Updated on 2024/04/26

写真a

 
KONDO Tatsuya
 
Organization
Academic Assembly Institute of Medicine and Dentistry Health Sciences Assistant Professor
Faculty of Medicine School of Health Sciences Radiological Technology Assistant Professor
Title
Assistant Professor
External link

Degree

  • 保健学修士 ( 2013.3   新潟大学 )

Research Interests

  • MRI

  • 放射線技術科学

Research Areas

  • Life Science / Radiological sciences

Research History (researchmap)

  • Niigata University   Faculty of Medicine School of Health Sciences   Assistant Professor

    2018.2

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Research History

  • Niigata University   Faculty of Medicine School of Health Sciences Radiological Technology   Assistant Professor

    2018.2

Education

  • Niigata University   大学院保健学研究科博士後期課程

    2015.4 - 2020.3

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  • Niigata University   大学院保健学研究科博士前期課程

    2011.4 - 2013.3

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  • Niigata University   医学部保健学科   放射線技術科学専攻

    2007.4 - 2011.3

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Papers

  • Development of a Patient–Radiopharmaceutical Matching System Using Smartphone to Prevent Misadministration: Feasibility Study Reviewed

    Sato Mitsuru, Hoshino Hiromitsu, Shimizu Masataka, Daisaki Hiromitsu, Ichikawa Shota, Kondo Tatsuya, Okamoto Masashi

    RADIOISOTOPES   73 ( 1 )   69 - 80   2024.3

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    Language：Japanese   Publisher：Japan Radioisotope Association  

    We designed a patient–radiopharmaceutical matching system for preventing misadministration using smartphone, and developed a deep-learning model to identify radiopharmaceutical containers as an elemental technology for the system. As a result of the ResNet18 transfer learning and 10-fold cross-validation, this model achieved 100％ accuracy in classifying 15 different radiopharmaceutical containers. The feasibility of the proposed system was proven.

    DOI： 10.3769/radioisotopes.73.69

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  • MR画像に生じる打ち切りアーチファクトの基礎検討 Reviewed

    近藤 達也, 野間 優希, 八木 悠太, 齋藤 宏明, 金沢 勉

    医用画像情報学会雑誌   40 ( 3 )   43 - 47   2023.9

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)  

    DOI： 10.11318/mii.40.43

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  • Development of a new body weight estimation method using head CT scout images. Reviewed International journal

    Tatsuya Kondo, Manami Umezu, Yohan Kondo, Mitsuru Sato, Tsutomu Kanazawa, Yoshiyuki Noto

    Journal of X-ray science and technology   31 ( 5 )   1079 - 1091   2023.9

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

    BACKGROUND: Imaging examinations are crucial for diagnosing acute ischemic stroke, and knowledge of a patient's body weight is necessary for safe examination. To perform examinations safely and rapidly, estimating body weight using head computed tomography (CT) scout images can be useful. OBJECTIVE: This study aims to develop a new method for estimating body weight using head CT scout images for contrast-enhanced CT examinations in patients with acute ischemic stroke. METHODS: This study investigates three weight estimation techniques. The first utilizes total pixel values from head CT scout images. The second one employs the Xception model, which was trained using 216 images with leave-one-out cross-validation. The third one is an average of the first two estimates. Our primary focus is the weight estimated from this third new method. RESULTS: The third new method, an average of the first two weight estimation methods, demonstrates moderate accuracy with a 95% confidence interval of ±14.7 kg. The first method, using only total pixel values, has a wider interval of ±20.6 kg, while the second method, a deep learning approach, results in a 95% interval of ±16.3 kg. CONCLUSIONS: The presented new method is a potentially valuable support tool for medical staff, such as doctors and nurses, in estimating weight during emergency examinations for patients with acute conditions such as stroke when obtaining accurate weight measurements is not easily feasible.

    DOI： 10.3233/XST-230087

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  • [Evaluation of a Bone Coordinate System Constructed Using MR Image Composing]. Reviewed

    Tatsuya Kondo, Yuta Yagi, Hiroaki Saito, Tsutomu Kanazawa, Yutaro Saito

    Nihon Hoshasen Gijutsu Gakkai zasshi   78 ( 6 )   593 - 598   2022.6

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    Authorship：Lead author   Language：Japanese   Publisher：Japanese Society of Radiological Technology  

    PURPOSE: To evaluate the accuracy of a bone coordinate system constructed using MR image composing. METHOD: A femoral coordinate system constructed using image composing of MR images of a whole bovine femur was evaluated using CT images. The MR images were acquired by moving the table and were processed with 3D distortion correction and composing. To evaluate the reproducibility of the measurements, the same operator repeated the construction of the femoral coordinate system. In addition, distortions in the MR images were evaluated in comparison with those in the CT images. RESULT: The center position of the femoral coordinate system constructed using the MR image composing was 1.6±0.9 mm on the X-axis, 1.5±0.8 mm on the Y-axis, and 0.2±0.3 mm on the Z-axis, and the rotation of each axis was 1° or less. The distortion of the composed MR image was about 0.3%. CONCLUSION: The femoral coordinate system constructed using MR image composing had the same accuracy as a system constructed with CT images. The effect of MR image composing on the construction of the femoral coordinate system was small.

    DOI： 10.6009/jjrt.2022-1232

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    Other Link： https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K17193/

  • A Dynamic Method of Measuring the Length of the Patellar Tendon Using Cine Magnetic Resonance Imaging Reviewed

    Tatsuya Kondo, Makoto Sakamoto, Koichi Kobayashi, Surangika Wadugodapitiya

    Advanced Experimental Mechanics   4   157 - 162   2019.4

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    Authorship：Lead author   Language：English  

    DOI： 10.11395/aem.4.0_157

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  • Evaluation of permanent and primary enamel and dentin mineral density using micro-computed tomography. Reviewed

    Sachiko Hayashi-Sakai, Makoto Sakamoto, Takafumi Hayashi, Tatsuya Kondo, Kaito Sugita, Jun Sakai, Junko Shimomura-Kuroki, Makiko Ike, Yutaka Nikkuni, Hideyoshi Nishiyama

    Oral radiology   35 ( 1 )   29 - 34   2019.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    OBJECTIVES: The present study was performed to investigate the mineral density distribution in enamel and dentin for both permanent and primary teeth and to establish the standard density per tooth type using micro-computed tomography (CT). METHODS: Fifty-seven extracted human teeth (37 permanent, 20 primary) were evaluated in the present study. The enamel and dentin mineral densities in the extracted teeth were measured using micro-CT. Cubic regression curves were used to determine the mineral density distribution in the enamel and dentin for each tooth type. RESULTS: The mean values, distributions, and regression equations of the mineral densities were obtained. The mean mineral density values for permanent enamel and dentin were significantly higher than those for their primary counterparts for each tooth type. CONCLUSIONS: In the present study, we demonstrated the distribution of mineral density in sound enamel and dentin and attempted to determine the standard mineral density for each tooth type using micro-CT. The mineral density distributions found in this study contribute to our understanding of the mechanical properties of enamel and dentin. A positive correlation suggests that the systemic bone mineral density could be predicted based on the analysis of exfoliated teeth, such as in patients with hypophosphatasia. The present results may be useful in establishing a numerical standard for the mechanism involved in root fracture and for early detection of root fracture risk.

    DOI： 10.1007/s11282-018-0315-2

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  • Evaluation of trochlear nerve using the 3D-Constructive Interference in Steady State at 3T-MRI Reviewed

    金沢勉, 金沢勉, 大久保真樹, 近藤達也, 近藤達也, 岩崎友也, 高橋直也

    新潟大学保健学雑誌   15 ( 1 )   49 - 56   2018.3

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    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)  

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    Other Link： http://id.ndl.go.jp/bib/028995428

  • Improved wedge method for the measurement of sub-millimeter slice thicknesses in magnetic resonance imaging. Reviewed

    Tsutomu Kanazawa, Masaki Ohkubo, Tatsuya Kondo, Takayuki Miyazawa, Shoichi Inagawa

    Radiological physics and technology   10 ( 4 )   446 - 453   2017.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    The standard method for measuring the slice thickness of magnetic resonance images uses the inclined surface of a wedge (wedge method); it is sensitive to small increases in noise because of the differentiation of the edge response function (ERF) required. The purpose of this study was to improve the wedge method by fitting a curve to the ERF. The curve-fit function was obtained by convolving an ideal ERF (a ramp function) with a Gaussian function to represent ERF blurring. Measurements of 5- and 3-mm slice thicknesses were performed on a 3T scanner using the conventional wedge method, the improved wedge method, and another standard method using an inclined slab (slab method). Subsequently, 0.5- and 0.25-mm slice thicknesses from multiple slices acquired using a three-dimensional sequence were measured using the improved wedge method. When measuring 5-mm slices, the differences in measurements obtained using the improved wedge method and the conventional slab and wedge methods were very small: <0.6% of the 5-mm slice thickness. The difference was ≤1.7% for 3-mm slices. For 0.5- and 0.25-mm slices, the mean values obtained using the improved wedge method were 0.543 ± 0.007 mm and 0.247 ± 0.015 mm, with a 1.2 and 5.9% coefficient of variation across slices, respectively. The improved wedge method is valid and potentially applicable to the measurement of sub-millimeter slice thicknesses.

    DOI： 10.1007/s12194-017-0417-2

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  • Measurement of thin slice thickness in MRI using an improved wedge method Reviewed

    Kanazawa T, Ohkubo M, Kondo T

    European Congress of Radiology   C-1063   1 - 14   2017.3

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  • 示指近位指節間関節における接触領域のMRIによる三次元生体内解析 Reviewed

    風間清子, 坂本信, 森清友亮, 小林公一, 近藤達也, 田邊裕治

    臨床バイオメカニクス   37   103 - 108   2016.9

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  • In Vivo Biomechanical Analysis of Human Posterior Cruciate Ligament during Knee Flexion Using Magnetic Resonance Imaging Reviewed

    KONDO Tatsuya, KOBAYASHI Koichi, SAKAMOTO Makoto

    Journal of the Japanese Society for Experimental Mechanics   16 ( 2 )   127 - 133   2016.7

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    Authorship：Lead author   Language：Japanese   Publisher：The Japanese Society for Experimental Mechanics  

    The posterior cruciate ligament (PCL) functions as the primary restraint to posterior tibial movement and the stabilizer for axial rotation of the knee joint. It is, therefore, important to know the mechanical characteristics of the PCL. The objective of this study was to evaluate the in vivo characteristics of the three-dimensional (3D) deformation and orientation of the PCL during knee flexion using magnetic resonance imaging (MRI). Ten normal knees were visualized using MRI at full extension (FE), 10°, 20°, 30° and 60° of static knee flexion. The length, strain, elevation and deviation of the PCL were measured using the 3D models of the femur, tibia and PCL reconstructed from the MR images. The PCL length was measured in three portions (Medial: M, Central: C, Lateral: L) to consider its 3D shape. Tendencies of the PCL elongation and strain during knee flexion were different among these 3 portions. The PCL length in M portion was shortest in 10° or 20° and extended in FE and 60°. The PCL length in L portion, on the other hand, extended from FE to 60°. These 3D deformation characteristics were consisted with the changes in the elevation and deviation of the PCL during knee flexion.

    DOI： 10.11395/jjsem.16.127

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  • Development of phantom for quantitative analyses of human dentin mineral density. Reviewed International journal

    Sachiko Hayashi-Sakai, Tatsuya Kondo, Yuto Kasuga, Makoto Sakamoto, Hideaki Endo, Jun Sakai

    Bio-medical materials and engineering   26 ( 1-2 )   57 - 65   2015.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    The purpose of the present study was to develop a novel-designed phantom that could be scanned with a sample in the same image, that specialize for quantitative analyses of human dentin mineral density using the X-ray attenuation method. A further attempt was made to demonstrate the intracoronal dentin mineral density using this phantom in mandibular incisors. The phantom prepared with a 15 mm hole in the center of an acrylic resin bar having an outside diameter of 25 mm and 8 small holes (diameter, 3 mm) were made at equal intervals around the center. Liquid dipotassium hydrogen phosphate (K2HPO4) solutions were established at 0.4, 0.6, 0.8 and 1.0 g/cm3, and were arranged to these holes. The mean value of the intracoronal dentin mineral density was 1.486 ± 0.016 g/cm3 in the present study. As the results of the present study corresponded to previous reports, this new phantom was considered to be useful. This phantom enables the analysis of samples that are not readily available by conventional mechanical tests and may facilitate biomechanical investigations using X-ray images. It was suggested that this system is a simple, accurate and novel mineralization measuring system.

    DOI： 10.3233/BME-151545

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MISC

  • 打ち切りアーチファクトがTurbulent Kinetic Energyに与える影響

    近藤達也, 金沢勉, 齋藤宏明, 八木悠太, 松島元康

    日本放射線技術学会総会学術大会予稿集   79th   2023

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  • Modulation Transfer Functionを利用した3D TSE法のスライスエンコード方向における解像特性評価法の検討

    加茂隆太, 近藤達也, 齋藤宏明, 金沢勉, 八木悠太

    日本放射線技術学会雑誌   79 ( 9 )   2023

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  • Phase Contrast MRIを用いた流速測定における打ち切りアーチファクトの影響

    近藤達也, 金沢勉, 斉藤宏明, 八木悠太

    日本放射線技術学会総会学術大会予稿集   78th   2022

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  • MRIによる大腿骨全長を用いた大腿骨座標系構築法の提案

    近藤達也, 金沢勉, 斉藤宏明, 八木悠太, 斎藤祐太朗

    日本放射線技術学会総会学術大会予稿集   77th   2021

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  • 最適化された3D FLAIR Imageの臨床画像評価

    齋藤宏明, 八木悠太, 近藤達也, 金沢勉

    日本放射線技術学会総会学術大会予稿集   76th   2020

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  • 2D MRIと3D MRIにおける膝蓋腱の長さ測定の比較

    古屋咲子, 近藤達也, 坂本信

    日本放射線技術学会東北支部雑誌(Web)   2020

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    Language：Japanese   Publisher：(公社)日本放射線技術学会-東北支部  

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  • Investigation on Distribution of Radioactive Substances in Fukushima (3) Relationship Between Dose Rates and Radioactivity Measured on Roads

    後藤淳, 高橋剛, 近藤達也, 吉田秀義

    日本原子力学会秋の大会予稿集(CD-ROM)   2020

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  • Phase Contrast cine MRIの流量測定に対するROIと収集マトリクス数の影響

    高見澤水穂, 近藤達也, 金沢勉, 斎藤宏明, 八木悠太

    日本放射線技術学会東北支部雑誌(Web)   2020

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  • ワンショットエネルギーサブトラクション処理における撮影時間の影響

    宮澤幸太郎, 齋藤宏明, 奥井順也, 近藤達也

    日本放射線技術学会東北支部雑誌(Web)   2020

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    Language：Japanese   Publisher：(公社)日本放射線技術学会-東北支部  

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  • Introduction of Car-borne Survey Results using ASURA

    後藤淳, 高橋剛, 近藤達也, 大野健, 吉田秀義

    日本放射線安全管理学会学術大会講演予稿集   18th (CD-ROM)   2019

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  • Phase Contrast Cine MRIにおける空間分解能が流量値へ及ぼす影響

    八木悠太, 近藤達也, 齋藤宏明, 堀井陽祐, 金沢勉

    日本放射線技術学会雑誌   75 ( 9 )   2019

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  • MRIの3次元撮像法とCine法のイメージマッチングを用いた膝蓋腱の長さ変化測定

    近藤達也, 坂本信, 小林公一, 金沢勉, 斉藤宏明

    日本放射線技術学会総会学術大会予稿集   75th   2019

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  • 3D FLAIR ImagingにおいてCSF Artifact抑制を目的とした撮像条件の検討

    斉藤宏明, 近藤達也, 八木悠太, 金沢勉

    日本放射線技術学会総会学術大会予稿集   75th   2019

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  • 個人被ばく線量簡易推定アプリの開発 開発目的と計画,初めの6ヶ月でできたこと

    高橋剛, 後藤淳, 近藤達也, 須川賢洋, 狩野直樹, 吉田浩子, 大野健, 織部祐介, 吉田秀義

    日本原子力学会秋の大会予稿集(CD-ROM)   2019

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  • 福島における放射性物質分布調査(3)自動車走行サーベイシステムASURAを用いた国道6号線における高位置分解能調査

    後藤淳, 高橋剛, 千石周, 近藤達也, 吉田秀義

    日本原子力学会秋の大会予稿集(CD-ROM)   2019

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  • Keyholeを用いた肝臓MRI検査の動脈相多時相撮像におけるリンギングアーチファクトのシミュレーション

    近藤達也, 金沢勉, 斉藤宏明

    日本放射線技術学会東北支部雑誌(Web)   2017

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  • 肝細胞造影相における呼吸同期併用3D FSPGRの冠状断撮像条件の最適化

    斉藤宏明, 金沢勉, 近藤達也, 内藤健一

    日本放射線技術学会総会学術大会予稿集   72nd   2016

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  • MR動態ファントムを用いた加算回数増加によるモーションアーチファクト低減効果を利用した撮像条件の検討

    近藤達也, 金沢勉, 斉藤宏明, 野島佑太

    日本放射線技術学会雑誌   72 ( 9 )   2016

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  • 心電図同期3D-TSEを用いた非造影MRAの胸腹部領域への応用

    野島佑太, 金沢勉, 斉藤宏明, 近藤達也

    日本放射線技術学会東北支部雑誌   2016

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  • 核磁気共鳴画像を用いたヒト示指近位指節間関節の三次元生体内接触挙動解析

    坂本信, 森清友亮, 風間清子, 近藤達也, 小林公一, 田邊裕治

    日本実験力学会講演論文集   ( 16 )   2016

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  • 1F16 In Vivo Three-Dimensional Analysis of the Contact Motion Behavior of the Proximal Interphalangeal Joint of the Index Finger Using MRI

    MORISE Yusuke, SAKAMOTO Makoto, KAZAMA Kiyoko, KONDO Tatsuya, KOBAYASHI Koichi, TANABE Yuji

    The Proceedings of the Bioengineering Conference Annual Meeting of BED/JSME   28th   _1F16-1_ - _1F16-3_   2016

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    The proximal interphalangeal (PIP) joint of the finger are formed by the articulation between the proximal phalanges head (PPH) and the middle phalanges base (MPB). The PPH has two rounded condyles, separated by a shallow central groove. The opposing surface of the MPB has two shallow concave facets separated by a central ridge. Determination of distribution of joint contact and joint motion are necessary to understanding the progression of joint deterioration and to the design of appropriate implants for finger joint arthroplasty. Traditionally, such data have been obtained from in vitro study of cadaveric specimens. Magnetic resonance imaging (MRI) has recently been shown to be a valid method of quantifying the joint contact area, indicating the potential for in vivo assessment. In the present study, we adapted an MRI system to study the three-dimensional in vivo articular cartilage contact areas and contact distributions of the PIP joint of the index finger on adopting three flexion angles.

    DOI： 10.1299/jsmebio.2016.28._1f16-1_

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  • MR撮像シミュレーションを用いた加算回数増加によるモーションアーチファクト低減の有用性の検討

    近藤達也, 金沢勉, 金沢勉, 斉藤宏明, 野島佑太, 野島佑太

    日本放射線技術学会総会学術大会予稿集   71st   2015

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  • 可変フリップ角を用いた造影頭部3D-TSE T1WIの撮像条件の最適化

    金沢勉, 金沢勉, 斎藤宏明, 野島佑太, 近藤達也, 内藤健一

    日本放射線技術学会総会学術大会予稿集   71st   2015

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  • 回内・回外時の橈骨-尺骨間運動の3次元生体内解析-肘関節伸展位と屈曲位での比較-

    風間清子, 風間清子, 近藤達也, 小林公一, 坂本信

    日本放射線技術学会雑誌   71 ( 9 )   2015

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  • ds SENSEアルゴリズムによる折り返しアーチファクトに対する基礎検討

    松本竜太, 金沢勉, 斉藤宏明, 野島佑太, 近藤達也

    日本診療放射線技師会誌   62 ( 11 )   2015

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  • MR撮像シミュレーションを用いた加算回数増加によるモーションアーチファクト低減効果の検討

    近藤達也, 金沢勉, 斉藤宏明, 野島佑太

    日本放射線技術学会東北部会雑誌   ( 24 )   2015

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  • 拡散強調画像における脂肪抑制法がADC値に与える影響についての基礎検討

    野島佑太, 金沢勉, 斉藤宏明, 近藤達也

    日本放射線技術学会東北部会雑誌   ( 24 )   2015

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  • 呼吸同期併用3D-TSEを用いた胸腹部非造影MRAの検討

    野島佑太, 金沢勉, 斉藤宏明, 近藤達也

    日本放射線技術学会雑誌   71 ( 9 )   2015

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  • 3T MRIでの拡散強調画像におけるIR併用水選択励起による脂肪抑制法の基礎的検討

    野島佑太, 金沢勉, 斉藤宏明, 近藤達也

    日本放射線技術学会東北部会雑誌   ( 24 )   2015

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  • 示指中手指節間関節の接触挙動のMRIによる生体内解析

    坂本信, 森清友亮, 風間清子, 近藤達也, 小林公一, 田邊裕治

    日本実験力学会講演論文集   ( 15 )   2015

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  • 膝関節の屈曲に伴う後十字靱帯の力学的特性

    近藤達也, 坂本信, 小林公一

    日本実験力学会講演論文集   ( 15 )   2015

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  • 四肢専用MRI装置における手関節およびTFCC検査時のポジショニングについての検討

    風間清子, 風間清子, 近藤達也, 小林公一, 坂本信

    日本放射線技術学会総会学術大会予稿集   69th   2013

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  • 2B10 In vivo analysis of the knee joint motion and the posterior cruciate ligament length during knee flexion using MRI

    KONDO Tatsuya, SAKAMOTO Makoto, YOSHIDA Hidenori, KOBAYASHI Koichi

    The Proceedings of the Bioengineering Conference Annual Meeting of BED/JSME   25th   291 - 292   2013

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    DOI： 10.1299/jsmebio.2013.25.291

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    J-GLOBAL

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  • マイクロCTを用いたヒト象牙質のミネラル密度の評価

    春日勇人, 坂井幸子, 近藤達也, 坂本信, 小林公一, 遠藤英昭

    日本実験力学会講演論文集   ( 13 )   2013

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  • 膝屈曲に伴うヒト膝蓋骨運動と膝蓋腱長さの生体内解析—In vivo analysis of the patellar motion and patellar tendon elongation during knee flexion using MRI—第11回バイオメカニクス・ワークショップ・新潟

    坂本 信, 近藤 達也, 小林 公一

    日本実験力学会講演論文集 : 年次講演会 = Proceedings of JSEM : annual Conference on Experimental Mechanics   ( 11-2 )   25 - 29   2012

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    Language：Japanese   Publisher：日本実験力学会  

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  • ヒト後十字靭帯のMRIを用いた生体内変形測定

    近藤達也, 坂本信, 小林公一, 吉田秀義, 川上健作

    日本非破壊検査協会講演大会講演概要集   2012   2012

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  • 後十字靭帯の生体内長さ変化の解析

    近藤達也, 坂本信, 吉田秀義, 小林公一

    日本非破壊検査協会講演大会講演概要集   2012   2012

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  • 膝関節の生体内接触挙動評価—In Vivo Evaluation of Articular Contact Behavior of Knee Joint—第11回バイオメカニクス・ワークショップ・新潟

    小林 公一, 坂本 信, 近藤 達也

    日本実験力学会講演論文集 : 年次講演会 = Proceedings of JSEM : annual Conference on Experimental Mechanics   ( 11-2 )   30 - 33   2012

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    Language：Japanese   Publisher：日本実験力学会  

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  • デジタル画像相関法を用いた皮質骨組織の微小変形測定

    近藤達也, 坂本信, 小林公一, 田邊裕治, 笹川圭右

    日本非破壊検査協会講演大会講演概要集   2011   2011

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Presentations

  • 直管ファントム内の乱流がphase contrast MRIの流量測定に与える影響の検討

    内宮珠里, 近藤達也, 齋藤宏明, 金沢勉, 八木悠太, 渡邉祐弥

    第13回東北放射線医療技術学術大会  2023.11 

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    Event date： 2023.11

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  • 差分マップ法を応用したVNR測定法の基礎検討

    柿崎真紀, 近藤達也, 内宮珠里, 渡邉祐弥, 齋藤宏明, 八木悠太

    医用画像情報学会令和5年度秋季(第197回)大会  2023.10 

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    Event date： 2023.10

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  • 【 MRI 安全性の考え方 第３版】『“安全性の考え方”のここは押さえておこう』

    近藤達也

    第34回 新潟MR技術研究会  2022.11 

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    Event date： 2022.11

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  • 乱流を対象にしたphase contrast MRIのシミュレーション

    松島元康, 近藤達也, 八木悠太, 齋藤宏明, 金沢勉

    第12回東北放射線医療技術学術大会  2022.11 

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    Event date： 2022.11

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  • 打ち切りアーチファクトの再現シミュレーション

    野間優希, 近藤達也, 八木悠太, 齋藤宏明, 金沢勉

    第12回東北放射線医療技術学術大会  2022.11 

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    Event date： 2022.11

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  • MR画像に生じる打ち切りアーチファクトの基礎検討

    野間優希, 近藤達也, 八木悠太, 齋藤宏明, 金沢勉

    医用画像情報学会令和4年度春季(第195回)大会プログラム  2022.2 

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    Event date： 2022.2

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  • MR画像のイメージレジストレーションを用いた運動解析の基礎検討

    鈴木彩香, 近藤達也

    第11回東北放射線医療技術学術大会  2021.10 

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    Event date： 2021.10

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Awards

  • 第80回日本放射線技術学会総会学術大会 CyPos賞（銅賞）

    2024.4   日本放射線技術学会  

    近藤達也, 柿崎真紀, 渡邉祐弥, 齋藤宏明, 八木 悠太, 金沢勉, 林則夫

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  • The 74th Annual Meeting of the JSRT Gold Award

    2018.4   Analysis of Three Dimensional Kinematics Using Three Dimensional Imaging and Cine Imaging in Magnetic Resonance Imaging

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Research Projects

  • Construction of a three-dimensional motion analysis method for the knee joint using magnetic resonance imaging

    Grant number：19K17193

    2019.4 - 2022.3

    System name：Grants-in-Aid for Scientific Research

    Research category：Grant-in-Aid for Early-Career Scientists

    Awarding organization：Japan Society for the Promotion of Science

    Kondo Tatsuya

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    Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）

    A three-dimensional (3D) motion analysis method of the knee joint was developed using magnetic resonance imaging (MRI) to evaluate ligament deformation due to knee joint motion. A two-dimensional (2D) multi-slice cine image of the knee joint in motion and a 3D image of the knee joint at rest were acquired in this method. The bone position was identified through the registration of each image. Patellar tendon relaxation and tension were evaluated using the 2D multi-slice cine images. In addition, a method to construct a knee joint coordinate system, which is important for motion analysis is developed using the MR images of the entire length of the lower limb. The MR image composing was found useful for constructing a bone coordinate system.

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  • Research on construction of mechanical model for lower extremity joints

    Grant number：19H02023

    2019.4 - 2022.3

    System name：Grants-in-Aid for Scientific Research

    Research category：Grant-in-Aid for Scientific Research (B)

    Awarding organization：Japan Society for the Promotion of Science

    Kobayashi Koichi

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    Grant amount：\17550000 （ Direct Cost: \13500000 、 Indirect Cost：\4050000 ）

    To understand biomechanics in lower extremity joints, static joint alignment under weight-bearing conditions and the relationship between knee joint motion and joint structure were investigated. In osteoarthritic knees with varus and valgus deformations, the passing position of ground reaction force was significantly posteriorly at the knee joint. There was no obvious difference in knee motion under loading before and after anterior cruciate ligament injury. In the total replacement knee joints, the component geometry defined the amount of sliding and relative motion at the joint. In order to accurately measure the posterior tilt, which is a characteristic of the proximal tibial articular surface structure, a semi-automatic method for estimating the joint range was presented.

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Teaching Experience

  • 医用放射線技術の歴史

    2021
    Institution name：新潟大学

  • 診断支援工学

    2021
    Institution name：新潟大学

  • 医療と放射線

    2021
    Institution name：新潟大学

  • 保健学総合

    2021
    Institution name：新潟大学

  • 放射線科学セミナー

    2020
    Institution name：新潟大学

  • 卒業研究

    2020
    Institution name：新潟大学

  • 放射線管理学及び演習

    2020
    Institution name：新潟大学

  • 医療英語ベーシック(放射)

    2020
    Institution name：新潟大学

  • 放射線撮影技術学実習

    2020
    Institution name：新潟大学

  • 磁気共鳴画像技術学演習

    2020
    Institution name：新潟大学

  • 疾病の原因と成り立ち

    2020
    -
    2021
    Institution name：新潟大学

  • 医用画像処理工学演習

    2020
    Institution name：新潟大学

  • 医療英語(放射)

    2019
    Institution name：新潟大学

  • スタディスキルズ (放射)

    2019
    Institution name：新潟大学

  • 放射性廃棄物処理法

    2019
    -
    2021
    Institution name：新潟大学

  • 医用画像工学実験

    2019
    -
    2020
    Institution name：新潟大学

  • 放射化学及び演習

    2018
    Institution name：新潟大学

  • 放射線撮影技術学演習

    2018
    Institution name：新潟大学

  • 放射線管理学実験

    2018
    Institution name：新潟大学

  • 放射化学実験

    2018
    Institution name：新潟大学

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Social Activities

  • 新潟MR技術研究会 世話人

    Role(s)： Planner,　Organizing member

    2018

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Academic Activities

  • 第80回日本放射線技術学会総会学術大会 Image Engineering (Segmentation) ／画像工学（領域抽出）座長

    Role(s)： Panel moderator, session chair, etc.

    日本放射線技術学会  2024.4

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    Type：Academic society, research group, etc. 

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  • 第12回東北放射線医療技術学術大会 セッション 1 MRI 画質 座長

    Role(s)： Panel moderator, session chair, etc.

    2022.11

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  • 第12回東北放射線医療技術学術大会 実行委員

    Role(s)： Planning, management, etc.

    2022

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  • 令和3年度年次(第191回)大会医用画像情報学会MII SessionⅠ座長

    Role(s)： Panel moderator, session chair, etc.

    2021.10

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  • 第76回 新潟県診療放射線技師会総会 学術大会 会員研究発表

    Role(s)： Panel moderator, session chair, etc.

    2021.5

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  • 令和3年度年次(第191回)大会医用画像情報学会MII 実行委員

    Role(s)： Planning, management, etc.

    2021

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  • 第76回日本放射線技術学会総会学術大会 撮影（MRI） アーチファクト 座長

    Role(s)： Panel moderator, session chair, etc.

    2020

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  • 日本核医学技術学会 第25回東北地方会 実行委員

    Role(s)： Planning, management, etc.

    2019

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