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

A study on measurement method of viscoelastic property of blood vessel wall aiming at early diagnosis of arteriosclerosis

Research Project

Project/Area Number 21H03835
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90130:Medical systems-related
Research InstitutionTohoku University

Principal Investigator

Arakawa Mototaka  東北大学, 医工学研究科, 准教授 (00333865)

Co-Investigator(Kenkyū-buntansha) 金井 浩  東北大学, 工学研究科, 教授 (10185895)
森 翔平  東北大学, 工学研究科, 助教 (50815149)
高野 真澄  福島県立医科大学, 医学部, 特任教授 (60398344)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2023: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords動脈硬化症 / 血管壁 / 粘弾性特性 / 血流依存性血管拡張反応 / 超音波プローブ
Outline of Research at the Start

血管内皮細胞が障害を受けると、その部分から動脈硬化症は進行する。本研究では、血流依存性血管拡張(FMD)反応に伴って中膜が柔らかくなる現象を評価する高感度計測法ならびに計測システムを新たに開発する。超音波を用いて、経皮的に応力(血圧)-歪み(血管内径変化)のヒステリシス特性を計測し、硬さ(弾性率)や粘り(粘性率)を評価する。本手法により、内皮の障害の程度を非常に高感度に診断できることを示し、従来不可能であった、動脈硬化症の極早期段階における検出を可能とし、動脈硬化症の極早期診断の研究領域を新たに開拓するとともに、高感度の診断法を開発する。

Outline of Final Research Achievements

We investigated the measurement accuracy of viscoelastic moduli estimated from the relationship between blood pressure and vessel diameter acquired by an ultrasonic probe that can simultaneously measure blood pressure and vessel diameter, which we developed, and applied it to in vivo experiments. A blood pressure calibration method using the pulse wave transit time method was investigated. We developed an elastic modulus estimation method that considers changes in the vascular geometry and pressure applied by the probe. A phantom experimental system was constructed to reproduce in vivo conditions, and the dependence of the viscoelastic moduli on minimal blood pressure was investigated. We examined the diastolic blood pressure dependence in in vivo experiments. Hence, we conclude that measuring both the blood pressure and the elastic and viscous moduli would be beneficial in comprehensively investigating more vessel wall properties that change with the progression of arteriosclerosis.

Academic Significance and Societal Importance of the Research Achievements

動脈硬化症の早期発見のために,血管壁の粘弾性特性の評価が重要である.本研究では,これまでに開発した超音波プローブを用いて計測される血管壁の粘弾性率の測定精度を向上させており,学術的に意義があるといえる.また,ファントム実験とin vivo実験を通して,血管壁の粘弾性率の拡張期血圧依存性を明らかにしており,動脈硬化症の進行に伴う血管壁特性の変化を鋭敏に検出するために,拡張期血圧の計測および拍動下における血管壁粘弾性特性の評価が重要であるという知見も得ており,医学的な意義も大きい.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (58 results)

All 2024 2023 2022 2021

All Journal Article (28 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 28 results,  Open Access: 3 results) Presentation (30 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results)

  • [Journal Article] A novel ultrasonic method for measuring minute sinusoidal displacement by network analyzer2024

    • Author(s)
      Yuya Komatsu, Shohei Mori, Mototaka Arakawa, and Hiroshi Kanai
    • Journal Title

      Review of Scientific Instruments

      Volume: 95 Issue: 2 Pages: 1-11

    • DOI

      10.1063/5.0177846

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of Power-Weighted Center of Echo Signal Within Window Function on Local Strain Rate Distribution in Left Ventricular Wall2024

    • Author(s)
      Obara Yu、Mori Shohei、Iwai-Takano Masumi、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Ultrasound in Medicine & Biology

      Volume: 50 Issue: 5 Pages: 768-774

    • DOI

      10.1016/j.ultrasmedbio.2024.01.014

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Speed-of-sound estimation in ultrasound propagation medium by considering size of target scatterer2023

    • Author(s)
      Shohei Mori, Hiroshi Kanai, Mototaka Arakawa
    • Journal Title

      Journal of Medical Ultrasonics

      Volume: - Issue: 2 Pages: 151-165

    • DOI

      10.1007/s10396-023-01282-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrasonic measurement of thickness of carotid arterial wall using its natural longitudinal displacement2023

    • Author(s)
      Nagai Yoshifumi、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SJ Pages: 1-11

    • DOI

      10.35848/1347-4065/acba26

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-speed measurement of two-dimensional displacement of myocardium using element RF data of ultrasonic probe2023

    • Author(s)
      Hara Kaisei、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SJ Pages: 1-12

    • DOI

      10.35848/1347-4065/acc112

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Internal pressure dependence on viscoelasticity of arterial wall by ultrasonic measurement2023

    • Author(s)
      Suzuki Saki、Mori Shohei、Iwai-Takano Masumi、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SJ Pages: 1-8

    • DOI

      10.35848/1347-4065/acbf5d

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrasonic measurement of carotid luminal surface roughness with removal of axial displacement caused by blood pulsation2023

    • Author(s)
      Yamane Ryota、Mori Shohei、Arakawa Mototaka、Wilhjelm Jens E.、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SJ Pages: 1-8

    • DOI

      10.35848/1347-4065/acc07a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantification of limitations in statistical analysis of ultrasound echo envelope amplitudes2023

    • Author(s)
      Mori Shohei、Arakawa Mototaka、Kanai Hiroshi、Hachiya Hiroyuki
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SJ Pages: 1-13

    • DOI

      10.35848/1347-4065/acc33e

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The usefulness of a gray-level co-occurrence matrix based on the polar coordinate system for the quantitative evaluation of neutrophil cytoplasmic granules2023

    • Author(s)
      Mai Yamamoto, Satoru Murakami, Iori Nakamura, Haruhi Ida, Hiromi Masauzi, Keiko Miwa, Kazunori Okada, Sanae Kaga, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai, and Nobuo Masauzi
    • Journal Title

      北海道医学会雑誌

      Volume: 98 Pages: 81-104

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimizing irradiation conditions for low-intensity pulsed ultrasound to upregulate endothelial nitric oxide synthase2023

    • Author(s)
      Daiki Ouchi, Shohei Mori, Mototaka Arakawa, Tomohiko Shindo, Hiroaki Shimokawa, Satoshi Yasuda, and Hiroshi Kanai
    • Journal Title

      Journal of Medical Ultrasonics

      Volume: 51 Issue: 1 Pages: 39-48

    • DOI

      10.1007/s10396-023-01382-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimation error in speed of sound caused by rotation of measured cross-section from short-axis plane of blood vessels: a preliminary study2023

    • Author(s)
      Shohei Mori, Keiji Onoda, Mototaka Arakawa, Hiroshi Kanai
    • Journal Title

      Journal of Medical Ultrasonics

      Volume: 51 Issue: 1 Pages: 49-57

    • DOI

      10.1007/s10396-023-01383-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Automated mode chart generation for finite element analysis of piezoelectric resonators using principal component analysis based on clustering2023

    • Author(s)
      Kenji Inoue, Yuji Ohashi, Mototaka Arakawa, and Hiroshi Kanai
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: 1 Pages: 1-11

    • DOI

      10.35848/1347-4065/ad12f0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In vivo measurement of attenuation coefficient of blood in a dorsal hand vein in a frequency range of 10?45?MHz: A preliminary study2023

    • Author(s)
      Arakawa Mototaka、Higashiyama Kyohei、Mori Shohei、Yashiro Satoshi、Ishigaki Yasushi、Kanai Hiroshi
    • Journal Title

      Frontiers in Physics

      Volume: 11 Pages: 1-7

    • DOI

      10.3389/fphy.2023.1077696

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lateral M-Mode: Ultrasound Visualization of Displacement Along Longitudinal Direction at Intima-Media Complex2023

    • Author(s)
      Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Ultrasound in Medicine and Biology

      Volume: 49 Issue: 3 Pages: 875-888

    • DOI

      10.1016/j.ultrasmedbio.2022.11.014

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Appropriate Window Function and Window Length in Multifrequency Velocity Estimator for Rapid Motion and Locality of Layered Myocardium2022

    • Author(s)
      Obara Yu、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

      Volume: 69 Issue: 4 Pages: 1353-1369

    • DOI

      10.1109/tuffc.2022.3153048

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accurate measurement of elasticity of the radial artery wall considering changes in cross-sectional shape of artery caused by pushing pressure applied by ultrasound probe2022

    • Author(s)
      Shoji Yuto、Mori Shohei、Arakawa Mototaka、Ohba Shigeo、Kobayashi Kazuto、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SG Pages: 1-9

    • DOI

      10.35848/1347-4065/ac4e4a

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimation of aggregate size of red blood cell by introducing reference power spectrum measured for hemispherical ultrafine wire2022

    • Author(s)
      Higashiyama Kyohei、Mori Shohei、Arakawa Mototaka、Yashiro Satoshi、Ishigaki Yasushi、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SG Pages: 1-10

    • DOI

      10.35848/1347-4065/ac4683

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improving axial resolution of medical ultrasound images by using noise-robust broadband filter based on singular value decomposition2022

    • Author(s)
      Kawamata Kenta、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SG Pages: 1-11

    • DOI

      10.35848/1347-4065/ac5a2c

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transmission conditions for clear depiction of thoracic spine based on difference between reflection and scattering characteristics of medical ultrasound2022

    • Author(s)
      Bando Taiga、Mori Shohei、Arakawa Mototaka、Onishi Eiko、Yamauchi Masanori、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SG Pages: 1-10

    • DOI

      10.35848/1347-4065/ac51c0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of local changes in radio-frequency signal waveform and brightness caused by vessel dilatation for ascertaining reliability of elasticity estimation inside heterogeneous plaque: a preliminary study2022

    • Author(s)
      Haji Yuta、Mori Shohei、Arakawa Mototaka、Yamagishi Toshio、Kanai Hiroshi
    • Journal Title

      Journal of Medical Ultrasonics

      Volume: 49 Issue: 4 Pages: 529-543

    • DOI

      10.1007/s10396-022-01229-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Application of low-complexity generalized coherence factor to in vivo data2022

    • Author(s)
      Hisatsu Masanori、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Journal of Medical Ultrasonics

      Volume: 49 Issue: 4 Pages: 555-567

    • DOI

      10.1007/s10396-022-01243-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of error factors depending on ultrasonic transmitted beamwidth in measurement of myocardial minute velocity2021

    • Author(s)
      Sugahara Kana、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SD Pages: 1-3

    • DOI

      10.35848/1347-4065/abef0e

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accuracy verification in ultrasonic elasticity measurement within intima-media complex visible range using phantom experimental system2021

    • Author(s)
      Akiyama Seira、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SD Pages: 1-7

    • DOI

      10.35848/1347-4065/abef0d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stabilization of red blood cell aggregation evaluation using short-axis view of vein of ultrasound2021

    • Author(s)
      Fukase Akiyo、Higashiyama Kyohei、Mori Shohei、Arakawa Mototaka、Yashiro Satoshi、Ishigaki Yasushi、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SD Pages: 1-4

    • DOI

      10.35848/1347-4065/abf3d5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A study on differentiation of depiction between scatterer and reflector to assist epidural anesthesia by ultrasound2021

    • Author(s)
      Hashimoto Takumi、Mori Shohei、Arakawa Mototaka、Onishi Eiko、Yamauchi Masanori、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SD Pages: 1-10

    • DOI

      10.35848/1347-4065/abf4a3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimation error in sound velocity depending on size of target scatterer2021

    • Author(s)
      Nakayama Aoi、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SD Pages: 1-6

    • DOI

      10.35848/1347-4065/abf39e

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Low-complexity generalized coherence factor estimated from binarized signals in ultrasound beamforming2021

    • Author(s)
      Hisatsu Masanori、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Journal of Medical Ultrasonics

      Volume: 48 Issue: 3 Pages: 259-272

    • DOI

      10.1007/s10396-021-01089-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strain Rate Distribution in Layered Myocardium Measured Using Local Velocity Estimator with Multifrequency Phase Differences2021

    • Author(s)
      Obara Yu、Mori Shohei、Arakawa Mototaka、Kanai Hiroshi
    • Journal Title

