Takuro Ishii

Profile Information

Affiliation: Assistant Professor, Graduate School of Biomedical Engineering, Tohoku University

Degree: Ph.D. in Engineering(Sep, 2014, Chiba University)

ORCID iD: https://orcid.org/0000-0002-7411-3919
J-GLOBAL ID: 201201071468309457
Researcher ID: E-8375-2014
researchmap Member ID: B000219744

External link: https://www2.fris.tohoku.ac.jp/~ishii/

Research Interests

Research Areas

Research History

Jan, 2025 - Present

Assistant Professor, Graduate School of Biomedical Engineering, Tohoku University
Mar, 2020 - Present

(Research Fellow), Center for Frontier Medical Engineering, Chiba University
Jan, 2020 - Dec, 2024

Assistant Professor (Prominent Research Fellow of Tohoku University), Frontier Research Institute for Interdisciplinary Sciences, Tohoku University
Jan, 2020 - Mar, 2024

Leading Initiative for Excellent Young Researchers (LEADER), Ministry of Education,Culture,Sports,Science and Technology (MEXT)
Apr, 2018 - Dec, 2019

Overseas Research Fellow, Japan Society for the Promotion of Science
Mar, 2017 - Dec, 2019

Postdoctoral Fellow, Department of Electrical and Computer Engineering, University of Waterloo
Dec, 2016 - Feb, 2017

Senior Research Assistant, Department of Electrical and Electronic Engineering, The University of Hong Kong
Apr, 2016 - Nov, 2016

Research Associate (Honorary Assistant Professor), Department of Electrical and Electronic Engineering, The University of Hong Kong
Oct, 2014 - Mar, 2016

Assistant Professor, Center for Frontier Medical Engineering, Chiba University
Apr, 2012 - Mar, 2014

Research Fellow (DC2), Japan Society for the Promotion of Science (JSPS)

Papers

A Deep-Learning-Aided Diagnosis of Drowning using Post-mortem Lung Computed Tomography

Amber Habib Qureshi, Takuro Ishii, Yoshifumi Saijo

Forensic Imaging, 200629, Apr, 2025 Peer-reviewedCorresponding author
Image quality improvement in single plane-wave imaging using deep learning

Kanta Miura, Hiromi Shidara, Takuro Ishii, Koichi Ito, Takafumi Aoki, Yoshifumi Saijo, Jun Ohmiya

Ultrasonics, 145 107479-107479, Jan, 2025 Peer-reviewed
超音波スペックルトラッキング法による嚥下関連筋の新評価法の開発

澤田朱里, 太田淳, 鈴木淳, 石井琢郎, 川上紗弥香, 西條芳文, 香取幸夫

日本摂食・嚥下リハビリテーション学会雑誌, 28(3) S131-S131, Dec, 2024
Trends and Developments in 3D Photoacoustic Imaging Systems: A Review of Recent Progress

Fikhri Astina Tasmara, Mitrayana Mitrayana, Andreas Setiawan, Takuro Ishii, Yoshifumi Saijo, Rini Widyaningrum

Medical Engineering &Physics, 104268-104268, Nov, 2024 Peer-reviewed
Matrix stiffness regulates the triad communication of adipocytes/macrophages/endothelial cells through CXCL13

Arthur Choisez, Seiichiro Ishihara, Takuro Ishii, Yidan Xu, Sepideh D. Firouzjah, Hisashi Haga, Ryoichi Nagatomi, Joji Kusuyama

Journal of Lipid Research, 65(9) 100620-100620, Sep, 2024 Peer-reviewed
Singular value decomposition with weighting matrix applied for optical-resolution photoacoustic microscopes

I Gede Eka Sulistyawan, Daisuke Nishimae, Takuro Ishii, Yoshifumi Saijo

Ultrasonics, 143 107424-107424, Sep, 2024 Peer-reviewed
Effects of diameter of optical absorber visualized by an annular array AR-PAM system on spectrum characteristics of photoacoustic signals

Riku Suzuki, I. Gede Eka Sulistyawan, Takuro Ishii, Yoshifumi Saijo

Japanese Journal of Applied Physics, 63(4) 04SP57-04SP57, Apr 1, 2024 Peer-reviewed
Testbed mimicking intracellular environment for optical-resolution photoacoustic microscopy

Daisuke Nishimae, Takuro Ishii, Koetsu Ogasawara, Yoshifumi Saijo

Japanese Journal of Applied Physics, 63(4) 04SP63, Mar 25, 2024 Peer-reviewed
Superficial Bifurcated Microflow Phantom for High-Frequency Ultrasound Applications

Anam Bhatti, Takuro Ishii, Yoshifumi Saijo

Ultrasound in Medicine and Biology, 50(1) 158-164, Jan, 2024 Peer-reviewedCorresponding author
Utilization of Curvelet Transform in Reconstructing Cellular Images for Undersampled Optical-Resolution Photoacoustic Microscopy

I Gede Eka Sulistyawan, Daisuke Nishimae, Takuro Ishii, Yoshifumi Saijo

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 70(12) 1631-1641, Dec, 2023 Peer-reviewed
Transrectal ultrasound vector projectile imaging for time-resolved visualization of flow dynamics in the male urethra: A clinical pilot study

Takuro Ishii, Tomonori Yamanishi, Tomohiko Kamasako, Chiharu Shibata, Miki Fuse, Mayuko Kaga, Kanya Kaga, Hassan Nahas, Billy Y. S. Yiu, Alfred C. H. Yu …

Medical Physics, 51(1) 428-438, Nov 20, 2023 Peer-reviewedLead authorCorresponding author
A GPU-Based, Real-Time Dealiasing Framework for High-Frame-Rate Vector Doppler Imaging

Hassan Nahas, Takuro Ishii, Billy Y. S. Yiu, Alfred C. H. Yu

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 70(11) 1384-1400, Nov, 2023 Peer-reviewed
超音波Bモード画像のテンプレートマッチングによる嚥下運動解析法の検討

川上紗弥香, 澤田朱里, 太田淳, 石井琢郎, 香取幸夫, 西條芳文

電子情報通信学会技術研究報告(超音波), 123(214) 19-23, Oct, 2023
Ultrasound vector flow imaging during veno-arterial extracorporeal membrane oxygenation in a thoracic aorta model

Kenichiro Yambe, Takuro Ishii, Billy Y. S. Yiu, Alfred C. H. Yu, Tomoyuki Endo, Yoshifumi Saijo

Journal of Artificial Organs, 27(3) 230-237, Jul 20, 2023 Peer-reviewedCorresponding author
夜間頻尿および夜間多尿に対する弾性ストッキングの効果

柴田千晴, 加賀勘家, 鎌迫智彦, 加賀麻祐子, 布施美樹, 石塚満, 石井琢郎, 榊原隆次, 山西友典

日本排尿機能学会誌, 33(2) 499-505, Jul, 2023
Evaluation of temperature-dependent fluctuations in skin microcirculation flow using a light-emitting diode based photoacoustic imaging device

Yosuke Ito, Takuro Ishii, Shin Yamazaki, Akiko Yoshida, Kei Nagaya, Yoshifumi Saijo

Journal of Clinical Monitoring and Computing, 37(5) 1361-1367, May 11, 2023 Peer-reviewed
A study on correction method of total acoustic power in presence of shielding in focused ultrasound treatment using acoustic radiation force imaging

Erika Numahata, Shin YOSHIZAWA, Shin-ichiro UMEMURA, Takuro Ishii, Yoshifumi Saijo

Japanese Journal of Applied Physics, 62 SJ1044, Apr 11, 2023 Peer-reviewed
Ultrasound flow phantom for transcranial Doppler: An assessment of angular mismatch effect on blood velocity measurement in comparison to optical particle image velocimetry

Muhammad Shiddiq Sayyid Hashuro, Kotaro Daibo, Takuro Ishii, Yoshifumi Saijo, Makoto Ohta

Frontiers in Physics, 11 1134588, Apr 6, 2023 Peer-reviewed
Robust flow vector estimation for echocardiography with extended Nyquist velocity using dual-PRF approach: A flow phantom study

Yuki Okada, Naoya Kanno, Anam Bhatti, Takuro Ishii, Yoshifumi Saijo

Japanese Journal of Applied Physics, 62 SJ1033, Mar, 2023 Peer-reviewedCorresponding author
Development of Ultrasound Phantom Made of Transparent Material: Feasibility of Optical Particle Image Velocimetry

Muhammad Shiddiq Sayyid Hashuro, Simon Tupin, Narendra Kurnia Putra, Kotaro Daibo, Kosuke Inoue, Takuro Ishii, Hiroyuki Kosukegawa, Kenichi Funamoto, Toshiyuki Hayase, Makoto Ohta

Ultrasound in Medicine and Biology, 49(6) 1385-1394, Mar, 2023 Peer-reviewed

Misc.

Rationally Grafting A Synthetic Multinuclear Metal Center into a Cytokine: A Dual-Functional Designer Metalloenzyme

Akiko Ueno, Fumiko Takida, Tomoki Kita, Takuro Ishii, Tomoki Himiyama, Takuya Mabuchi, Yasunori Okamoto

ChemRxiv, Oct 4, 2024
UNet++と離散ウェーブレット変換を用いた単一平面波イメージングにおける品質改善に関する検討

設楽裕海, 三浦幹太, 石井琢郎, 伊藤康一, 青木孝文, 西條芳文, 大宮淳

電子情報通信学会技術研究報告(Web), 124(184(MI2024 18-25)), 2024
Evaluation of Cephalocaudal Movements of Swallowing-Related Muscles by Template Matching of B-mode Imegery

川上紗弥香, 澤田朱里, 太田淳, 石井琢郎, 香取幸夫, 西條芳文

超音波医学 Supplement, 51, 2024
A Study on Image Quality Improvement of Single Plane Wave Imaging Using Deep Learning

三浦幹太, 設楽裕海, 石井琢郎, 伊藤康一, 青木孝文, 西條芳文, 大宮淳

超音波医学 Supplement, 50, 2023
Deglutition Analysis Method by Template Matching of Ultrasound B-mode Images

川上紗弥香, 澤田朱里, 太田淳, 石井琢郎, 香取幸夫, 西條芳文

電子情報通信学会技術研究報告(Web), 123(214(US2023 37-42)), 2023
安静時および随意収縮時の最大尿道閉鎖圧(max urethral closure pressure:MUCP)に関する比較検討-決定木を用いた機械学習による関連因子解析

柴田千晴, 兪文偉, 布施美樹, 鎌迫智彦, 加賀勘家, 加賀麻祐子, 石塚満, 石井琢朗, 小飼貴彦, 榊原隆次 …

日本排尿機能学会誌(Web), 34(1), 2023
ハイフレームレート超音波撮像による尿道内排尿流動態イメージング

石井琢郎, 石井琢郎, 柴田千晴, 鎌迫智彦, 布施美樹, 加賀勘家, 加賀麻祐子, 西條芳文, 山西友典

日本排尿機能学会誌(Web), 33(1), 2022
High frequency ultrasound / photoacoustic imaging at Tohoku University

西條芳文, 新楯諒, 鈴木陸, 石井琢郎, 荒川元孝, 梅村晋一郎, 吉澤晋, 長岡亮, 小林和人, 根本隆治

超音波医学 Supplement, 49, 2022
Evaluation of Coherence Factor Weighting Methods for Enhancing the Image Quality of Photoacoustic Microscopy

鈴木陸, 新楯諒, 石井琢郎, 石井琢郎, 西條芳文

超音波医学 Supplement, 49, 2022
Comparison of Ultrasound and Photoacoustic Imaging of Cell

SAIJO Yoshifumi, SHINTATE Ryo, KAWAGUCHI Kota, ARAKAWA Mototaka, ISHII Takuro, KANZAKI Makoto, KOBAYASHI Kazuto

日本生体医工学会大会プログラム・抄録集(Web), 60th, 2021
Effect of Coherence Factor Weighting for Improving the Image Quality of an Annular Array Photoacoustic Microscope

SUZUKI Riku, SHINTATE Ryo, ISHII Takuro, SAIJO Yoshifumi

超音波エレクトロニクスの基礎と応用に関するシンポジウム(CD-ROM), 42nd, 2021
3D Ultrasound Imaging by Synthetic Transmit Aperture Beamforming Obtained with a Spherically Curved Array Transducer

HAYASHI Eiki, KANNO Naoya, SHINTATE Ryo, ISHII Takuro, NAGAOKA Ryo, SAIJO Yoshifumi

超音波エレクトロニクスの基礎と応用に関するシンポジウム(CD-ROM), 42nd, 2021
Improvement of Depth of Field of Photoacoustic Microscope Images by Applying Delay and Sum Method to an Annular Array Sensor

鈴木陸, 新楯諒, 石井琢郎, 石井琢郎, 西條芳文

電子情報通信学会技術研究報告(Web), 121(182(US2021 34-39)), 2021
Optical/Photoacoustic Hybrid Microscopy with Deconvolution Processing for Visualizing Morphology and Composition of Cells

SHINTATE Ryo, NAGAOKA Ryo, ISHII Takuro, SAIJO Yoshifumi

超音波エレクトロニクスの基礎と応用に関するシンポジウム(CD-ROM), 41st, 2020
高周波数帯域の光音響信号による細胞レベルのイメージング

西條芳文, 新楯諒, 高橋爽, 平塚竜基, 石井琢郎, 吉澤晋, 梅村晋一郎, 長岡亮, 岩崎秀明, 伊田泰一郎

乳腺甲状腺超音波医学, 9(4), 2020
Comparative study of unidirectional and multidirectional transmission/reception in photoacoustic imaging using concave array probe

高橋爽, 新楯諒, 川口航汰, 菅野尚哉, 佐藤滉太, 石井琢郎, 石井琢郎, 西條芳文

電子情報通信学会技術研究報告(Web), 120(174(US2020 27-42)), 2020
Imaging with Acoustic Resolution Photoacoustic Microscope using Annular Array Transducer

平塚竜基, 高橋爽, 佐藤滉太, 新楯諒, 梅村晋一郎, 石井琢郎, 石井琢郎, 西條芳文

電子情報通信学会技術研究報告(Web), 120(174(US2020 27-42)), 2020
排尿流動態イメージングの実現を目指して

石井琢郎

千葉県泌尿器科医会ニュース, 28 2-3, Jan, 2020 InvitedLead author
Application of Ultrafast Plane Wave Imaging for High-Temporal-Resolution Analysis of Backscattering and Fluid Mechanics

Masaaki Omura, Takuro Ishii, Alfred C.H. Yu, Kenji Yoshida, Tadashi Yamaguchi

2019 IEEE International Ultrasonics Symposium, Oct, 2019 Peer-reviewed
The Deformable Urinary Tract Phantom: A New Testbed for Urodynamic Ultrasound Studies

Takuro Ishii, Hassan Nahas, Adrian J.Y. Chee, Billy Y.S. Yiu, Alfred C.H. Yu

2019 IEEE International Ultrasonics Symposium, Oct, 2019 Peer-reviewedLead author

Presentations

半球型アレイトランスデューサを用いた超音波画像取得

大沼然, 清水雅也, 西前大亮, 鈴木陸, 石井琢郎, 西條芳文

令和７年東北地区若手研究者研究発表会, Mar 8, 2025
超高速高周波超音波撮影とプローブの連続走査を用いたげっ歯類脳血管系の３次元イメージング

金子悦久, 柳下晴也, Anam Bhatti, 西條芳文, 五十嵐敬幸, 石井琢郎

令和７年東北地区若手研究者研究発表会, Mar 8, 2025
2D Matrix ArrayトランスデューサとLEDを用いた3次元光音響イメージングシステムの構築

藤堂桜喜, 清水雅也, 西前大亮, 鈴木陸, 石井琢郎, 西條芳文

令和７年東北地区若手研究者研究発表会, Mar 8, 2025
超音波スペックルトラッキング法を用いた嚥下関連筋の運動解析~嚥下障害患者への応用

太田淳, 澤田朱里, 川上沙也加, 石井琢郎, 鈴木淳, 西條芳文, 香取幸夫

第69回日本超音波医学会東北地方会学術集会, Mar 2, 2025
嚥下関連筋の機能評価を目的とした筋膜運動追跡手法の開発

川上紗弥香, 石井琢郎, 澤田朱里, 太田淳, 香取幸夫, 西條芳文

第69回日本超音波医学会東北地方会学術集会, Mar 2, 2025
Methods for Enhancement and Diameter Evaluation of Microvessels in Acoustic-Resolution Photoacoustic Microscopy

Riku Suzuki, I Gede Eka Sulistyawan, Takuro Ishii, Yoshifumi Saijo

2025 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, Mar 1, 2025
光学走査式光音響顕微鏡における超音波受信面形状の初期検討

西前大亮, 石井琢郎, 小林和人, 西條芳文

第29回（第3期第4回）光音響イメージング技術専門委員会, Feb 28, 2025
光音響イメージングによる微小血管網の高精細化および性状の可視化

鈴木陸, 石井琢郎, 西條芳文

第58回日本生体医工学会東北支部大会, Dec 14, 2024
Wide Field-of-View Vector Flow Imaging with Convex Array using Archimedean-Spiral Wavefronts

Kaya Takakusagi, Kei Mitsui, Riku Suzuki, Takuro Ishii, Yoshifumi Saijo

The 45th Symposium on Ultrasonic Electronics (USE 2024), Nov 27, 2024
RF Signal-Based Tracking of Swallowing-related Muscle Movement

Sayaka Kawakami, Takuro Ishii, Akari Sawada, Jun Ohta, Yukio Katori, Yoshifumi Saijo

The 45th Symposium on Ultrasonic Electronics (USE 2024), Nov 25, 2024
Automatic Detection of Vessel Lumen by RF Signal Analysis of Intravascular Ultrasound

Kohei Maruyama, Takuro Ishii, Riku Suzuki, Anam Bhatti, Hiroyuki Yagami, Yoshifumi Saijo

The 45th Symposium on Ultrasonic Electronics (USE 2024), Nov 25, 2024
Effect of Transmission Patterns on 2C-3D Flow Vector Estimation with a 2D Matrix Array Transducer

Kei Mitsui, Kaya Takakusagi, Takuro Ishii, Yoshifumi Saijo

The 45th Symposium on Ultrasonic Electronics (USE 2024), Nov 25, 2024
Estimation of Oxygen Saturation in Microvessels Using Photoacoustic Microscopy with TwoWavelength Laser

Riku Suzuki, I Gede Eka Sulistyawan, Takuro Ishii, Yoshifumi Saijo

The 45th Symposium on Ultrasonic Electronics (USE 2024), Nov 25, 2024
Photoacoustic Feature Extraction by Two-Stages SVD Adaptive Weighting for Cellular OR-PAM

I Gede Eka Sulistyawan, Takuro Ishii, Riku Suzuki, Daisuke Nishimae, Yoshifumi Saijo

IEEE UFFC-JS 2024, Sep 25, 2024
Estimation of Hemodynamics in a Curved and Obstructed Coronary Artery Model Constructed Using Intravascular Ultrasound Images

Takuro Ishii, Takashi Orihara, Hiroyuki Yagami, Yoshifumi Saijo

IEEE UFFC-JS 2024, Sep 25, 2024
Robust 3D Visualization of Skin Micro-Vessels Based on Signal and Image-Based Feature Extraction on Ultrafast US Dataset Acquired with Continuous Linear Array Translation

Anam Bhatti, Takuro Ishii, Yoshifumi Saijo

IEEE UFFC-JS 2024, Sep 24, 2024
Monitoring of Subcutaneous Drug Diffusion by LED-Based Photoacoustic Imaging

Yuki Ujigawa, Takuro Ishii, Riku Suzuki, I Gede Eka Sulistyawan, Daisuke Nishimae, Yoshifumi Saijo

IEEE UFFC-JS 2024, Sep 23, 2024
超音波ベクターフローイメージングによる経尿道的前立腺吊上術中の尿流動態観察の初期検討

石井琢郎, 加賀勘家

第31回日本排尿機能学会, Sep 7, 2024
下部尿路流動可視化のためのベクターフローイメージングフレームワークの開発

石井琢郎, 西條芳文, Hassan Nahas, Billy Yiu, Alfred Yu

日本超音波医学会第2回基礎技術研究会，第26回レーザー学会光音響イメージング技術専門委員会, Aug 2, 2024
炎症性血管の進行の評価に向けた光音響信号の周波数パラメータ分布の評価

鈴木陸, 板谷信行, 萩原嘉廣, 石井琢郎, 西條芳文

日本超音波医学会第2回基礎技術研究会，第26回レーザー学会光音響イメージング技術専門委員会, Aug 2, 2024

Research Projects

Creation of ultrasound pathology based on biological wave physical properties

Core-to-Core Program, Japan Society for the Promotion of Science, Apr, 2024 - Mar, 2029
Mechanobiology of metastasis

Grants-in-Aid for Scientific Research, Fund for the Promotion of Joint International Research (International Collaborative Research), Japan Society for the Promotion of Science, Sep, 2023 - Mar, 2027
血管内超音波による冠動脈周囲微小血管網の高解像3次元撮像技術

研究助成, 医療機器研究, 公益財団法人テルモ生命科学振興財団, Nov, 2024 - Mar, 2026

石井琢郎
齧歯動物モデルを使った全身流体情報と生理反応の網羅的記録法の開発

学際研究共創プログラム, 東北大学学際科学フロンティア研究所, Jul, 2024 - Mar, 2026

石井琢郎, 五十嵐敬幸
尿道の形態変化と排尿流動態の流体力学的相互作用の解析

科学研究費助成事業, 若手研究, 日本学術振興会, Apr, 2022 - Mar, 2025

石井琢郎
Ultrasound Urodynamic Imaging for Functional Assessment of Lower Urinary Tract Symptoms

Leading Initiative for Excellent Young Researchers, MEXT, Jan, 2020 - Mar, 2024

Takuro Ishii
Development of a novel algorithm for quantitative urodynamics assessment using ultrasound vector flow imaging

Grants-in-Aid for Scientific Research, Grant-in-Aid for Research Activity Start-up, Japan Society for the Promotion of Science, Sep, 2020 - Mar, 2023
生体組織硬さの精密計測・生体外模倣・誘導介入

学際研究共創プログラム, 東北大学学際科学フロンティア研究所, Jul, 2021 - Mar, 2023

楠山譲二, 石井琢郎, 石原誠一郎
尿道内尿流解析による排尿障害治療支援システムの開発

科学研究費補助金(若手研究(B)), 若手研究(B), 文部科学省, 2015 - 2017

石井琢郎
排尿機能評価に向けた、蓄排尿器官の生体モデル構築法の研究

特別研究員奨励費, 特別研究員奨励費, 日本学術振興会, 2012 - 2014

石井琢郎