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Lv B, Sun M, Shan Y, Cao X, Du Z, Liu X, Zhang R, Leng X, Fiehler J, Siddiqui AH, Xiang J, Wang J. AneuGuide™ software-assisted vs. manual measurements in sizing for pipeline embolization device: An agreement study. Comput Biol Med 2024; 168:107715. [PMID: 38007975 DOI: 10.1016/j.compbiomed.2023.107715] [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: 06/18/2023] [Revised: 10/14/2023] [Accepted: 11/15/2023] [Indexed: 11/28/2023]
Abstract
Sizing of flow diverters (FDs) is a challenging task in the treatment of intracranial aneurysms due to their foreshortening behavior. The purpose of this study is to evaluate the difference between the sizing results from the AneuGuide™ software and from conventional 2D measurement. Ninety-eight consecutive patients undergoing pipeline embolization device (PED) treatment between October 2018 and April 2023 in the First Medical Center of Chinese PLA General Hospital (Beijing, China) were retrospectively analyzed. For all cases, the optimal PED dimensions were both manually determined through 2D measurements on pre-treatment 3D-DSA and computed by AneuGuide™ software. The inter-rater reliability between the two sets of sizing results for each methodology was analyzed using intraclass correlation coefficient (ICC). The degree of agreement between manual sizing and software sizing were analyzed with the Bland-Altman plot and Pearson's test. Differences between two methodologies were analyzed with Wilcoxon signed rank test. Statistical significance was defined as p < 0.05. There was better inter-rater reliability between AneuGuide™ measurements both for diameter (ICC 0.92, 95%CI 0.88-0.95) and length (ICC 0.93, 95%CI 0.89-0.96). Bland-Altman plots showed a good agreement for diameter selection between two methodologies. However, the median length proposed by software group was significantly shorter (16 mm versus 20 mm, p < 0.001). No difference was found for median diameter (4.25 mm versus 4.25 mm). We demonstrated that the AneuGuide™ software provides highly reliable results of PED sizing compared with manual measurement, with a shorter stent length. AneuGuide™ may aid neurointerventionalists in selecting optimal dimensions for FD treatment.
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Affiliation(s)
- Bin Lv
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Mingguang Sun
- Department of Neurology, Beijing Hospital of Integrated Traditional Chinese and Western Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yejie Shan
- ArteryFlow Technology Co., Ltd, Hangzhou, China
| | - Xiangyu Cao
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhihua Du
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xinfeng Liu
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Rongju Zhang
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | | | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Adnan H Siddiqui
- Neurosurgery and Radiology and Canon Stroke and Vascular Research Center, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| | | | - Jun Wang
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China.
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White TG, Santhumayor BA, Turpin J, Shah K, Toscano D, Teron I, Link T, Patsalides A, Woo HH. Flow diverter surface modifications for aneurysm treatment: A review of the mechanisms and data behind existing technologies. Interv Neuroradiol 2023:15910199231207550. [PMID: 37899636 DOI: 10.1177/15910199231207550] [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: 10/31/2023] Open
Abstract
Flow diversion (FD) has become a mainstay treatment for large wide-necked aneurysms. Despite excellent safety and efficacy, the risk of thromboembolic complications necessitates the use of dual antiplatelet therapy (DAPT). The use of DAPT makes hemorrhagic complications of stenting carry high morbidity and mortality. Additionally, DAPT usage carries a risk of "nuisance" complications that do not directly impact intracranial circulation but need to be managed nonetheless. To circumvent this issue, the most recent generation of flow diverters have undergone surface modification with various compounds to confer blood compatibility to limit clotting and thrombosis. While these newer generation flow diverters are marketed to enhance ease of deployment, the goal is to eventually facilitate single antiplatelet use with flow diverter treatment. This generation of FDs have potential to expand indications beyond unruptured wide-necked aneurysms to include ruptured intracranial aneurysms without the necessity of DAPT. Currently, no comprehensive review details the molecular mechanisms and pre-clinical and clinical data on these modifications. We seek to fill this gap in the literature by consolidating information on the coating technology for four major FDs currently in clinical use-PipelineTM Flex and Vantage Shield TechnologyTM, FREDTMX, p48/64 hydrophilic coating, and Acandis Dervio® 2heal-to serve as a reference guide in neurointerventional aneurysm treatment. Although the Balt silkTM was one of the first FDs, it is uncoated, thus we will not cover this device in our review. A literature review was performed to obtain information on each coating technology for the major flow diverters currently on the market using international databases (PUBMED, Embase, Medline, Google Scholar). The search criteria used the keywords for each coating technology of interest "phosphorylcholine," "poly 2-methoxyethyl acrylate," "hydrophilic polymer coating," and "fibrin-heparin" Keywords related to the device names "Pipeline Shield," "Pipeline Shield with Flex Technology," "FRED," "FREDX," "p64," "p64-HPC," "Derivo 2heal" were also used. Studies that detailed the mechanism of action of the coating, any pre-clinical studies with surface-modified intravascular devices, and any clinical retrospective series, prospective series, or randomized clinical trials with surface-modified devices for aneurysm treatment were included.
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Affiliation(s)
- Timothy G White
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Brandon A Santhumayor
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Justin Turpin
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Kevin Shah
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Daniel Toscano
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Ina Teron
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Thomas Link
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Athos Patsalides
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
| | - Henry H Woo
- Department of Neurosurgery, North Shore University Hospital, Donald and Barbara Zucker School of Medicine, Manhasset, NY, USA
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Krishnakumar H, Mascitelli J, Hassan A, Leary J, Son C. Treatment of cerebral aneurysms with flow diversion or stent assisted coiling in patients on concurrent oral anticoagulation. Neuroradiol J 2023; 36:464-469. [PMID: 36409963 PMCID: PMC10588601 DOI: 10.1177/19714009221114443] [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] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Flow diversion and stent assisted coiling are increasingly utilized strategies in the endovascular treatment of cerebral aneurysms. Ischemic and hemorrhagic complications play an important role in the outcome following such embolizations. Little is published regarding patients on concurrent oral anticoagulation and undergoing such embolizations and the rates of complications and patient outcomes. MATERIALS AND METHODS Retrospective data for consecutive patients on concurrent oral anticoagulation undergoing flow diversion or stent assisted coiling for cerebral aneurysms was accessed from databases at the participating sites. Patient demographics, comorbidities, antiplatelet regimens, aneurysm characteristics, complications, and radiographic results were recorded and descriptive statistics reported. RESULTS Eleven patients were identified undergoing embolization in the setting of preoperative anticoagulant use and included seven patients undergoing flow diversion and four patients undergoing stent assisted coiling. There was a wide range of antiplatelet and anticoagulant management strategies. There were four major complications in three patients (27.2%) to include two serious bleeding events in addition to ischemic strokes. Both serious bleeding events occurred in patients continued on oral anticoagulation with the addition of antiplatelets. At a mean follow-up of 9.6 months, three aneurysms had continued filling for a good radiographic outcome of 72.7%. CONCLUSIONS Anticoagulant and antiplatelet use in the setting of flow diversion or stent assisted coiling may carry increased risks as compared to historical norms and, for flow diversion, offer decreased efficacy.
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Affiliation(s)
- Hari Krishnakumar
- Long School of Medicine, University of Texas Health Science Center, San Antonio, TX, USA
| | - Justin Mascitelli
- Department of Neurosurgery, University of Texas Health Science Center, San Antonio, TX, USA
| | - Ameer Hassan
- Department of Neurology, University of Texas Rio Grande Valley Medical School, Harlingen, TX, USA
- Valley Baptist Medical Center, Harlingen, TX, USA
| | - Jonathan Leary
- Department of Neurosurgery, University of Texas Health Science Center, San Antonio, TX, USA
| | - Colin Son
- Neurosurgical Associates of San Antonio, San Antonio, TX, USA
- School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX, USA
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Peng Q, Guo R, Zhou Y, Teng R, Cao Y, Mu S. Comparison of Gelatin/Polylysine- and Silk Fibroin/SDF-1α-Coated Mesenchymal Stem Cell-Seeded Intracranial Stents. Macromol Biosci 2022; 23:e2200402. [PMID: 36541928 DOI: 10.1002/mabi.202200402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/12/2022] [Indexed: 12/24/2022]
Abstract
Endothelialization of the aneurysmal neck is essential for aneurysm healing after endovascular treatment. Mesenchymal stem cell (MSC)-seeded stents can promote aneurysm repair. The biological effects of coated and uncoated nitinol intracranial stents seeded with MSCs on vascular cells and macrophage proliferation and inflammation are investigated. Two stent coatings that exert pro-aggregation effects on MSCs via different mechanisms are examined: gelatin/polylysine (G/PLL), which enhances cell adhesion, and silk fibroin/SDF-1α (SF/SDF-1α), which enhances chemotaxis. The aim is to explore the feasibility of MSC-seeded coated stents in the treatment of intracranial aneurysms. The G/PLL coating provides the highest cytocompatibility and blood compatibility substrate for MSCs and vascular cells and promotes cell adhesion and proliferation. Moreover, it enhances MSC secretion and regulation of vascular cell and macrophage proliferation and chemotaxis. Although the SF/SDF-1α coating promotes MSC secretion and vascular cell chemotaxis, it induces a greater degree of macrophage proliferation, chemotaxis, and secretion of pro-inflammatory factors. MSC-seeded stents coated with G/PLL may benefit stent surface endothelialization and reduce the inflammatory response after endovascular treatment of intracranial aneurysm. These effects may improve aneurysm healing and increase the cure rate.
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Affiliation(s)
- Qichen Peng
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Ruimin Guo
- Healthina Academy of Biomedicine, Tianjin Economic-Technological Development Area, HAB-TEDA, Tianjin, 300457, China.,Tangyi holdings (Shenzhen) Co., LTD, Shenzhen, 518101, China
| | - Yangyang Zhou
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Ruidi Teng
- Healthina Academy of Biomedicine, Tianjin Economic-Technological Development Area, HAB-TEDA, Tianjin, 300457, China.,Tangyi holdings (Shenzhen) Co., LTD, Shenzhen, 518101, China
| | - Yulin Cao
- Healthina Academy of Biomedicine, Tianjin Economic-Technological Development Area, HAB-TEDA, Tianjin, 300457, China.,Tangyi holdings (Shenzhen) Co., LTD, Shenzhen, 518101, China
| | - Shiqing Mu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
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Feigen CM, Vivanco-Suarez J, Javed K, Dardick JM, Holland R, Mendez-Ruiz A, Ortega-Gutierrez S, Haranhalli N, Altschul DJ. Pipeline Embolization Device and Pipeline Flex Versus Surpass Streamline Flow Diversion in Intracranial Aneurysms: A Retrospective Propensity Score-Matched Study. World Neurosurg 2022; 161:e384-e394. [PMID: 35151920 DOI: 10.1016/j.wneu.2022.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To compare safety and efficacy profiles in aneurysms treated with Pipeline Embolization Device or Pipeline Flex versus Surpass Streamline flow diverters (FDs). METHODS Patients who underwent flow diversion for aneurysm treatment at 2 centers were included. Covariates comprised patient demographics, comorbidities, and aneurysm characteristics. Metrics included number of devices, adjuvant device use, case duration, and radiation exposure. Outcomes included periprocedural complications and radiographic results at follow-up. Propensity score-matched pairs were generated using demographic and aneurysm characteristics to verify the outcomes in equally sized groups. RESULTS The majority of 141 flow diversion procedures performed on 126 patients were in the anterior circulation (96%) and unruptured (93%). Operators experienced more complications placing Surpass FDs compared with Pipelines (18.2% vs. 3.1%, P = 0.005) but used fewer Surpass devices per case (1 device in all Surpass cases and range for Pipeline cases 1-7; P < 0.001). Ballooning was more frequent for Surpass (29.5% vs. 2.1%, P < 0.001). There were no differences in mortality (2.1% vs. 0, P = 1.00), intracranial hemorrhage (3.1% vs. 0, P = 0.551), or stroke (4.2% vs. 6.8%, P = 0.680). Rates of aneurysm obliteration at follow-up were similar. Propensity-matched pairs had no differences in FD deployment complications or perioperative events, yet the significant differences remained for adjuvant balloon use and number of FDs deployed. CONCLUSIONS While the devices demonstrated similar safety and efficacy profiles, deployment of the Surpass Streamline was more technically challenging than Pipeline Embolization Device or Pipeline Flex. Prospective cohort studies are needed to corroborate these findings.
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Affiliation(s)
- Chaim M Feigen
- Montefiore Department of Neurological Surgery, Bronx, New York, USA.
| | - Juan Vivanco-Suarez
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Kainaat Javed
- Montefiore Department of Neurological Surgery, Bronx, New York, USA
| | - Joseph M Dardick
- Montefiore Department of Neurological Surgery, Bronx, New York, USA
| | - Ryan Holland
- Montefiore Department of Neurological Surgery, Bronx, New York, USA
| | - Alan Mendez-Ruiz
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Santiago Ortega-Gutierrez
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Neil Haranhalli
- Montefiore Department of Neurological Surgery, Bronx, New York, USA
| | - David J Altschul
- Montefiore Department of Neurological Surgery, Bronx, New York, USA
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6
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Li G, Song X, Wang H, Liu S, Ji J, Guo Y, Qiao A, Liu Y, Wang X. Prediction of Cerebral Aneurysm Hemodynamics With Porous-Medium Models of Flow-Diverting Stents via Deep Learning. Front Physiol 2021; 12:733444. [PMID: 34603085 PMCID: PMC8484706 DOI: 10.3389/fphys.2021.733444] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/19/2021] [Indexed: 11/26/2022] Open
Abstract
The interventional treatment of cerebral aneurysm requires hemodynamics to provide proper guidance. Computational fluid dynamics (CFD) is gradually used in calculating cerebral aneurysm hemodynamics before and after flow-diverting (FD) stent placement. However, the complex operation (such as the construction and placement simulation of fully resolved or porous-medium FD stent) and high computational cost of CFD hinder its application. To solve these problems, we applied aneurysm hemodynamics point cloud data sets and a deep learning network with double input and sampling channels. The flexible point cloud format can represent the geometry and flow distribution of different aneurysms before and after FD stent (represented by porous medium layer) placement with high resolution. The proposed network can directly analyze the relationship between aneurysm geometry and internal hemodynamics, to further realize the flow field prediction and avoid the complex operation of CFD. Statistical analysis shows that the prediction results of hemodynamics by our deep learning method are consistent with the CFD method (error function <13%), but the calculation time is significantly reduced 1,800 times. This study develops a novel deep learning method that can accurately predict the hemodynamics of different cerebral aneurysms before and after FD stent placement with low computational cost and simple operation processes.
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Affiliation(s)
- Gaoyang Li
- Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Xiaorui Song
- Department of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an, China
| | - Haoran Wang
- Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Siwei Liu
- Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Jiayuan Ji
- Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Yuting Guo
- Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Aike Qiao
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China
| | - Youjun Liu
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China
| | - Xuezheng Wang
- Department of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an, China
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7
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Sunohara T, Imamura H, Goto M, Fukumitsu R, Matsumoto S, Fukui N, Oomura Y, Akiyama T, Fukuda T, Go K, Kajiura S, Shigeyasu M, Asakura K, Horii R, Sakai C, Sakai N. Neck Location on the Outer Convexity is a Predictor of Incomplete Occlusion in Treatment with the Pipeline Embolization Device: Clinical and Angiographic Outcomes. AJNR Am J Neuroradiol 2021; 42:119-125. [PMID: 33184073 DOI: 10.3174/ajnr.a6859] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/11/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND PURPOSE With the increasing use of the Pipeline Embolization Device for the treatment of aneurysms, predictors of clinical and angiographic outcomes are needed. This study aimed to identify predictors of incomplete occlusion at last angiographic follow-up. MATERIALS AND METHODS In our retrospective, single-center cohort study, 105 ICA aneurysms in 89 subjects were treated with Pipeline Embolization Devices. Patients were followed per standardized protocol. Clinical and angiographic outcomes were analyzed. We introduced a new morphologic classification based on the included angle of the parent artery against the neck location: outer convexity type (included angle, <160°), inner convexity type (included angle, >200°), and lateral wall type (160° ≤ included angle ≤200°). This classification reflects the metal coverage rate and flow dynamics. RESULTS Imaging data were acquired in 95.3% of aneurysms persistent at 6 months. Complete occlusion was achieved in 70.5%, and incomplete occlusion, in 29.5% at last follow-up. Multivariable regression analysis revealed that 60 years of age or older (OR, 5.70; P = .001), aneurysms with the branching artery from the dome (OR, 10.56; P = .002), fusiform aneurysms (OR, 10.2; P = .009), and outer convexity-type saccular aneurysms (versus inner convexity type: OR, 30.3; P < .001; versus lateral wall type: OR, 9.71; P = .001) were independently associated with a higher rate of incomplete occlusion at the last follow-up. No permanent neurologic deficits or rupture were observed in the follow-up period. CONCLUSIONS The aneurysm neck located on the outer convexity is a new, incomplete occlusion predictor, joining older age, fusiform aneurysms, and aneurysms with the branching artery from the dome. No permanent neurologic deficits or rupture was observed in the follow-up, even with incomplete occlusion.
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Affiliation(s)
- T Sunohara
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.
| | - H Imamura
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - M Goto
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - R Fukumitsu
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Matsumoto
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - N Fukui
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Y Oomura
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - T Akiyama
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - T Fukuda
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Go
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Kajiura
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - M Shigeyasu
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Asakura
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - R Horii
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - C Sakai
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - N Sakai
- From the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
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