      Ultrasound in Medicine & Biology

      Volume: 47 Issue: 9 Pages: 2768-2773

    • DOI

      10.1016/j.ultrasmedbio.2021.05.021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 超音波による血圧計測のための内圧・プローブ押圧と管断面形状の関係に関するファントム実験系での検討2024

    • Author(s)
      石川 諒, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      日本音響学会 2024年春季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Preliminary Study on Ultrasonic Visualization of Myocardial Contraction and Relaxation Based on Local Strain Rate2023

    • Author(s)
      Yu Obara, Shohei Mori, Masumi Iwai-Takano, Mototaka Arakawa, and Hiroshi Kanai
    • Organizer
      2023 IEEE International Ultrasonics Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial Frequency Analysis of Luminal Surface Roughness of the Carotid Artery Measured by Ultrasound2023

    • Author(s)
      Ryota Yamane, Shohei Mori, Mototaka Arakawa, Jens E. Wilhjelm, and Hiroshi Kanai
    • Organizer
      2023 IEEE International Ultrasonics Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超音波による血管粘弾性特性の内圧依存性のin vivo計測2023

    • Author(s)
      鈴木沙綺, 森 翔平, 高野真澄, 荒川元孝, 金井 浩
    • Organizer
      日本超音波医学会第96回学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超音波による粘弾性特性計測のファントム実験系における内圧と血管形状に関する検討2023

    • Author(s)
      石川 諒, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      2023年度電気関係学会東北支部連合大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超音波計測を用いた血管模擬ファントムにおける圧力と断面形状の関係に関する検討2023

    • Author(s)
      石川 諒, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      日本超音波医学会第66回東北地方会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 血管壁粘弾性特性の血圧依存性の超音波計測2023

    • Author(s)
      鈴木沙綺, 森 翔平, 高野真澄, 荒川元孝, 金井 浩
    • Organizer
      第107回超音波エレクトロニクス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 橈骨動脈の粘弾性特性推定のための超音波プローブの押圧と橈骨動脈断面形状の関係に関する検討2023

    • Author(s)
      石川 諒, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      令和5年東北地区若手研究者研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 血管壁の粘弾性特性推定のための超音波プローブ押圧下における橈骨動脈断面形状の時間変化の計測2023

    • Author(s)
      石川 諒, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      日本超音波医学会第65回東北地方会学術集会,
    • Related Report
      2022 Annual Research Report
  • [Presentation] Elasticity measurement of radial arterial wall considering vessel shape change caused by pushing pressure applied by ultrasonic probe2022

    • Author(s)
      Mototaka Arakawa, Yuto Shoji, Shohei Mori, Shigeo Ohba, Kazuto Kobayashi, Hiroshi Kanai
    • Organizer
      2022 IEEE International Ultrasonics Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of size of red blood cell aggregates using reference power spectra2022

    • Author(s)
      Mototaka Arakawa, Kyohei Higashiyama, Rina Takeyama, Shohei Mori, Satoshi Yashiro, Yasushi Ishigaki, Hiroshi Kanai
    • Organizer
      2022 IEEE International Ultrasonics Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local measurement of instantaneous change in myocardial thickness in swine heart during acute myocardial ischemia2022

    • Author(s)
      Yu Obara, Shohei Mori, Masumi Iwai-Takano, Mototaka Arakawa, Susumu Morosawa, Tomohiko Shindo, Hiroaki Yamamoto, Satoshi Yasuda, Hiroaki Shimokawa, Hiroshi Kanai
    • Organizer
      2022 IEEE International Ultrasonics Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 血管内皮機能評価を目指した単一超音波プローブを用いた動脈壁粘弾性特性の計測2022

    • Author(s)
      荒川元孝, 庄司悠人, 森 翔平, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      日本超音波医学会第95回学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 弾性率計測値の信頼性評価を目指した頸動脈粥腫の輝度変化分布の観察2022

    • Author(s)
      土師佑太, 森 翔平, 荒川元孝, 山岸俊夫, 金井 浩
    • Organizer
      日本超音波医学会第95回学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 単一超音波プローブ押圧下における血管形状の変化を考慮した橈骨動脈壁の弾性率計測2022

    • Author(s)
      庄司悠人, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      日本超音波医学会第95回学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 超音波を用いた血管粘弾性推定における内圧の影響の検討2022

    • Author(s)
      鈴木沙綺, 森 翔平, 荒川元孝, 金井 浩
    • Organizer
      日本超音波医学会第64回東北地方会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 超音波による血管粘弾性計測値の内圧依存性に関する検討2022

    • Author(s)
      鈴木沙綺, 森 翔平, 高野真澄, 荒川元孝, 金井 浩
    • Organizer
      第43回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
    • Related Report
      2022 Annual Research Report
  • [Presentation] 超音波プローブ押圧下における橈骨動脈の粘弾性特性推定における血管形状計測に関する検討2022

    • Author(s)
      石川 諒, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      第5回東北地区音響学研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Importance of compensation of delay time in pressure measurement for accuracy verification system in ultrasonic elasticity measurement of artery wall2021

    • Author(s)
      Saki Suzuki, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai
    • Organizer
      2021 IEEE International Ultrasonics Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of displacement of carotid artery perpendicular to ultrasound beam direction caused by pulsation on ultrasound measurement of local elasticity in plaque2021

    • Author(s)
      Yuta Haji, Shohei Mori, Mototaka Arakawa, Toshio Yamagishi, Hiroshi Kanai
    • Organizer
      2021 IEEE International Ultrasonics Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local measurement of myocardial strain rate distribution using multifrequency phased tracking velocity estimator2021

    • Author(s)
      Yu Obara, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai
    • Organizer
      2021 IEEE International Ultrasonics Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Preliminary study on estimation of speed of sound in propagation medium considering target scatterer size2021

    • Author(s)
      Shohei Mori, Aoi Nakayama, Keiji Onoda, Mototaka Arakawa, Hiroshi Kanai
    • Organizer
      2021 IEEE International Ultrasonics Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A novel method for depicting thoracic spine using difference between scattering of muscle tissues and reflection at bone surface2021

    • Author(s)
      Mototaka Arakawa, Takumi Hashimoto, Taiga Bando, Shohei Mori, Eiko Onishi, Masanori Yamauchi, Hiroshi Kanai
    • Organizer
      2021 IEEE International Ultrasonics Symposium
    • Related Report
      2021 Annual Research Report
  • [Presentation] 内膜中膜複合体の可視範囲内における弾性率計測の精度検証2021

    • Author(s)
      秋山星来, 鈴木沙綺, 森 翔平, 荒川元孝, 金井 浩
    • Organizer
      日本超音波医学会第94回学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ファントム実験系における超音波による血管壁の粘弾性計測2021

    • Author(s)
      鈴木沙綺, 森 翔平, 荒川元孝, 金井 浩
    • Organizer
      2021年度電気関係学会東北支部連合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超音波による頸動脈粥腫内部の局所変位計測の信頼性評価法2021

    • Author(s)
      土師佑太, 森 翔平, 荒川元孝, 山岸俊夫, 金井 浩
    • Organizer
      日本超音波医学会第62回東北地方会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超音波プローブの押圧による血管断面形状の変化を考慮した橈骨動脈壁弾性計測2021

    • Author(s)
      庄司悠人, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      第42回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
    • Related Report
      2021 Annual Research Report
  • [Presentation] 弾性率計測の精度向上を目指した頸動脈粥腫内部の局所変位計測結果の信頼性評価2021

    • Author(s)
      土師佑太, 森 翔平, 荒川元孝, 山岸俊夫, 金井 浩
    • Organizer
      第42回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
    • Related Report
      2021 Annual Research Report
  • [Presentation] 単一の超音波プローブ押圧下における血管形状の変化を考慮した橈骨動脈壁弾性計測2021

    • Author(s)
      庄司悠人, 森 翔平, 荒川元孝, 大庭茂男, 小林和人, 金井 浩
    • Organizer
      第105回超音波エレクトロニクス研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超音波局所計測による頸動脈粥腫内部組織の性状評価法に関する検討2021

    • Author(s)
      土師佑太, 森 翔平, 荒川元孝, 山岸俊夫, 金井 浩
    • Organizer
      第105回超音波エレクトロニクス研究会
    • Related Report
      2021 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi