トップ›研究者を探す›元素成分推定を可能にするMulti-Energy CT再構成アルゴリズム法の開発

元素成分推定を可能にするMulti-Energy CT再構成アルゴリズム法の開発

KAKEN 科学研究費助成事業データベース で見る
研究課題番号 KAKENHI-PROJECT-15K08691
研究種目 基盤研究(C)
研究分野 生物系
医歯薬学
境界医学
医学物理学・放射線技術学
研究機関 徳島大学
東京大学
代表研究者 芳賀 昭弘
研究分担者 古徳 純一
研究分担者 中川 恵一
研究分担者 今江 禄一
研究期間 開始年月日 2015/4/1
研究期間 終了年度 2017
研究ステータス 完了 (2017/4/1)
配分額（合計） 4,940,000 (直接経費 :3,800,000、間接経費 :1,140,000)
配分額（履歴） 2017年度：1,560,000 (直接経費 :1,200,000、間接経費 :360,000)
2016年度：1,430,000 (直接経費 :1,100,000、間接経費 :330,000)
2015年度：1,950,000 (直接経費 :1,500,000、間接経費 :450,000)
キーワード 医学物理学
物質同定
逐次近似再構成
ビームハードニング
事後分布最大化
光電効果
Hartree-Fock
Dual energy CT
放射線物理学
Hatree-Fock

研究成果

[学会発表] Imaging Database and Radiomics

Akihiro Haga 2018

[学会発表] ログファイルによる 体内線量分布の推定

芳賀昭弘 2018

[学会発表] Material Decomposition with Prior Information Compressive Sensing

Akihiro Haga, Dousatsu Sakata, Jun'ichi Kotoku, Taiki Magome, Toshikazu Imae, Kanabu Nawa and Keiichi Nakagawa 2017

[学会発表] CT-based Radiomics Histology Analysis of Stereotactic Ablative Radiotherapy Patients with Early-Stage Non-Small-Cell Lung Cancer

W. Takahashi, S. Aoki, H. Yamashita, M. Ogita, K. Nakagawa and Akihiro Haga 2017

[学会発表] Optimizing B-Spline Deformable Image Registration Between Planning CT and Cone-Beam CT in Head and Neck Cancer Patients

Masahiro Nakano, Roel Kierkels, Shouhei Hanaoka, Erik Korevaar, Toshikazu Imae, Akihiro Haga and Nanna Sijtsema 2017

[学会発表] Introduction to Medical Physics in Japan

Akihiro Haga 2017

[学会発表] A feasibility study for analyzing abnormal motion using relative cross correlation in tracking moving tumors in radiation therapy

C. Ritu, 出町 和之, 上坂 充 and Akihiro Haga 2017

[雑誌論文] Cone-beam CT reconstruction for non-periodic organ motion using time-ordered chain graph model

Nakano Masahiro、Haga Akihiro、Kotoku Jun’ichi、Magome Taiki、Masutani Yoshitaka、Hanaoka Shouhei、Kida Satoshi、Nakagawa Keiichi 2017

[学会発表] Automatic Chest X-Ray Screening with Convolutional Neural Networks

Jun'ichi Kotoku, Takuya Hirose, Shinobu Kumagai, Akari Matsushima, Kenshiro Shiraishi, Norikazu Arai, Akihiro Haga and Takenori Kobayashi 2017

[図書] Image-Based Computer-Assisted Radiation Therapy: Chapter 9: x-ray based patient positioning

Akihiro Haga 2017

[学会発表] Flattening Filter Free VMATを用いた前立腺癌に対する体幹部定位放射線治療中の線量分布の再構成

今江禄一，渡邉雄一，芳賀昭弘，高橋渉，山下英臣，竹内幸浩，矢野 敬一 2017

[学会発表] 画像誘導放射線治療の先端技術:治療中に撮像されたコーンビームCT の利用

芳賀昭弘 2017

[学会発表] Radiomics predictability of early-stage non-small cell lung cancer histology: interobserver delineation analysis

Akihiro Haga, Wataru Takahashi, Shuri Aoki, Kanabu Nawa, Hideomi Yamashita, Osamu Abe and Keiichi Nakagawa 2017

[学会発表] Dose Reconstruction for Prostate SBRT by Use of Cone-Beam CT and a Log File During FFF-VMAT Delivery

T Imae, A Haga, Y Watanabe, S Takenaka, K Nawa, W Takahashi, H Yamashita, Y Takeuchi, K Yano, K Nakagawa, O Abe 2017

[雑誌論文] Effective atomic number estimation using kV-MV dual-energy source in LINAC

Sakata Dousatsu、Haga Akihiro、Kida Satoshi、Imae Toshikazu、Takenaka Shigeharu、Nakagawa Keiichi 2017

[学会発表] Intra-therapiutic MVCT reconstruction of Helical Tomotherapy using PICCS algorighm

竹中亮介、芳賀昭弘、山下英臣、他２名 2016

[雑誌論文] 肺定位放射線治療における積算線量分布の事後評価法の検討

今江 禄一, 芳賀 昭弘, 早乙女 直也, 木田 智士, 中野 正寛, 竹中 重治, 竹内 幸浩, 白木 尚, 矢野 敬一, 山下 英臣, 中川 恵一, 大友 邦 2016

[学会発表] Phase recognition system for tracking tumor using pre-4D CBCT in FFF mode: A makerlss study

チャタクリ・リツ、出町和之、上坂充、芳賀昭弘 2016

[学会発表] Anomaly Detection of Respiratory Motion by Use of Singular Spectrum Analysis

Jun'ichi Kotoku, Shinobu Kumagai, Susumu Nakabayashi, Akihiro Haga, Takenori Kobayashi 2016

[雑誌論文] Efficacy and feasibility of ambulatory treatment-based monthly nedaplatin plus S-1 in definitive or salvage concurrent chemoradiotherapy for early, advanced, and relapsed esophageal cancer

Hideomi Yamashita, Akihiro Haga, Ryousuke Takenaka, Tomoki Kiritoshi, Kae Okuma, Kuni Ohtomo and Keiichi Nakagawa 2016

[学会発表] Clinical results of total skin irradiation for T-cell lymphoma using helical TomoTherapy : a reports of three cases

大熊加恵、芳賀昭弘、江原幸康、他４名 2016

[学会発表] Evaluation of a commercial automatic treatment planning system for prostate cancers and its prospect

名和要武、芳賀昭弘、野元昭弘、他３名 2016

[雑誌論文] VMATとその有用性:臨床応用の観点から

芳賀昭弘 2016

[学会発表] Theoretical consideration of material decomposition with prior information compressed sensing

芳賀昭弘、坂田洞察、馬込大貴、古徳純一、中野正寛、名和要武、堀川弥太郎、中川恵一 2016

[雑誌論文] Evaluation of functional marrow irradiation based on skeletal marrow composition obtained using dual-energy CT

Taiki Magome, Jerry Froelich, Yutaka Takahashi, Luke Arentsen, Shernan Holtan, Keenan Brown, Akihiro Haga, Keiichi Nakagawa, Jennifer Holter, Sebastian Giebel, Jeffrey Wong, Kathryn Dusenbery, Guy Storme, Susanta Hui 2016

[学会発表] Four-Dimensional Cone-Beam CT Iterative Reconstruction with Time-Ordered Chain Graph Model for Non-Periodic Organ Motion and Deformation

Masahiro Nakano, Akihiro Haga, Jun'ichi Kotoku, Taiki Magome, Yoshitaka Masutani, Shouhei Hanaoka, Keiichi Nakagawa 2016

[学会発表] Fast Megavoltage CT Imaging with Rapid Scan Time and Low Imaging Dose in Helical Tomotherapy

Taiki Magome, Akihiro Haga, Yutaka Takahashi, Keiichi Nakagawa, Kathryn Dusenbery, Susanta Hui 2016

[学会発表] Reconstruction of megavoltage computed tomography with rapid scan time and extended field of view

馬込大貴、芳賀昭弘、高橋豊、他５名 2016

[学会発表] The initial experience of FFF VMAT-SBRT in Tokyo University

青木秀梨、山下英臣、芳賀昭弘、中川恵一 2016

[学会発表] Field-Of-View Expansion in Cone-Beam CT Reconstruction by Use of Prior Information

A Haga, T Magome, M Nakano, J Kotoku, K Nakagawa 2016

[雑誌論文] Adequate target volume in total body irradiation by intensity-modulated radiation therapy using helical tomotherapy: a simulation study

Ryosuke Takenaka, Akihiro Haga, Hideomi Yamashita, Keiichi Nakagawa 2016

[学会発表] 放射線治療の頭脳治療-計画装置- 本質的理解とモデリング

芳賀昭弘 2016

[学会発表] Planning constraint cone-beam CT reconstruction; - feasibility study -

芳賀昭弘、馬込大貴、中野正寛、他４名 2016

[雑誌論文] A rapid imaging method for total body or marrow irradiation in helical tomotherapy

Taiki Magome, Akihiro Haga, Yutaka Takahashi, Keiichi Nakagawa, Kathryn Dusenbery, Susanta Hui 2016

[学会発表] Markerless tumor tracking for moving tumors using pre4DCBCT for image guided radiation therapy

Ritu Bhusal Chhatkuli, Kazuyuki Demachi, Mitsuru Uesaka and Akihiro Haga 2015

[雑誌論文] Patterns of Recurrence in Malignant Glioma Patients: Association with Subventricular Zone and Radiotherapy Dose

Hiroshi Igaki, Taiki Magome, Madoka Sakuramachi, Akihiro Nomoto, Akira Sakumi, Mayuka Kitaguchi, Akihiro Haga, Jun Itami, Keiichi Nakagawa 2015

[学会発表] Visualization of the treatment area in helical tomotherapy system

芳賀昭弘, 中川恵一 C. Maurer, et. al. 2015

[学会発表] Time-Ordered Four Dimensional Cone-Beam CT Reconstruction for Pelvic Region

M Nakano, S Kida , Y Masutani , T Imae, K Yamamoto , K Shiraishi , K Nakagawa , A Haga 2015

[雑誌論文] 逐次最適化散乱補正アルゴリズムを用いたkilo-voltage cone beam CTの画質改善

木田智士, 増谷佳孝, 中野正寛, 今江禄一, 中川恵一, 芳賀昭弘 2015

[学会発表] Prediction of Respiratory motion using State Space Models

J Kotoku, S Kumagai, A Haga, S Nakabayashi, N Arai, T Kobayashi 2015

[学会発表] 4DCBCT based phase recognition for tracking moving tumors in image guided radiation therapy

Ritu Bhusal Chhatkuli, Kazuyuki Demachi, Mitsuru Uesaka and Akihiro Haga 2015

[学会発表] Survival time prediction after radiotherapy for high-grade glioma patients based on machine learning technique

Magome Taiki, Akihiro Haga, Hiroshi Igaki, Noriyasu Sekiya 2015

[学会発表] Measurement and Calculation of Doses Outside the Treatment Volume from Gamma Knife Radiosurgery

Daisuke Kon, Masahiro Nakano, Kanabu Nawa, Akihiro Haga and Keiichi Nakagawa 2015

[学会発表] 非剛体レジストレーションを用いた肺定位放射線治療中の線量分布

今江禄一, 芳賀昭弘, 竹中重治, et. al. 2015

[学会発表] Estimation of Effective Chage and Electron Density Distribution by Dual Energy CT Reconstruction

Dousatsu Sakata, Akihiro Haga, Satoshi Kida, Toshikazu Image and Keiichi Nakagawa 2015

[学会発表] Investigation of factors contributing to extracranial doses for Leksell Gamma Knife

Daisuke Kon, Akihiro Haga and Keiichi Nakagawa 2015

[学会発表] Estimation of Effective Atomic Number and Electron Density by Dual-Energy CT Reconstruction

Dousatsu Sakata, Akihiro Haga, Satoshi Kida, Toshikazu Imae,Shigeharu Takenakam, Yoshitaka Masutani, Keiichi Nakagawa 2015

[学会発表] Investigation of Factors Contributing to Extracranial Radiation Doses From Leksell Gamma Knife

Daisuke Kon, Masahiro Nakano, Kanabu Nawa, Akihiro Haga and Keiichi Nakagawa 2015

[雑誌論文] Dynamic Image Prediction Using Principal Component and Multi-Channel Singular Spectral Analysis: A Feasibility Study

Ritu Bhusal Chhatkuli, Kazuyuki Demachi, Naoki Miyamoto, Mitsuru Uesaka, Akihiro Haga 2015

[図書] Stereotactic Body Radiation Therapy Chapter 18: Others: Four-dimensional Cone-Beam CT during SBRT

Haga A. Kida S. Saotome N. Yamashita H. Masutani Y. and Nakagawa K 2015

[学会発表] A real time prediction and phase recognition of moving tumors based on pre-4DCBCT in radiation therapy

C. Ritu, 出町一之, 上坂充, 芳賀昭弘 2015

[学会発表] Dual energy CT reconstruction using LINAC

Akihiro Haga 2015

[学会発表] What is an adequate target volume in IMRT for total body irradiation?

竹中亮介, 芳賀昭弘, 山下英臣, 中川恵一 2015

[学会発表] Photoelectric Cross Section Revisited

A Haga, J Kotoku , Y Horikawa , K Nakagawa 2015

事前画像を用いた放射線治療中の異常検知システム

画像処理装置および画像処理方法