hospital, Eisenach, Germany
| | - Hauke Lang
- Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tobias Huber
- Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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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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Shigi A, Oka K, Tanaka H, Shiode R, Murase T. Utility of a 3-dimensionally printed color-coded bone model to visualize impinging osteophytes for arthroscopic débridement arthroplasty in elbow osteoarthritis. J Shoulder Elbow Surg 2021; 30:1152-1158. [PMID: 33486060 DOI: 10.1016/j.jse.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 11/28/2020] [Accepted: 12/05/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND The identification and precise removal of bony impingement lesions during arthroscopic débridement arthroplasty for elbow osteoarthritis require a high level of experience and surgical skill. We have developed a new technique to identify impinging osteophytes on a computer display by simulating elbow motion using the multiple positions of 3-dimensional (3D) elbow models created from computed tomography data. Moreover, an actual color-coded 3D model indicating the impinging osteophytes was created with a 3D printer and was used as an intraoperative reference tool. This study aimed to verify the efficacy of these new technologies in arthroscopic débridement for elbow osteoarthritis. METHODS We retrospectively studied 16 patients treated with arthroscopic débridement for elbow osteoarthritis after a preoperative computer simulation. Patients who underwent surgery with only the preoperative simulation were assigned to group 1 (n = 8), whereas those on whom we operated using a color-coded 3D bone model created from the preoperative simulation were assigned to group 2 (n = 8). Elbow extension and flexion range of motion (ROM), the Mayo Elbow Performance Score (MEPS), and the severity of osteoarthritis were compared between the groups. RESULTS Although preoperative elbow flexion and MEPS values were not significantly different between the groups, preoperative extension was significantly more restricted in group 2 than in group 1 (P = .0131). Group 2 tended to include more severe cases according to the Hastings-Rettig classification (P = .0693). ROM and MEPS values were improved in all cases. No significant differences in postoperative ROM or MEPS values were observed between the groups. There were no significant differences in the improvement in ROM or MEPS values between the 2 groups. CONCLUSIONS The use of preoperative simulation and a color-coded bone model could help to achieve as good postoperative ROM and MEPS values for advanced elbow osteoarthritis as those for early and intermediate stages.
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Affiliation(s)
| | - Kunihiro Oka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan.
| | - Hiroyuki Tanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Ryoya Shiode
- Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Tsuyoshi Murase
- Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
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Using virtual 3D-models in surgical planning: workflow of an immersive virtual reality application in liver surgery. Langenbecks Arch Surg 2021; 406:911-915. [PMID: 33710462 PMCID: PMC8106601 DOI: 10.1007/s00423-021-02127-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/08/2021] [Indexed: 12/21/2022]
Abstract
Purpose Three-dimensional (3D) surgical planning is widely accepted in liver surgery. Currently, the 3D reconstructions are usually presented as 3D PDF data on regular monitors. 3D-printed liver models are sometimes used for education and planning. Methods We developed an immersive virtual reality (VR) application that enables the presentation of preoperative 3D models. The 3D reconstructions are exported as STL files and easily imported into the application, which creates the virtual model automatically. The presentation is possible in “OpenVR”-ready VR headsets. To interact with the 3D liver model, VR controllers are used. Scaling is possible, as well as changing the opacity from invisible over transparent to fully opaque. In addition, the surgeon can draw potential resection lines on the surface of the liver. All these functions can be used in a single or multi-user mode. Results Five highly experienced HPB surgeons of our department evaluated the VR application after using it for the very first time and considered it helpful according to the “System Usability Scale” (SUS) with a score of 76.6%. Especially with the subitem “necessary learning effort,” it was shown that the application is easy to use. Conclusion We introduce an immersive, interactive presentation of medical volume data for preoperative 3D liver surgery planning. The application is easy to use and may have advantages over 3D PDF and 3D print in preoperative liver surgery planning. Prospective trials are needed to evaluate the optimal presentation mode of 3D liver models. Supplementary Information The online version contains supplementary material available at 10.1007/s00423-021-02127-7.
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Abstract
OBJECTIVE We present a series of cases where we used 3D printing in planning of complex liver surgery. BACKGROUND In liver surgery, three-dimensional reconstruction of the liver anatomy, in particular of vascular structures, has shown to be helpful in operation planning. So far, 3D printing has been used for medical applications only rarely. METHODS AND PATIENTS From December 2017 to December 2019, in 10 cases where surgery was assumed to be challenging operation planning was performed using full size 3D prints in addition to standard 3 phase CT scans. Models included transparent parenchyma, hepatic veins, vena cava, portal vein, hepatic artery, (biliary tree if requested), and tumors. In 7/10 cases vascular reconstructions were needed during the procedure. Nonstructured feedback of the surgical team revealed that the major benefit was visualization of the critical areas of vascular reconstruction, the expected dimensions of tangential vascular infiltration and the planning of reconstruction. In the multifocal tumors, 3D prints were considered to be helpful for intraoperative orientation to detect metastases and to improve planning of the resection. CONCLUSIONS In complex liver surgery with potential need for vascular reconstructions operation planning may be optimized using a 3D printed liver model. Prospective studies are needed to evaluate the clinical impact of 3D printing in liver surgery compared to other 3D visualizations.
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Additive Manufacturing Processes in Medical Applications. MATERIALS 2021; 14:ma14010191. [PMID: 33401601 PMCID: PMC7796413 DOI: 10.3390/ma14010191] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/16/2020] [Accepted: 12/27/2020] [Indexed: 12/29/2022]
Abstract
Additive manufacturing (AM, 3D printing) is used in many fields and different industries. In the medical and dental field, every patient is unique and, therefore, AM has significant potential in personalized and customized solutions. This review explores what additive manufacturing processes and materials are utilized in medical and dental applications, especially focusing on processes that are less commonly used. The processes are categorized in ISO/ASTM process classes: powder bed fusion, material extrusion, VAT photopolymerization, material jetting, binder jetting, sheet lamination and directed energy deposition combined with classification of medical applications of AM. Based on the findings, it seems that directed energy deposition is utilized rarely only in implants and sheet lamination rarely for medical models or phantoms. Powder bed fusion, material extrusion and VAT photopolymerization are utilized in all categories. Material jetting is not used for implants and biomanufacturing, and binder jetting is not utilized for tools, instruments and parts for medical devices. The most common materials are thermoplastics, photopolymers and metals such as titanium alloys. If standard terminology of AM would be followed, this would allow a more systematic review of the utilization of different AM processes. Current development in binder jetting would allow more possibilities in the future.
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Chedid VG, Kamath AA, M Knudsen J, Frimannsdottir K, Yost KJ, R Geske J, Morris JM, Taner T, Matsumoto JM, Kamath PS. Three-Dimensional-Printed Liver Model Helps Learners Identify Hepatic Subsegments: A Randomized-Controlled Cross-Over Trial. Am J Gastroenterol 2020; 115:1906-1910. [PMID: 33156110 DOI: 10.14309/ajg.0000000000000958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The purpose of this study was to find out whether 3-dimensional (3D)-printed models improved the learners' ability to identify liver segments. METHODS A total of 116 physicians from 3 disciplines were tested in a cross-over trial at baseline and after teaching with 3D models and 2-dimensional (2D) images. Adjusted multilevel-mixed models were used to compare scores at baseline and after 3D and 2D. RESULTS Accuracy in identifying hepatic segments was higher with 3D first than 2D (77% vs 69%; P = 0.05) and not significantly improved by a combination of 3D and 2D. Increased confidence in segment identification was highest in trainees after 3D (P = 0.04). DISCUSSION 3D-printed models facilitate learning hepatic segmental anatomy.
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Affiliation(s)
- Victor G Chedid
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Amika A Kamath
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - John M Knudsen
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Katrin Frimannsdottir
- Mayo Clinic Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Kathleen J Yost
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - Jennifer R Geske
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Timucin Taner
- Division of Transplantation Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Patrick S Kamath
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Allaire M, Goumard C, Lim C, Le Cleach A, Wagner M, Scatton O. New frontiers in liver resection for hepatocellular carcinoma. JHEP Rep 2020; 2:100134. [PMID: 32695968 PMCID: PMC7360891 DOI: 10.1016/j.jhepr.2020.100134] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 04/23/2020] [Accepted: 05/15/2020] [Indexed: 02/08/2023] Open
Abstract
Liver resection is one of the main curative options for early hepatocellular carcinoma (HCC) in patients with cirrhosis and is the treatment of choice in non-cirrhotic patients. However, careful patient selection is required to balance the risk of postoperative liver failure and the potential benefit on long-term outcomes. In the last decades, improved surgical techniques and perioperative management, as well as better patient selection, have enabled the indications for liver resection to be expanded. In this review, we aim to describe the main indications for liver resection in the management of HCC, its role compared to percutaneous ablation and liver transplantation in the therapeutic algorithm, as well as the recent advances in liver surgery that could be used to improve the prognosis of patients with HCC.
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Key Words
- ALPPS, associating liver partition and portal vein ligation for staged hepatectomy
- BCLC, Barcelona Clinic liver cancer
- CSPH, clinically significant portal hypertension
- DFS, disease-free survival
- GSA, galactosyl serum albumin
- HCC
- HCC, hepatocellular carcinoma
- HVGP, hepatic venous pression gradient
- ICG, indocyanine green
- ICG-R15, hepatic clearance of ICG 15 minutes after its intravenous administration
- IL-6, interleukin 6
- LR, liver resection
- LSM, liver stiffness measurement
- Laparoscopy
- Liver resection
- MELD, model for end-stage liver disease
- NAFLD, non-alcoholic fatty liver disease
- OS, overall survival
- PVL, portal vein ligation
- PVTT, tumour-related portal vein thrombosis
- RFA, radiofrequency ablation
- SSM, spleen stiffness measurement
- Surgery
- TACE, transarterial chemoembolisation
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Affiliation(s)
- Manon Allaire
- Sorbonne Université, Service d'Hépatologie, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, AP-HP, Paris, France
- Inserm U1149, Centre de Recherche sur l'Inflammation, France Faculté de Médecine Xavier Bichat, Université Paris Diderot, Paris, France
| | - Claire Goumard
- Sorbonne Université, CRSA, Service de chirurgie digestive, hépato-biliaire et transplantation hépatique, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, AP-HP, Paris, France
| | - Chetana Lim
- Sorbonne Université, CRSA, Service de chirurgie digestive, hépato-biliaire et transplantation hépatique, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, AP-HP, Paris, France
| | - Aline Le Cleach
- Sorbonne Université, Service d'Hépatologie, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, AP-HP, Paris, France
| | - Mathilde Wagner
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale (LIB), Service de Radiologie, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, AP-HP, Paris, France
| | - Olivier Scatton
- Sorbonne Université, CRSA, Service de chirurgie digestive, hépato-biliaire et transplantation hépatique, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, AP-HP, Paris, France
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Rashidian N, Vierstraete M, Alseidi A, Troisi RI, Willaert W. Surgical education interventions in liver surgery: a systematic review. Updates Surg 2020; 72:583-594. [DOI: 10.1007/s13304-020-00766-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 04/11/2020] [Indexed: 12/18/2022]
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Surgical Management of Hepatoblastoma and Recent Advances. Cancers (Basel) 2019; 11:cancers11121944. [PMID: 31817219 PMCID: PMC6966548 DOI: 10.3390/cancers11121944] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/18/2019] [Accepted: 11/29/2019] [Indexed: 12/29/2022] Open
Abstract
Hepatoblastoma is the most common childhood liver malignancy. The management of hepatoblastoma requires multidisciplinary efforts. The five-year overall survival is approximately 80% in developed countries. Surgery remains the mainstay of treatment for hepatoblastoma, and meticulous techniques must be employed to ensure safe and effective local control surgeries. Additionally, there have been several advances from both pediatric and adult literature in the way liver tumor surgery is performed. In this review, we highlight important aspects of liver surgery for hepatoblastoma, the management of metastatic disease, and the most current technical advances in performing these procedures in a safe and effective manner.
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Park JH, Lee JR. Developing Fall-impact Protection Pad with 3D Mesh Curved Surface Structure using 3D Printing Technology. Polymers (Basel) 2019; 11:polym11111800. [PMID: 31684002 PMCID: PMC6918129 DOI: 10.3390/polym11111800] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 01/17/2023] Open
Abstract
In this study, we present the development of fall-impact protection pads for elderly people using three-dimensional (3D) printing technology. To develop fall-impact protection clothing, it is important to maintain the functionality of the protection pad while ensuring that its effectiveness and appearance remain optimal in the process of inserting it. Therefore, this study explores the benefit of exploiting 3D scan data of the human body using 3D printing technology to develop a fall-impact protection pad that is highly suited to the human body shape. The purpose of this study was to present a 3D modeling process for creating curved protective pads comprising a hexagonal mesh with a spacer fabric structure and to verify the impact protection performance by printing curved pads. To this end, we set up a section that includes pads in the 3D human body scan data and extracted body surface information to be applied in the generation of the pad surface. The sheet-shaped hexagonal mesh structure was cut and separated according to the pad outline, and then deformed according to the curved surface of the human body. The pads were printed, and their protection performance was evaluated; a 79.2–81.8% reduction in impact force was observed compared to similar cases in which the pads were not used.
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Affiliation(s)
- Jung Hyun Park
- Department of Clothing and Textiles, Pusan National University, Busan 46241, Korea.
| | - Jeong Ran Lee
- Department of Clothing and Textiles, Pusan National University, Busan 46241, Korea.
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Development and Evaluation of Fall Impact Protection Pads Using Additive Manufacturing. MATERIALS 2019; 12:ma12203440. [PMID: 31640163 PMCID: PMC6829214 DOI: 10.3390/ma12203440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/17/2023]
Abstract
This paper presents the development and evaluation of fall-impact protection pants for elderly women using additive manufacturing. The protective pants were designed incorporating a protective pad in the hip area to reduce the impact of falls on the human body. The protective pad is a 3D mesh structure with a curved surface to fit the human body. Pads printed with flexible thermoplastic polyurethane were combined with foam to create the final pad. The impact-absorbing performance of the pad was verified through physical impact experiments. When dropping a bowling ball onto the protective pad from heights of 15, 20, and 25 cm, the protective pad was found to reduce the impact force by more than 82% in all cases. The impact force was less than the average fracture threshold of 3472 N. A subject group and an expert group evaluated the appearance, pad characteristics, motion functionality, and the wearability of the protection pants. Despite the insertion of a pad, the pants appeared natural and had a good fit. The pads were evaluated as being well-designed in terms of their position, shape, area, thickness, weight, flexibility, ease of insertion, and ease of use. Users were comfortable performing various motions when wearing the designed protective clothing. Therefore, this work can be considered to have developed protective clothing that provides satisfactory impact-protection performance and comfort thereby advancing the possibility of applying additive manufacturing to the creation of functional garments.
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Bangeas P, Tsioukas V, Papadopoulos VN, Tsoulfas G. Role of innovative 3D printing models in the management of hepatobiliary malignancies. World J Hepatol 2019; 11:574-585. [PMID: 31388399 PMCID: PMC6669192 DOI: 10.4254/wjh.v11.i7.574] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 06/12/2019] [Accepted: 06/27/2019] [Indexed: 02/06/2023] Open
Abstract
Three-dimensional (3D) printing has recently emerged as a new technique in various liver-related surgical fields. There are currently only a few systematic reviews that summarize the evidence of its impact. In order to construct a systematic literature review of the applications and effects of 3D printing in liver surgery, we searched the PubMed, Embase and ScienceDirect databases for relevant titles, according to the PRISMA statement guidelines. We retrieved 162 titles, of which 32 met the inclusion criteria and are reported. The leading application of 3D printing in liver surgery is for preoperative planning. 3D printing techniques seem to be beneficial for preoperative planning and educational tools, despite their cost and time requirements, but this conclusion must be confirmed by additional randomized controlled trials.
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Affiliation(s)
- Peter Bangeas
- Department of Surgery, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Vassilios Tsioukas
- Department of School of Rural and Surveying Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | | | - Georgios Tsoulfas
- Department of Surgery, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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Wellens LM, Meulstee J, van de Ven CP, Terwisscha van Scheltinga CEJ, Littooij AS, van den Heuvel-Eibrink MM, Fiocco M, Rios AC, Maal T, Wijnen MHWA. Comparison of 3-Dimensional and Augmented Reality Kidney Models With Conventional Imaging Data in the Preoperative Assessment of Children With Wilms Tumors. JAMA Netw Open 2019; 2:e192633. [PMID: 31002326 PMCID: PMC6481457 DOI: 10.1001/jamanetworkopen.2019.2633] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
IMPORTANCE Nephron-sparing surgery can be considered in well-defined cases of unilateral and bilateral Wilms tumors, but the surgical procedure can be very challenging for the pediatric surgeon to perform. OBJECTIVE To assess the added value of personalized 3-dimensional (3-D) kidney models derived from conventional imaging data to enhance preoperative surgical planning. DESIGN, SETTING, AND PARTICIPANTS In a survey study, the conventional imaging data of 10 Dutch children with Wilms tumors were converted to 3-D prints and augmented reality (AR) holograms and a panel of pediatric oncology surgeons (n = 7) assessed the quality of the different imaging methods during preoperative evaluation. Kidney models were created with 3-D printing and AR using a mixed reality headset for visualization. MAIN OUTCOMES AND MEASURES Differences in the assessment of 4 anatomical structures (tumor, arteries, veins, and urinary collecting structures) using questionnaires. A Likert scale measured differences between the imaging methods, with scores ranging from 1 (completely disagree) to 5 (completely agree). RESULTS Of the 10 patients, 7 were girls, and the mean (SD) age was 3.7 (1.7) years. Compared with conventional imaging, the 3-D print and the AR hologram models were evaluated by the surgeons to be superior for all anatomical structures: tumor (median scores for conventional imaging, 4.07; interquartile range [IQR], 3.62-4.15 vs 3-D print, 4.67; IQR, 4.14-4.71; P = .008 and AR hologram, 4.71; IQR, 4.26-4.75; P = .002); arteries (conventional imaging, 3.62; IQR, 3.43-3.93 vs 3-D print, 4.54; IQR, 4.32-4.71; P = .002 and AR hologram, 4.83; IQR, 4.64-4.86; P < .001), veins (conventional imaging, 3.46; IQR 3.39-3.62 vs 3-D print, 4.50; IQR, 4.39-4.68; P < .001 and AR hologram, 4.83; IQR, 4.71-4.86; P < .001), and urinary collecting structures (conventional imaging, 2.76; IQR, 2.42-3.00 vs 3-D print, 3.86; IQR, 3.64-4.39; P < .001 and AR hologram, 4.00; IQR, 3.93-4.58; P < .001). There were no differences in anatomical assessment between the two 3-D techniques (the 3-D print and AR hologram). CONCLUSIONS AND RELEVANCE In this study, the 3-D kidney models were associated with improved anatomical understanding among the surgeons and can be helpful in future preoperative planning of nephron-sparing surgery for Wilms tumors. These models may be considered as a supplementary visualization in clinical care.
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Affiliation(s)
- Lianne M. Wellens
- Department of Pediatric Surgery, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Jene Meulstee
- Radboud University Medical Center, Nijmegen, the Netherlands
| | - Cornelis P. van de Ven
- Department of Pediatric Surgery, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | - Annemieke S. Littooij
- Department of Pediatric Surgery, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | | | - Marta Fiocco
- Department of Pediatric Surgery, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Division of Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, the Netherlands
- Mathematical Institute, Leiden University, Leiden, the Netherlands
| | - Anne C. Rios
- Department of Pediatric Surgery, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Thomas Maal
- Radboud University Medical Center, Nijmegen, the Netherlands
| | - Marc H. W. A. Wijnen
- Department of Pediatric Surgery, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
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