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Cao P, Shi D, Li D, Zhu Z, Zhu J, Zhang J, Bai R. Modeling and in vivo experimental validation of 1,064 nm laser interstitial thermal therapy on brain tissue. Front Neurol 2023; 14:1237394. [PMID: 37869141 PMCID: PMC10588634 DOI: 10.3389/fneur.2023.1237394] [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: 06/09/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Laser interstitial thermal therapy (LITT) at 1064 nm is widely used to treat epilepsy and brain tumors; however, no numerical model exists that can predict the ablation region with careful in vivo validation. Methods In this study, we proposed a model with a system of finite element methods simulating heat transfer inside the brain tissue, radiative transfer from the applicator into the brain tissue, and a model for tissue damage. Results To speed up the computation for practical applications, we also validated P1-approximation as an efficient and fast method for calculating radiative transfer by comparing it with Monte Carlo simulation. Finally, we validated the proposed numerical model in vivo on six healthy canines and eight human patients with epilepsy and found strong agreement between the predicted temperature profile and ablation area and the magnetic resonance imaging-measured results. Discussion Our results demonstrate the feasibility and reliability of the model in predicting the ablation area of 1,064 nm LITT, which is important for presurgical planning when using LITT.
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Affiliation(s)
- Peng Cao
- Department of Neurosurgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, Zhejiang Province, China
| | - Dingsheng Shi
- Research and Development Department, Hangzhou GenLight MedTech Co., Ltd., Hangzhou, Zhejiang Province, China
| | - Ding Li
- Research and Development Department, Hangzhou GenLight MedTech Co., Ltd., Hangzhou, Zhejiang Province, China
| | - Zhoule Zhu
- Department of Neurosurgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, Zhejiang Province, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Junming Zhu
- Department of Neurosurgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, Zhejiang Province, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Jianmin Zhang
- Department of Neurosurgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, Zhejiang Province, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Ruiliang Bai
- Department of Neurosurgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, Zhejiang Province, China
- Interdisciplinary Institute of Neuroscience and Technology, School of Medicine, Zhejiang University, Hangzhou, China
- MOE Frontier Science Center for Brain Science and Brain-machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China
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Wang D, Yu Z, Qi Y, Hu K, Zhou T, Liu J, Rao W. Liquid Metal Nanoplatform Based Autologous Cancer Vaccines. ACS NANO 2023; 17:13278-13295. [PMID: 37253081 DOI: 10.1021/acsnano.3c00941] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Therapeutic cancer vaccines have been vigorously sought to bolster host adaptive immunity against metastatic cancers, but tumor heterogeneity, ineffective antigen utilization, and immunosuppressive tumor microenvironment hinder their clinical applications. Autologous antigen adsorbability and stimulus-release carrier coupling with immunoadjuvant capacity are urgent for personalized cancer vaccines. Here, we propose a perspective strategy of using a multipotent gallium-based liquid metal (LM) nanoplatform for personalized in situ cancer vaccines (ISCVs). The antigen-capturing and immunostimulatory LM nanoplatform can not only effectively destroy orthotopic tumors to generate multifarious autologous antigens upon external energy stimulation (photothermal/photodynamic effect) but also capture and transport antigens into dendritic cells (DCs) to enhance antigen utilization (adequate DCs uptake, antigen-endo/lysosomal escape) and facilitate DCs activation (mimic alum immunoadjuvant capacity), which ultimately awaken systemic antitumor immunity (expand cytotoxic T lymphocytes and modulate tumor microenvironment). With immune checkpoint blockade (anti-PD-L1) to further relieve the immunosuppressive tumor microenvironment, the positive tumoricidal immunity feedback loop was established to effectively eliminate orthotopic tumors, inhibit abscopal tumor growth, relapse, and metastasis as well as tumor-specific prevention. Collectively, this study demonstrates the potential of a multipotent LM nanoplatform for personalized ISCVs, which will open frontier exploration of LM-based immunostimulatory biomaterials and may encourage further investigation of precise individualized immunotherapy.
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Affiliation(s)
- Dawei Wang
- Liquid Metal and Cryogenic Biomedical Research Center, Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongyang Yu
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Oncology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Yuxia Qi
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Oncology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Kaiwen Hu
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Oncology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Tian Zhou
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Oncology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Jing Liu
- Liquid Metal and Cryogenic Biomedical Research Center, Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Wei Rao
- Liquid Metal and Cryogenic Biomedical Research Center, Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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Hübner F, Blauth S, Leithäuser C, Schreiner R, Siedow N, Vogl TJ. Validating a simulation model for laser-induced thermotherapy using MR thermometry. Int J Hyperthermia 2022; 39:1315-1326. [PMID: 36220179 DOI: 10.1080/02656736.2022.2129102] [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: 10/17/2022] Open
Abstract
OBJECTIVES We want to investigate whether temperature measurements obtained from MR thermometry are accurate and reliable enough to aid the development and validation of simulation models for Laser-induced interstitial thermotherapy (LITT). METHODS Laser-induced interstitial thermotherapy (LITT) is applied to ex-vivo porcine livers. An artificial blood vessel is used to study the cooling effect of large blood vessels in proximity to the ablation zone. The experimental setting is simulated using a model based on partial differential equations (PDEs) for temperature, radiation, and tissue damage. The simulated temperature distributions are compared to temperature data obtained from MR thermometry. RESULTS The overall agreement between measurement and simulation is good for two of our four test cases, while for the remaining cases drift problems with the thermometry data have been an issue. At higher temperatures local deviations between simulation and measurement occur in close proximity to the laser applicator and the vessel. This suggests that certain aspects of the model may need some refinement. CONCLUSION Thermometry data is well-suited for aiding the development of simulations models since it shows where refinements are necessary and enables the validation of such models.
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Affiliation(s)
- Frank Hübner
- Institute for Diagnostic and Interventional Radiology of the J.W. Goethe University Hospital, Frankfurt am Main, Germany
| | | | | | - Roland Schreiner
- Institute for Diagnostic and Interventional Radiology of the J.W. Goethe University Hospital, Frankfurt am Main, Germany
| | | | - Thomas J Vogl
- Institute for Diagnostic and Interventional Radiology of the J.W. Goethe University Hospital, Frankfurt am Main, Germany
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Lutz NW, Bernard M. Contactless Thermometry by MRI and MRS: Advanced Methods for Thermotherapy and Biomaterials. iScience 2020; 23:101561. [PMID: 32954229 PMCID: PMC7489251 DOI: 10.1016/j.isci.2020.101561] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Control of temperature variation is of primordial importance in particular areas of biomedicine. In this context, medical treatments such as hyperthermia and cryotherapy, and also the development and use of hydrogel-based biomaterials, are of particular concern. To enable accurate temperature measurement without perturbing or even destroying the biological tissue or material to be monitored, contactless thermometry methods are preferred. Among these, the most suitable are based on magnetic resonance imaging and spectroscopy (MRI, MRS). Here, we address the latest developments in this field as well as their current and anticipated practical applications. We highlight recent progress aimed at rendering MR thermometry faster and more reproducible, versatile, and sophisticated and provide our perspective on how these new techniques broaden the range of applications in medical treatments and biomaterial development by enabling insight into finer details of thermal behavior. Thus, these methods facilitate optimization of clinical and industrial heating and cooling protocols.
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Affiliation(s)
- Norbert W. Lutz
- Aix-Marseille University, CNRS, CRMBM, 27 Bd Jean Moulin, 13005 Marseille, France
| | - Monique Bernard
- Aix-Marseille University, CNRS, CRMBM, 27 Bd Jean Moulin, 13005 Marseille, France
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Hübner F, Schreiner R, Panahi B, Vogl TJ. Evaluation of the thermal sensitivity of porcine liver in CT-guided cryoablation: an initial study. Med Phys 2020; 47:4997-5005. [PMID: 32748398 DOI: 10.1002/mp.14432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/19/2020] [Accepted: 07/24/2020] [Indexed: 11/12/2022] Open
Abstract
PURPOSE To evaluate computed tomography (CT)-based thermometry in cryoablation, the thermal sensitivity of an ex-vivo porcine liver was determined in an initial study design. METHODS The CT-guided cryoablation was performed in three porcine liver samples over a period of 10 min. Fiber optic temperature probes were positioned parallel to the shaft of the cryoprobe in an axial slice orientation. During ablation, temperature measurements were performed simultaneously with CT imaging at 5 s intervals. On the CT images, the average CT number was calculated for a region of interest of 3 × 3 pixels just below the tip of each temperature probe. A linear regression analysis was performed using eleven data sets to determine the dependence of the CT number on the temperature. RESULTS With decreasing temperature, an increasing hypodense area around the tip of the cryoprobe was observed on the CT images and decreasing values of the CT number were determined. Starting at a temperature of - 40°C a linear relation between the CT number and the temperature was determined and a thermal sensitivity of 0.95 HU/°C (R2 = 0.73) was obtained. The thermal sensitivity was used to calculate color-coded temperature maps. The calculated temperature distribution corresponds quantitatively to the increasing hypodense area. CONCLUSIONS A noninvasive CT-based temperature determination during cryoablation in a normal ex vivo porcine liver is feasible. A thermal sensitivity of 0.95 HU/°C was determined by linear regression analysis. A color-coded map of the temperature distribution was presented.
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Affiliation(s)
- Frank Hübner
- Institute of Diagnostic and Interventional Radiology, University Hospital, Theodor-Stern-Kai 7, Frankfurt, 60590, Germany
| | - Roland Schreiner
- Institute of Diagnostic and Interventional Radiology, University Hospital, Theodor-Stern-Kai 7, Frankfurt, 60590, Germany
| | - Bita Panahi
- Institute of Diagnostic and Interventional Radiology, University Hospital, Theodor-Stern-Kai 7, Frankfurt, 60590, Germany
| | - Thomas Josef Vogl
- Institute of Diagnostic and Interventional Radiology, University Hospital, Theodor-Stern-Kai 7, Frankfurt, 60590, Germany
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Dolganova IN, Shikunova IA, Katyba GM, Zotov AK, Mukhina EE, Shchedrina MA, Tuchin VV, Zaytsev KI, Kurlov VN. Optimization of sapphire capillary needles for interstitial and percutaneous laser medicine. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-7. [PMID: 31849206 PMCID: PMC7006039 DOI: 10.1117/1.jbo.24.12.128001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
Sapphire capillary needles fabricated by edge-defined film-fed growth (EFG) technique hold strong potential in laser thermotherapy and photodynamic therapy, thanks to the advanced physical properties of sapphire. These needles feature an as-grown optical quality, their length is tens of centimeters, and they contain internal capillary channels, with open or closed ends. They can serve as optically transparent bearing elements with optical fibers introduced into their capillary channels in order to deliver laser radiation to biological tissues for therapeutic and, in some cases, diagnostic purposes. A potential advantage of the EFG-grown sapphire needles is associated with an ability to form the tip of a needle with complex geometry, either as-grown or mechanically treated, aimed at controlling the output radiation pattern. In order to examine a potential of the radiation pattern shaping, we present a set of fabricated sapphire needles with different tips. We studied the radiation patterns formed at the output of these needles using a He-Ne laser as a light source, and used intralipid-based tissue phantoms to proof the concept experimentally and the Monte-Carlo modeling to proof it numerically. The observed results demonstrate a good agreement between the numerical and experimental data and reveal an ability to control within wide limits the direction of tissue exposure to light and the amount of exposed tissue by managing the sapphire needle tip geometry.
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Affiliation(s)
- Irina N. Dolganova
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Irina A. Shikunova
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
| | - Gleb M. Katyba
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Arsen K. Zotov
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
| | | | - Marina A. Shchedrina
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Valery V. Tuchin
- Saratov State University, Saratov, Russia
- Russian Academy of Sciences, Institute of Precision Mechanics and Control, Saratov, Russia
- Tomsk State University, Tomsk, Russia
- ITMO University, St. Petersburg, Russia
| | - Kirill I. Zaytsev
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
- Russian Academy of Sciences, Prokhorov General Physics Institute, Moscow, Russia
| | - Vladimir N. Kurlov
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
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Bazrafshan B, Koujan A, Hübner F, Leithäuser C, Siedow N, Vogl TJ. A thermometry software tool for monitoring laser-induced interstitial thermotherapy. ACTA ACUST UNITED AC 2019; 64:449-457. [PMID: 30243013 DOI: 10.1515/bmt-2017-0197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 08/21/2018] [Indexed: 11/15/2022]
Abstract
The purpose of this study was to develop a thermometry software tool for temperature monitoring during laser-induced interstitial thermotherapy (LITT). C++ programming language and several libraries including DICOM Toolkit, Grassroots DICOM library, Insight Segmentation and Registration Toolkit, Visualization Toolkit and Quasar Toolkit were used. The software's graphical user interface creates windows displaying the temperature map and the coagulation extent in the tissue, determined by the magnetic resonance imaging (MRI) thermometry with the echo planar imaging sequence and a numerical simulation based on the radiation and heat transfer in biological tissues, respectively. The software was evaluated applying the MRI-guided LITT to ex vivo pig liver and simultaneously measuring the temperature through a fiber-optic thermometer as reference. Using the software, the temperature distribution determined by the MRI method was compared with the coagulation extent simulation. An agreement was shown between the MRI temperature map and the simulated coagulation extent. Furthermore, the MRI-based and simulated temperatures agreed with the measured one - a correlation coefficient of 0.9993 and 0.9996 was obtained, respectively. The precision of the MRI temperature amounted to 2.4°C. In conclusion, the software tool developed in the present study can be applied for monitoring and controlling the LITT procedure in ex vivo tissues.
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Affiliation(s)
- Babak Bazrafshan
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie (IDIR), Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany, Phone: +49 69 6301 4793, Fax: +49 69 6301 7258
| | - Ahmad Koujan
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie (IDIR), Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Frank Hübner
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie (IDIR), Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Christian Leithäuser
- Fraunhofer-Institut für Techno- und Wirtschaftsmathematik (ITWM), Fraunhofer-Platz 1, Kaiserslautern 67663, Germany
| | - Norbert Siedow
- Fraunhofer-Institut für Techno- und Wirtschaftsmathematik (ITWM), Fraunhofer-Platz 1, Kaiserslautern 67663, Germany
| | - Thomas J Vogl
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie (IDIR), Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
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Ma T, Chai YC, Zhu HY, Chen H, Wang Y, Li QS, Pang LH, Wu RQ, Lv Y, Dong DH. Effects of Different 980-nm Diode Laser Parameters in Hepatectomy. Lasers Surg Med 2019; 51:720-726. [PMID: 31090100 DOI: 10.1002/lsm.23101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2019] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Despite the successful application of laser in animal experiments and clinics, the adjustment of laser parameters during surgery is still unclear. This study aimed to investigate the effect of different 980-nm diode laser parameters in hepatectomy. This could provide a clear protocol for using 980-nm diode laser in hepatectomy. STUDY DESIGN/MATERIALS AND METHODS In total, 48 Sprague-Dawley rats were used to explore the effects of different 980-nm diode laser parameters in hepatectomy, by setting different parameter combinations. The rats were randomly divided into eight groups, including the continuous wave group and quasi-continuous wave group. The effects were assessed in terms of liver resection speed, extent of intraoperative bleeding, and thermal damage. RESULTS In the quasi-continuous wave group, there was a significant difference in resection speed at the different laser parameters (P < 0.001); however, there was no significant difference in intraoperative bleeding and thermal damage. In the continuous wave group, there was a significant difference in resection speed, intraoperative bleeding, and thermal damage at different parameters. CONCLUSION The study showed that the average power determined hemostasis efficiency and thermal damage, and peak power determined the liver resection speed, whereas the pulse width and repetition frequency are not independent factors. When using 980-nm diode laser in hepatectomy, the average power should be decreased to prove hemostasis efficiency in delicate operations, and the peak power should be decreased to accelerate the procedure without worsening thermal damage. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Tao Ma
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yi-Chao Chai
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Surgical Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, China
| | - Hao-Yang Zhu
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Huan Chen
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yue Wang
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Qing-Shan Li
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Li-Hui Pang
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Rong-Qian Wu
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yi Lv
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Ding-Hui Dong
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
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