Development of Hybrid and Dual Energy CT System in Radiation Therapy Device

• Project/Area Number: 24689048
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Radiation science
• Research Institution: The University of Tokyo
• Principal Investigator: HAGA Akihiro 東京大学, 医学部附属病院, 助教 (30448021)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000); Fiscal Year 2014: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000); Fiscal Year 2013: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000); Fiscal Year 2012: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
• Keywords: Dual energy CT / Cone beam CT / kilo voltage X-ray / Mega voltage X-ray / in-treatment CT / Four dimensional CT / Dual Energy CT / Mega-voltage CT / Kilo-voltage CT / 電子密度 / 有効原子番号 / コーンビームCT / デュアルエナジーCT / 光電効果 / コンプトン散乱 / キロボルトX線 / メガボルトX線 / ハイブリッドCT / キロボルトエックス線 / メガボルトエックス線 / 逐次近似再構成 / 画像誘導放射線治療 / 4次元

Outline of Final Research Achievements

I have developed a novel reconstruction algorithm for computed tomography using kV and MV X-rays, which are commonly used in the diagnostic and treatment beams, respectively. This study has improved the image quality by considering scattering X-ray, periodic and non-periodic anatomy motions, and restricted field imaging for treatment, as well as the dual energy CT reconstruction, and thus, contributes to the development of both systems of target verification and dose calculation.

Research Products

• [Journal Article] Analysis of motion of the rectum and bladder during preoperative intensity modulated radiation therapy for rectal cancer using cone-beam computed tomography (2015)
  • Author(s): Hideomi Yamashita, Ryousuke Takenaka, Akira Sakumi, Akihiro Haga, Kuni Otomo and Keiichi Nakagawa
  • Journal Title: Radiation Oncology Volume: 10 Issue: 1 Pages: 1-7
  • DOI: 10.1186/s13014-014-0311-6
  • Peer Reviewed / Open Access
• [Journal Article] Reconstruction of the treatment area by use of sinogram in helical tomotherapy (2014)
  • Author(s): Akihiro Haga, Keiichi Nakagawa, Calvin Maurer, Ken Ruchala, Edward Chao, Dylan Casey, Satoshi Kida, Dousatsu Sakata, Masahiro Nakano, Taiki Magome, Yoshitaka Masutani
  • Journal Title: Radiation Oncology Volume: 9 Issue: 1 Pages: 252-252
  • DOI: 10.1186/s13014-014-0252-0
  • Peer Reviewed / Open Access
• [Journal Article] Independent absorbed-dose calculation using the Monte Carlo algorithm in volumetric modulated arc therapy. (2014)
  • Author(s): Haga A, Magome T, Takenaka S, Imae T, Sakumi A, Nomoto A, Igaki H, Shiraishi K, Yamashita H, Ohtomo K, Nakagawa K.
  • Journal Title: Radiattion Oncology Volume: 9 Issue: 1 Pages: 1-9
  • DOI: 10.1186/1748-717x-9-75
  • Peer Reviewed / Open Access
• [Journal Article] Validation of Planning Target Volume Margins by Analyzing Intrafractional Localization Errors for 14 Prostate Cancer Patients Based on Three-Dimensional Cross-Correlation between the Prostate Images of Planning CT and Intrafraction Cone-Beam CT during Volumetric Modulated Arc Therapy (2014)
  • Author(s): Kenshiro Shiraishi, Masahiko Futaguchi, Akihiro Haga, Akira Sakumi, Katsutake Sasaki, Kentaro Yamamoto, Hiroshi Igaki, Kuni Ohtomo, Kiyoshi Yoda, and Keiichi Nakagawa
  • Journal Title: BioMed Research International Volume: ID960928 Pages: 1-5
  • DOI: 10.1155/2014/960928
  • Peer Reviewed / Open Access
• [Journal Article] Stereotactic Body Radiotherapy for Small Lung Tumors in the University of Tokyo Hospital (2014)
  • Author(s): Hideomi Yamashita, Wataru Takahashi, Akihiro Haga, Satoshi Kida, Naoya Saotome, and Keiichi Nakagawa
  • Journal Title: BioMed Research International Volume: ID136513 Pages: 1-11
  • DOI: 10.1155/2014/136513
  • Peer Reviewed / Open Access
• [Journal Article] Volumetric modulated arc therapy for lung stereotactic radiation therapy can achieve high local control rates. (2014)
  • Author(s): Yamashita H, Haga A, Takahashi W, Takenaka R, Imae T, Takenaka S, Nakagawa K.
  • Journal Title: Radiation Oncology Volume: 9 Issue: 1 Pages: 243-243
  • DOI: 10.1186/s13014-014-0243-1
  • Peer Reviewed / Open Access
• [Journal Article] Winston-Lutz Test and Acquisition of Flexmap Using Rotational Irradiation (2014)
  • Author(s): 今江 禄一, 芳賀 昭弘, 早乙女 直也, 竹中 重治, 岡野 由香里, 佐々木 克剛, 根津 誠, 三枝 茂輝, 白木 尚, 矢野 敬一, 中川 恵一, 大友 邦
  • Journal Title: Japanese Journal of Radiological Technology Volume: 70 Issue: 4 Pages: 359-368
  • DOI: 10.6009/jjrt.2014_JSRT_70.4.359
  • NAID: 130003393506
  • ISSN: 0369-4305, 1881-4883
  • Peer Reviewed / Open Access
• [Journal Article] Impact of flattening-filter-free techniques on delivery time for lung stereotactic volumetric modulated arc therapy and image quality of concurrent kilovoltage cone-beam computed tomography : a preliminary phantom study (2014)
  • Author(s): Nakagawa K, Haga A, Sakumi A, Yamashita H, Igaki H, Shiraki T, Ohtomo K, Iwai Y, Yoda K
  • Journal Title: J Radiat Res Volume: 55(1) Issue: 1 Pages: 200-2
  • DOI: 10.1093/jrr/rrt105
  • Peer Reviewed
• [Journal Article] Verification of planning target volume settings in volumetric modulated arc therapy for stereotactic body radiation therapy by using in-treatment 4-dimensional cone beam computed tomography (2013)
  • Author(s): Takahashi W, Yamashita H, Kida S, Masutani Y, Sakumi A, Ohtomo K, Nakagawa K, Haga A
  • Journal Title: Int J Radiat Oncol Biol Phys Volume: 86(3) Issue: 3 Pages: 426-31
  • DOI: 10.1016/j.ijrobp.2013.02.019
  • Peer Reviewed
• [Journal Article] Dose verification of volumetric modulated arc therapy (VMAT) by use of in-treatment linac parameters (2013)
  • Author(s): Haga A, Sakumi A, Okano Y, Itoh S, Saotome N, Kida S, Igaki H, Shiraishi K, Yamashita H, Ohtomo K, Nakagawa K
  • Journal Title: Radiol Phys Technol Volume: 6(2) Issue: 2 Pages: 335-42
  • DOI: 10.1007/s12194-013-0205-6
  • Peer Reviewed
• [Journal Article] Comparison of total MU and segment areas in VMAT and step-and-shoot IMRT plans. (2013)
  • Author(s): Kawashima M
  • Journal Title: Radiol Phys Technol. Volume: 6(1) Issue: 1 Pages: 14-20
  • DOI: 10.1007/s12194-012-0164-3
  • Peer Reviewed
• [Journal Article] 放射線治療の進歩 (2013)
  • Author(s): 中川恵一, 芳賀昭弘
  • Journal Title: PET Journal
• [Journal Article] 放射線治療におけるチーム医療 (2013)
  • Author(s): 井垣浩, 白木尚, 山上睦実, 芳賀昭弘, 中川恵一
  • Journal Title: 癌と化学療法 Volume: (In press)
• [Journal Article] 放射線治療におけるチーム医療 医学物理士の立場から (2013)
  • Author(s): 芳賀昭弘
  • Journal Title: JASTRO News Letter Volume: 107 Pages: 16-17
• [Journal Article] 肺定位放射線治療中における標的の移動量の評価 (2012)
  • Author(s): 今江禄一、芳賀昭弘, 他6名
  • Journal Title: Medical Imaging Technology Volume: 30 Pages: 262-267
  • NAID: 130002573587
  • Peer Reviewed
• [Journal Article] Evaluation of heterogeneity dose distributions for Stereotactic Radiotherapy (SRT) : Comparison of commercially available Monte Carlo dose calculation with other algorithms (2012)
  • Author(s): W Takahashi, 他6名
  • Journal Title: Radiation Oncology Volume: 7:20 Issue: 1 Pages: 1-8
  • DOI: 10.1186/1748-717x-7-20
  • Peer Reviewed
• [Journal Article] 4D digitally reconstructed radiography for verifying a lung tumor position during volumetric modulated arc therapy. (2012)
  • Author(s): Nakagawa K
  • Journal Title: J Radiat Res. Volume: 53(4) Issue: 4 Pages: 628-32
  • DOI: 10.1093/jrr/rrs013
  • Peer Reviewed
• [Presentation] Four-dimensional dose reconstruction by use of in-treatment data set (2014)
  • Author(s): Akihiro Haga
  • Organizer: OSAKA, INDIANA, GRONINGEN symposium on Medical Physics,
  • Place of Presentation: Groningen
  • Year and Date: 2014-08-25 – 2014-08-26
  • Invited
• [Presentation] Reconstruction of the Treatment Area by Use of Sinogram in Helical Tomotherapy and conventional LINAC (2014)
  • Author(s): Akihiro Haga
  • Organizer: University of Minnesota, The University of Tokyo, Osaka University, Scientific Symposium,
  • Place of Presentation: University of Minnesota
  • Year and Date: 2014-07-26 – 2014-07-28
  • Invited
• [Presentation] Estimation of Effective Charge Distribution by Dual-Energy CT Reconstruction (2014)
  • Author(s): D Sakata, S Kida, M Nakano, Y Masutani, K Nakagawa, A Haga
  • Organizer: Annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Austin, TX
  • Year and Date: 2014-07-20 – 2014-07-24
• [Presentation] Reconstruction of the Treatment Area by Use of Sinogram in Helical Tomotherapy (2014)
  • Author(s): A Haga, K Nakagawa, C Maurer, K Ruchala, E Chao, D Casey, S Kida, D Sakata, T Magome, M Nakano, Y Masutani
  • Organizer: Annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Austin, TX
  • Year and Date: 2014-07-20 – 2014-07-24
• [Presentation] Delivered 4D Dose Calculation for Lung-VMAT Patients Using In-Treatment CBCT and LINAC Log Data (2014)
  • Author(s): N Saotome, A Haga, T Imae, S Kida, M Nakano, H Yamashita, K Nakagawa, K Ohtomo
  • Organizer: Annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Austin, TX
  • Year and Date: 2014-07-20 – 2014-07-24
• [Presentation] Dose Distribution Using Respiratory Signals and Machine Parameters During Treatment (2014)
  • Author(s): T Imae, A Haga , N Saotome , S Kida , M Nakano , Y Takeuchi , T Shiraki , K Yano , H Yamashita , K Nakagawa , K Ohtomo
  • Organizer: Annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Austin, TX
  • Year and Date: 2014-07-20 – 2014-07-24
• [Presentation] Measurement of Eective Charge Distribution by Dual-Energy CT Reconstruction (2014)
  • Author(s): Dousatsu Sakata, Akihiro Haga, Yoshitaka Masutani, Satoshi Kida and Masahiro Nakano
  • Organizer: 第107回日本医学物理学会
  • Place of Presentation: 横浜パシフィコ
  • Year and Date: 2014-04-10 – 2014-04-13
• [Presentation] Photoelectric cross sections based on the Hartree-Fock calculation (2014)
  • Author(s): Akihiro Haga, Jun’ichi Kotoku, Yataro Horikawa Dousatsu Sakata, Taiki Magome, Keiichi Nakagawa
  • Organizer: 第107回日本医学物理学会
  • Place of Presentation: 横浜パシフィコ
  • Year and Date: 2014-04-10 – 2014-04-13
• [Presentation] VMATを用いた体幹部定位放射線治療中の線量評価 (2014)
  • Author(s): T Imae, A Haga, N Saotome, Y Okano, Y Kaneko, M Nedu, S Saegusa, T Shiraki, Y Takeuchi, K Yano, H Yamashita, K Nakagawa, K Ohtomo
  • Organizer: 第70回日本放射線技術学会
  • Place of Presentation: 横浜パシフィコ
  • Year and Date: 2014-04-10 – 2014-04-13
• [Presentation] Accuracy Verification of 4D Cone Beam CT (CBCT)-Based Lung Tumor Registration by Way of In-Treatment 4D CBCT Analysis (2013)
  • Author(s): K. Nakagawa, A. Haga, W. Takahashi, H. Yamashita, et. al.
  • Organizer: 56th annual meeting of American Society for Radiation Oncology
  • Place of Presentation: Atlanta at the Georgia World Congress Centre (USA)
• [Presentation] Volumetric Modulated Arc Therapy (VMAT) in the Treatment of Localized Prostate Cancer: Initial Experience in 200 Patients (2013)
  • Author(s): K. Shiraishi, K. Yamamoto, A. Haga, A. Sakumi, et. al.
  • Organizer: 56th annual meeting of American Society for Radiation Oncology
  • Place of Presentation: Atlanta at the Georgia World Congress Centre (USA)
• [Presentation] What Respiratory-Phase CT Is Optimal in Treatment Planning of Lung Cancer? (2013)
  • Author(s): A. Haga, S. Saegusa, J. Kotoku, H. Yamashita, et. al.
  • Organizer: 56th annual meeting of American Society for Radiation Oncology
  • Place of Presentation: Atlanta at the Georgia World Congress Centre (USA)
• [Presentation] Improvement of Four Dimensional Cone Beam CT Image Quality with Iterative Reconstruction (2013)
  • Author(s): S Kida, M Nakano, Y Masutani, K Nakagawa and A Haga
  • Organizer: 55th annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Indiana Convention Center, Indianapolis (USA)
• [Presentation] Energy Spectrum Inference of Clinical Photon Beam by Use of PDD (2013)
  • Author(s): J Kotoku, A Haga, S Kumagai, N Saotome and T Kobayashi
  • Organizer: 55th annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Indiana Convention Center, Indianapolis (USA)
• [Presentation] Time‐Ordered Four Dimensional Cone‐Beam CT (2013)
  • Author(s): M Nakano, S Kida, Y Masutani, T Shiraki, K Shiraishi, K Yamamoto, K Nakagawa and A Haga
  • Organizer: 55th annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Indiana Convention Center, Indianapolis (USA)
• [Presentation] Registration Accuracy with Four‐Dimensional Cone‐Beam CT for Lung Cancer Treatment (2013)
  • Author(s): A Haga, J Kotoku, S Kida, Y Masutani, H Yamashita, W Takahashi, T Imae and K Nakagawa
  • Organizer: 55th annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Indiana Convention Center, Indianapolis (USA)
• [Presentation] The Performance Test of EPID for In‐Vivo Dosimetry (2013)
  • Author(s): N Saotome, S Kida, T Imae, K Sasaki, A Sakumi, Y Masutani, A Haga and K Nakagawa
  • Organizer: 55th annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Indiana Convention Center, Indianapolis (USA)
• [Presentation] Calculation of Dose Distributions From 106 Ruthenium COC‐Type Eye Applicator (2013)
  • Author(s): M Futaguchi, A Haga, A Sakumi, H Okamoto, M Hamada, M Fuse, Y Abe, N Murakami, J Itami and K Nakagawa
  • Organizer: 55th annual meeting of American Association of Physicists in Medicine
  • Place of Presentation: Indiana Convention Center, Indianapolis (USA)
• [Presentation] A study for the implementation of dynamic tracking radiotherapy system based on time series image prediction method (2013)
  • Author(s): Ritu Bhusal Chhatkuli, Kazuyuki Demachi, Akihiro Haga, Hiroshi Sakakibara, Kazuma Kamiaka, Yusuke Nakamura and Mitsuru Uesaka
  • Organizer: International Conference on Medical Physics
  • Place of Presentation: Brighton Centre, Brighton (UK)
• [Presentation] Evaluation of an intrafraction 4D cone-beam CT (CBCT) imaging system using a 4D lung tumor phantom driven by measured tumor motions for a lung cancer patient (2013)
  • Author(s): A. Sakumi, K. Mizuno, Y. Nishijima, M. Uesaka, A. Haga, Y. Iwai, K. Yoda, K. Nakagawa
  • Organizer: International Conference on Medical Physics
  • Place of Presentation: Brighton Centre, Brighton (UK)
• [Presentation] Independent dose calculation with X-ray voxel Monte Carlo algorithm in volumetric modulated arc therapy (2013)
  • Author(s): A. Haga, S. Takenaka, T. Image, A. Sakumi, K. Ohtomo, K. Nakagawa
  • Organizer: 2nd ESTRO Forum
  • Place of Presentation: Geneva (Switzerland)
• [Presentation] Accuracy comparison of 3D and 4D CBCT based lung tumor registrations by way in-treatment 4D CBCT analysis (2013)
  • Author(s): K. Nakagawa, A. Haga, W. Takahashi, H. Yamashita, T. Imae, S. Kida, Y. Masutani, A. Sakumi, K. Ohtomo
  • Organizer: 2nd ESTRO Forum
  • Place of Presentation: Geneva (Switzerland)
• [Presentation] Verification System for Image-Guided Radiation Therapy by Using In-Treatment 4D CBCT (2013)
  • Author(s): W. Takahashi, A. Haga, N. Yamamoto, H. Yamashita, T. Imae, S. Kida, A. Sakumi, K. Ohtomo, T. Kamada, K. Nakagawa
  • Organizer: 2nd ESTRO Forum
  • Place of Presentation: Geneva (Switzerland)
• [Presentation] Three-dimensional dose distribution of Ruthenium 106 brachytherapy for retinoblastoma (2013)
  • Author(s): Masahiko Futaguchi, Akira Sakumi, Akihiro Haga, Naoya Murakami, Hiroyuki Okamoto, Jun Itami, Keiichi Nakagawa
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] The characteristics of EPID for in-vivo dosimetry (2013)
  • Author(s): Naoya Saotome, Satoshi Kida, Toshikazu Imae, Katsutake, Akira Sakumi, Yoshitaka Masutani, Akihiro Haga, Keiichi Nakagawa
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] Improvement of 4D Cone-beam CT image quality with iterative reconstruction (2013)
  • Author(s): Satoshi Kida, Yoshitaka Masutani, Masahiro Nakano, Toshikazu Imae, Akihiro Haga
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] Time-ordered four dimensional Cone-Beam CT (2013)
  • Author(s): M Nakano, S Kida, Y Masutani, T Shiraki, K Shiraishi, K Yamamoto, K Nakagawa and A Haga
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] 動体追尾リニアックに搭載されたコーンビームCTの4次元再構成の検討 (2013)
  • Author(s): 杉本聡、芳賀昭弘、山岸隆宏、馬場竜太、高頭浩正、江部和勇
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] Registration accuracy for lung tumor verified by using in-treatment 4D cone-beam CT (2013)
  • Author(s): Akihiro Haga, Keiichi Nakagawa, Satoshi Kida, Yoshitaka Masutani, Hideomi Yamashita, Wataru Takahashi, Toshikazu Imae, Takashi Shiraki, Naoya Saotome, Akira Sakumi
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] Dose calculation using in-treatment 4D kilovoltage CBCT and in-treatment linac parameters during VMAT for a lung cancer tumor (2013)
  • Author(s): Akira Sakumi, Naoya Saotome, Akihiro Haga, Satoshi Kida, Hideomi Yamashita, Keiichi Nakagawa
  • Organizer: 第１０５回日本医学物理学会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] 前立腺の回転型強度変調放射線治療(VMAT)における直腸ガスが線量分布に及ぼす影響の評価 (2013)
  • Author(s): 三枝茂輝 竹中重治 白木尚 矢野敬一 芳賀昭弘 野元昭弘 中川恵一
  • Organizer: 第69回日本放射線技術学会総会学術大会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] 回転照射法を用いたWinston-Lutzテストおよび幾何学的補正テーブルの取得 (2013)
  • Author(s): 今江禄一 早乙女直也 芳賀昭弘 竹中重治 岡野由香里 佐々木克剛 兼子芳浩 根津誠 三枝茂輝 白木尚 矢野敬一 中川恵一
  • Organizer: 第69回日本放射線技術学会総会学術大会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] 治療計画用4D-CT画像を用いた肺腫瘍の体幹部定位放射線治療(SBRT)の線量評価 (2013)
  • Author(s): 三枝茂輝 今江禄一 佐々木克剛 白木尚 矢野敬一 芳賀昭弘 中川恵一 古徳純一
  • Organizer: 第69回日本放射線技術学会総会学術大会
  • Place of Presentation: パシフィコ横浜（横浜市）
• [Presentation] 肺がんVMAT-SRTにおける呼吸抑制再現性の検証 (2013)
  • Author(s): 中川恵一、芳賀昭弘、木田智士、増谷佳孝、山下英臣、高橋渉、作美明、早乙女直也、白木尚、大友邦
  • Organizer: 日本放射線腫瘍学会第２６回学術大会
  • Place of Presentation: ホテル青森（青森市）
• [Presentation] 肺SRTにおけるVMATと固定多門法と原体照射のDVH比較 (2013)
  • Author(s): 芝田紫野、山下英臣、芳賀昭弘、作美明、中川恵一
  • Organizer: 日本放射線腫瘍学会第２６回学術大会
  • Place of Presentation: ホテル青森（青森市）
• [Presentation] Structureの平均CT値から算出した電子密度をStructureに代入した上での線量計算の検討 (2013)
  • Author(s): 野元昭弘、早乙女直也、芳賀昭弘、作美明、山下英臣、中川恵一
  • Organizer: 日本放射線腫瘍学会第２６回学術大会
  • Place of Presentation: ホテル青森（青森市）
• [Presentation] 直腸癌術前放射線治療期間中の直腸interfraction motionの解析 (2013)
  • Author(s): 竹中亮介、山下英臣、大森万美、野元昭弘、芳賀昭弘、中川恵一
  • Organizer: 日本放射線腫瘍学会第２６回学術大会
  • Place of Presentation: ホテル青森（青森市）
• [Presentation] 治療中の呼吸信号および照射制御パラメータを用いた線量分布の構築 (2013)
  • Author(s): 今江禄一 早乙女直也 芳賀昭弘 竹中重治 岡野由香里 佐々木克剛 兼子芳浩 根津誠 三枝茂輝 白木尚 矢野敬一 中川恵一 大友 邦
  • Organizer: 日本放射線腫瘍学会第２６回学術大会
  • Place of Presentation: ホテル青森（青森市）
• [Presentation] 医学物理と放射線治療情報システム (2013)
  • Author(s): 芳賀昭弘
  • Organizer: 第１０６回日本医学物理学会
  • Place of Presentation: 大阪大学コンベンションセンター（吹田市）
• [Presentation] 肺がんにおける4D-CBCTとVMAT-SRT (2012)
  • Author(s): 中川恵一、芳賀昭弘, 他6名
  • Organizer: 日本放射線腫瘍学会
  • Place of Presentation: 東京
  • Year and Date: 2012-11-25
• [Presentation] 放射線治療におけるチーム医療 医学物理士の立場から (2012)
  • Author(s): 芳賀昭弘
  • Organizer: 日本放射線腫瘍学会
  • Place of Presentation: 東京(招待講演)
  • Year and Date: 2012-11-24
• [Presentation] 治療ビームを用いた画像再構成 (2012)
  • Author(s): 芳賀昭弘, 他8名
  • Organizer: 日本医学物理学会
  • Place of Presentation: 筑波
  • Year and Date: 2012-09-15
• [Presentation] SPECT-CTを用いた放射性ヨードの線量分布 (2012)
  • Author(s): 伊藤さおり、芳賀昭弘, 他5名
  • Organizer: 日本医学物理学会
  • Place of Presentation: 筑波
  • Year and Date: 2012-09-15
• [Presentation] 放射線治療におけるCone-Beam CTの画質改善 (2012)
  • Author(s): 木田智士、芳賀昭弘, 他5名
  • Organizer: 日本医学物理学会
  • Place of Presentation: 筑波
  • Year and Date: 2012-09-15
• [Presentation] RapidArcにおける治療ビームを用いたCBCT再構成 (2012)
  • Author(s): 橋本成世、芳賀昭弘, 他8名
  • Organizer: 日本医学物理学会
  • Place of Presentation: 筑波
  • Year and Date: 2012-09-15
• [Presentation] Impact of embedded seeds on dose distribution in external x-ray radioth erapy (2012)
  • Author(s): 作美明、白石憲史郎、芳賀昭弘, 他2名
  • Organizer: 日本医学物理学会
  • Place of Presentation: 筑波
  • Year and Date: 2012-09-15
• [Presentation] Determination of PTV margin for lung tumor using in-treatment 4D CBCT (2012)
  • Author(s): 芳賀昭弘, 他8名
  • Organizer: アメリカ医学物理学会
  • Place of Presentation: アメリカ シャーロット
  • Year and Date: 2012-07-30
• [Presentation] Dose Distribution Generated From 1311 Radionuclide Using SPECT-CT (2012)
  • Author(s): Saori Itoh, Akihiro Haga, 他5名
  • Organizer: アメリカ医学物理学会
  • Place of Presentation: アメリカ シャーロット
  • Year and Date: 2012-07-30
• [Presentation] Energy spectrum Inference of a Linac (2012)
  • Author(s): Jun'ichi Kotoku, 他5名
  • Organizer: アメリカ医学物理学会
  • Place of Presentation: アメリカ シャーロット
  • Year and Date: 2012-07-30
• [Presentation] Geometry agreement check R)r imaging system with radiation beam by kV and MV-CBCT (2012)
  • Author(s): Naoya Saotome, 他5名
  • Organizer: アメリカ医学物理学会
  • Place of Presentation: アメリカ シャーロット
  • Year and Date: 2012-07-30
• [Book] Stereotactic Body Radiation Therapy: Principles and Practices: Chapter 19 (2015)
  • Author(s): Haga A*. Kida S. Saotome N. Takahashi W. Yamashita H. Masutani Y. and Nakagawa K.
  • Total Pages: 7
  • Publisher: Springer
• [Book] 初学者のための原子力・量子・核融合の事典 第4章4.9：３次元原体照射 (2014)
  • Author(s): 芳賀昭弘
  • Total Pages: 4
  • Publisher: 丸善出版
• [Book] Stereotactic Body Radiation Therapy: Chapter 19 (2014)
  • Author(s): Haga A. Kida S. Saotome N. Yamashita H. Masutani Y. and Nakagawa K
  • Total Pages: 10
  • Publisher: Springer
• [Remarks] 東京大学医学部附属病院放射線治療部門研究業績
  • URL: http://u-tokyo-rad.jp/works/index.html
• [Remarks] 東京大学医学部附属病院放射線治療部門研究業績
  • URL: http://www.u-tokyo-rad.jp/works/2014/
• [Remarks]
  • URL: http://www.u-tokyo-rad.jp/works/index.html