Search Results - "Matsuura, Taeko"

An initial systematic study of the linear energy transfer distributions of a proton beam under a transverse magnetic field by Fujii, Yusuke, Ueda, Hideaki, Umegaki, Kikuo, Matsuura, Taeko

“…Purpose To evaluate the biological effectiveness of magnetic resonance (MR)‐guided proton beam therapy, comprehensively characterizing the dose and…”
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First experimental results of gated proton imaging using x-ray fluoroscopy to detect a fiducial marker by Tanaka, Sodai, Miyamoto, Naoki, Matsuo, Yuto, Yoshimura, Takaaki, Takao, Seishin, Matsuura, Taeko

“…Increasing numbers of proton imaging research studies are being conducted for accurate proton range determination in proton therapy treatment planning…”
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Proton dose calculation based on converting dual-energy CT data to stopping power ratio (DEEDZ-SPR): a beam-hardening assessment by Tanaka, Sodai, Noto, Yoshiyuki, Utsunomiya, Satoru, Yoshimura, Takaaki, Matsuura, Taeko, Saito, Masatoshi

“…To achieve an accurate stopping power ratio (SPR) prediction in particle therapy treatment planning, we previously proposed a simple conversion to the SPR from…”
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Enhanced radiobiological effects at the distal end of a clinical proton beam: in vitro study by Matsumoto, Yoshitaka, Matsuura, Taeko, Wada, Mami, Egashira, Yusuke, Nishio, Teiji, Furusawa, Yoshiya

“…In the clinic, the relative biological effectiveness (RBE) value of 1.1 has usually been used in relation to the whole depth of the spread-out Bragg-peak…”
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A proton beam therapy system dedicated to spot-scanning increases accuracy with moving tumors by real-time imaging and gating and reduces equipment size by Shimizu, Shinichi, Miyamoto, Naoki, Matsuura, Taeko, Fujii, Yusuke, Umezawa, Masumi, Umegaki, Kikuo, Hiramoto, Kazuo, Shirato, Hiroki

“…A proton beam therapy (PBT) system has been designed which dedicates to spot-scanning and has a gating function employing the fluoroscopy-based…”
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Ionoacoustic application of an optical hydrophone to detect proton beam range in water by Sueyasu, Shota, Takayanagi, Taisuke, Miyazaki, Koichi, Kuriyama, Yasutoshi, Ishi, Yoshihiro, Uesugi, Tomonori, Unlu, Mehmet Burcin, Kudo, Nobuki, Chen, Ye, Kasamatsu, Koki, Fujii, Masayuki, Kobayashi, Masanori, Rohringer, Wolfgang, Matsuura, Taeko

“…Background Proton range uncertainty has been the main factor limiting the ability of proton therapy to concentrate doses to tumors to their full potential…”
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On-line range verification for proton beam therapy using spherical ionoacoustic waves with resonant frequency by Takayanagi, Taisuke, Uesaka, Tomoki, Nakamura, Yuta, Unlu, Mehmet Burcin, Kuriyama, Yasutoshi, Uesugi, Tomonori, Ishi, Yoshihiro, Kudo, Nobuki, Kobayashi, Masanori, Umegaki, Kikuo, Tomioka, Satoshi, Matsuura, Taeko

“…In contrast to conventional X-ray therapy, proton beam therapy (PBT) can confine radiation doses to tumours because of the presence of the Bragg peak. However,…”
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Deformed dose restoration to account for tumor deformation and position changes for adaptive proton therapy by Miyazaki, Koichi, Fujii, Yusuke, Yamada, Takahiro, