• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of the mechanism of mechanical thrombectomy for acute cerebral large vessel occlusion and development of optimal therapeutic approach based on the intraprocedural angiographic findings

Research Project

Project/Area Number 20K17968
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionKobe University

Principal Investigator

Imahori Taichiro  神戸大学, 医学研究科, 医学研究員 (30604277)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords血栓回収 / 急性主幹動脈閉塞 / 脳梗塞 / 脳血管内治療 / ステント / 血栓 / 血管内治療 / 血栓溶解 / ステントリトリーバー / インビトロモデル / 再開通療法 / 急性脳主幹動脈閉塞 / 脳卒中 / 塞栓 / 血管内再開通療法 / 血栓回収療法
Outline of Research at the Start

急性脳主幹動脈閉塞に対する血管内再開通療法(血栓回収療法)は近年標準的治療となったが、迅速な再開通達成には課題がある。本研究は、閉塞部における血栓回収機器と血栓の相互関係についての実験的研究から、臨床使用可能な術中評価法と最適な治療手技戦略を確立することを目指すものである。これによって血管内再開通療法の再開通率が向上し、さらには急性脳主幹動脈閉塞例の予後改善に貢献することが期待される。

Outline of Final Research Achievements

In this study, we conducted experimental research with the aim of elucidating the clot retrieval mechanisms and improving the reperfusion efficacy of endovascular therapy for acute cerebral artery occlusion. Through an experimental model utilizing stent retrievers and clot analogs, we validated the interplay between thrombectomy devices and clot at the occlusion site. The two-dimensional vascular imaging during stent deployment accurately reflected the actual stent structure and enabled the evaluation of the relationship between the trhombectomy device and the clot. Furthermore, we expanded our research through international collaborative studies, utilizing in vitro brain vascular models and novel devices. We will endeavor to develop further insights from the acquired knowledge and focus on the elucidation of clot retrieval mechanisms and the advancement of treatment techniques.

Academic Significance and Societal Importance of the Research Achievements

本研究は、急性脳主幹動脈閉塞に対する血栓回収機構を解明し、術中の閉塞部評価法と閉塞部の性状に合わせた最適な治療手技戦略を確立することを目的とした。申請者のこれまでの研究成果に基づき、閉塞部性状と血栓回収機器による血栓把持の程度を日常臨床で簡便かつリアルタイムに評価可能な二次元的血管撮影所見で捉えることが可能であることを示した。このように、閉塞部の性状と回収機器の関係を様々な実験モデルで検証することは、血栓回収機構の解明にとって非常に重要であり、現時点で使用可能な治療機器による最適な治療手技戦略の開発だけではなく、今後の血管内再開通療法手技の研究に応用できるものと期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (28 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (15 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 15 results,  Open Access: 11 results) Presentation (12 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] カリフォルニア大学ロサンゼルス校(米国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Acute internal carotid artery occlusion due to dissection of the paraclinoid segment: Diagnostic usefulness of angiographic findings during stent retriever deployment2023

    • Author(s)
      Sasaki Isao、Imahori Taichiro、Yano Tatsuya、Onobuchi Kana、Gomi Masanori、Kuroda Junko、Kobayashi Norikata、Sato Kimitoshi、Niwa Yoji、Iwasaki Koichi、Hasegawa Hiroshi
    • Journal Title

      Radiology Case Reports

      Volume: 18 Issue: 1 Pages: 150-155

    • DOI

      10.1016/j.radcr.2022.10.017

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] First-in-human trial of Stabilizer device in neuroendovascular therapy2023

    • Author(s)
      Sakai Chiaki、...、Imahori Taichiro、Kaneko Naoki、Tateshima Satoshi
    • Journal Title

      Heliyon

      Volume: 9 Issue: 3 Pages: e14360-e14360

    • DOI

      10.1016/j.heliyon.2023.e14360

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] First-in-human trial of Center Wire for neuroendovascular therapy to avoid guidewire-related complications2023

    • Author(s)
      Matsumoto Shirabe...、Imahori Taichiro、Kaneko Naoki、Tateshima Satoshi、Sakai Nobuyuki
    • Journal Title

      Interventional Neuroradiology

      Volume: NA

    • DOI

      10.1177/15910199231176709

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crossing double stent retriever technique for refractory terminal internal carotid artery occlusion2022

    • Author(s)
      Sasaki Isao、Imahori Taichiro、Yano Tatsuya、Gomi Masanori、Kuroda Junko、Kobayashi Norikata、Sato Kimitoshi、Niwa Yoji、IwasaKi Koichi、Hasegawa Hiroshi
    • Journal Title

      Radiology Case Reports

      Volume: 17 Issue: 6 Pages: 1848-1852

    • DOI

      10.1016/j.radcr.2022.03.023

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Endovascular Treatment of Tandem Atherosclerotic Cervical Internal Carotid Artery Occlusion in the Setting of Acute Ischemic Stroke2022

    • Author(s)
      Yamashita Shunsuke、Imahori Taichiro、Koyama Junji、Tanaka Kazuhiro、Okamura Yusuke、Arai Atsushi、Iwahashi Hirofumi、Mori Tatsuya、Onobuchi Kana、Sasayama Takashi
    • Journal Title

      Vascular and Endovascular Surgery

      Volume: 57 Issue: 2 Pages: 137-148

    • DOI

      10.1177/15385744221130865

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ruptured vertebral artery dissecting aneurysms involving a dominant posterior inferior cerebellar artery origin: A preferred indication for bypass surgery in clinical practice2021

    • Author(s)
      Imahori Taichiro、Yamamoto Yusuke、Miura Shinichi、Higashino Masashi、Sugihara Masahiro、Mizobe Takashi、Aihara Hideo、Hosoda Kohkichi、Tanaka Kazuhiro、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Interdisciplinary Neurosurgery

      Volume: 23 Pages: 100999-100999

    • DOI

      10.1016/j.inat.2020.100999

    • NAID

      120007126720

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Iatrogenic intracranial vessel dissection during mechanical thrombectomy rescued by emergent stenting: 2 case reports2021

    • Author(s)
      Nakahara Masahiro、Imahori Taichiro、Tanaka Kazuhiro、Okamura Yusuke、Arai Atsushi、Yamashita Shunsuke、Iwahashi Hirofumi、Mori Tatsuya、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Radiology Case Reports

      Volume: 16 Issue: 4 Pages: 835-842

    • DOI

      10.1016/j.radcr.2021.01.040

    • NAID

      120007126719

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geranylgeranylacetone attenuates cerebral ischemia-reperfusion injury in rats through the augmentation of HSP 27 phosphorylation: a preliminary study2021

    • Author(s)
      Matsuo, Kazuya and Hosoda, Kohkichi and Tanaka, Jun and Yamamoto, Yusuke and Imahori, Taichiro and Nakai, Tomoaki and Irino, Yasuhiro and Shinohara, Masakazu and Sasayama, Takashi and Kohmura, Eiji
    • Journal Title

      BMC Neuroscience

      Volume: 22 Issue: 1 Pages: 9-19

    • DOI

      10.1186/s12868-021-00614-7

    • NAID

      120006975748

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Potential of machine learning to predict early ischemic events after carotid endarterectomy or stenting: a comparison with surgeon predictions2021

    • Author(s)
      Matsuo Kazuya、Fujita Atsushi、Hosoda Kohkichi、Tanaka Jun、Imahori Taichiro、Ishii Taiji、Kohta Masaaki、Tanaka Kazuhiro、Uozumi Yoichi、Kimura Hidehito、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Neurosurgical Review

      Volume: 45 Issue: 1 Pages: 607-616

    • DOI

      10.1007/s10143-021-01573-7

    • NAID

      120007191252

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Subarachnoid hemorrhage associated with cerebral hyperperfusion syndrome after simultaneous carotid endarterectomy and coronary artery bypass grafting procedures: A case report and review of the literature2021

    • Author(s)
      Miura Shinichi、Imahori Taichiro、Sugihara Masahiro、Mizobe Takashi、Aihara Hideo、Fukase Keigo、Matsumori Masamichi、Murakami Hirohisa、Hosoda Kohkichi、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Interdisciplinary Neurosurgery

      Volume: 25 Pages: 101144-101144

    • DOI

      10.1016/j.inat.2021.101144

    • NAID

      120007126722

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Contribution of Endoplasmic Reticulum Stress to the Clinical Instability of Carotid Plaques in Human Carotid Stenosis2021

    • Author(s)
      Hosoda Kohkichi、Imahori Taichiro、Tanaka Kazuhiro、Uno Takiko、Nakai Tomoaki、Kohta Masaaki、Fujita Atsushi、Sasayama Takashi
    • Journal Title

      Translational Stroke Research

      Volume: 13 Issue: 3 Pages: 420-431

    • DOI

      10.1007/s12975-021-00968-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Impact of introducing endovascular treatment on acute ischemic stroke outcomes: A shift from an era of medical management to thrombectomy in Japan2020

    • Author(s)
      Imahori Taichiro、Koyama Junji、Tanaka Kazuhiro、Okamura Yusuke、Arai Atsushi、Iwahashi Hirofumi、Mori Tatsuya、Yokote Akiyoshi、Matsushima Kazushi、Matsui Daisaku、Kobayashi Makoto、Hosoda Kohkichi、Kohmura Eiji
    • Journal Title

      Heliyon

      Volume: 6 Issue: 5 Pages: e03945-e03945

    • DOI

      10.1016/j.heliyon.2020.e03945

    • NAID

      120007126721

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Surgical Thromboendarterectomy for Free-Floating Thrombus Associated with Cervical Carotid Artery Dissection: A Case Report2020

    • Author(s)
      Imahori Taichiro、Tanaka Kazuhiro、Arai Atsushi、Kohmura Eiji
    • Journal Title

      Annals of Vascular Surgery

      Volume: 68 Pages: 572.e9-572.e14

    • DOI

      10.1016/j.avsg.2020.04.076

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Double Stent Retriever (SR) Technique: A Novel Mechanical Thrombectomy Technique to Facilitate the Device-Clot Interaction for Refractory Acute Cerebral Large Vessel Occlusions2020

    • Author(s)
      Imahori Taichiro、Miura Shinichi、Sugihara Masahiro、Mizobe Takashi、Aihara Hideo、Kohmura Eiji
    • Journal Title

      World Neurosurgery

      Volume: 141 Pages: 175-183

    • DOI

      10.1016/j.wneu.2020.05.268

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An Aneurysm at the Origin of a Duplicated Middle Cerebral Artery Treated by Stent-Assisted Coiling Using the “Wrapped-Candy” Low-Profile Visualized Intraluminal Support (LVIS) Technique: A Technical Case Report and Review of the Literature2020

    • Author(s)
      Imahori Taichiro、Mizobe Takashi、Fujinaka Toshiyuki、Miura Shinichi、Sugihara Masahiro、Aihara Hideo、Kohmura Eiji
    • Journal Title

      World Neurosurgery

      Volume: 143 Pages: 353-359

    • DOI

      10.1016/j.wneu.2020.08.046

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 脳梗塞回収血栓の病理組織像における血管内治療手技の影響2023

    • Author(s)
      Taichiro Imahori, Mahsa Ghovvati, Lea Guo, Satoshi Tateshima, Naoki Kaneko
    • Organizer
      脳卒中学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Paraclinoid segmentでの動脈解離による内頚動脈急性閉塞の一例2023

    • Author(s)
      矢野達也、今堀太一郎、佐々木庸 、 岩崎孝一 、長谷川洋
    • Organizer
      脳卒中学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Intraprocedural angiographic sign for assessing the stent-clot interaction during mechanical thrombectomy2022

    • Author(s)
      Taichiro Imahori, Satoshi Tateshima, Naoki Kaneko
    • Organizer
      Society of Vascular and Interventional Neurology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of thrombectomy technique on stroke clot pathology2022

    • Author(s)
      Taichiro Imahori, Mahsa Ghovvati, Lea Guo, Satoshi Tateshima, Naoki Kaneko
    • Organizer
      World Federation of Interventional Therapeutic Neuroradiology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental evaluation of angiographic findings of deployed stent retrievers at occlusion for assessing the stent-clot interaction during mechanical thrombectomy2022

    • Author(s)
      Shinichi Miura, Taichiro Imahori, Takashi Mizobe, Atsushi Uyama, Kohkichi Hosoda, Takashi Sasayama
    • Organizer
      World Federation of Interventional Therapeutic Neuroradiology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tandem atherosclerotic cervical internal carotid artery occlusion in the setting of acute ischemic stroke endovascular treatment2022

    • Author(s)
      Shunsuke Yamashita, Taichiro Imahori, Junji Koyama, Kazuhiro Tanaka, Yusuke Okamura, Atsushi Arai, Hirofumi Iwahashi, Tatsuya Mori, Takashi Sasayama
    • Organizer
      World Federation of Interventional Therapeutic Neuroradiology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ステント型血栓回収機器を用いた血栓回収術でのステント展開時血管撮影とデバイス血栓相互関係の実験的検証2021

    • Author(s)
      今堀太一郎、溝部敬、東野真志、三浦伸一、杉原正浩、相原英夫、鵜山淳、細田弘吉、篠山隆司、甲村英二
    • Organizer
      第46回日本脳卒中学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 発達した後下小脳動脈を含む破裂椎骨動脈解離性動脈瘤へのバイパス併用直達手術2021

    • Author(s)
      今堀太一郎、山本祐輔、東野真志、三浦伸一、杉原正浩、溝部敬、相原英夫、細田弘吉、田中一寛、篠山隆司、甲村英二
    • Organizer
      第50回日本脳卒中の外科学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] ステント型血栓回収機器を用いた血栓回収術におけるステント展開時血管撮影所見とデバイス血栓相互関係についての実験的検証2020

    • Author(s)
      今堀太一郎、三浦伸一、杉原正浩、溝部敬、相原英夫、細田弘吉
    • Organizer
      第79回日本脳神経外科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] ステント型血栓回収機器を用いた血栓回収術におけるステント展開時血管撮影所見とデバイス血栓相互関係についての実験的検証2020

    • Author(s)
      今堀太一郎、溝部敬、東野真志、三浦伸一、杉原正浩、相原英夫、鵜山淳、細田弘吉、甲村英二
    • Organizer
      第36回脳神経血管内治療学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 再開通困難な急性脳主幹動脈閉塞に対するdouble stent retriever (SR) technique2020

    • Author(s)
      今堀太一郎、溝部敬、東野真志、三浦伸一、杉原正浩、相原英夫、甲村英二
    • Organizer
      第36回脳神経血管内治療学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] “Wrapped candy” LVISテクニックを用いてステント併用コイル塞栓を行った重複中大脳動脈分岐部瘤の1例2020

    • Author(s)
      三浦伸一、今堀太一郎、溝部敬、藤中俊之、東野真志、杉原正浩、相原英夫、甲村英二
    • Organizer
      第36回脳神経血管内治療学会総会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi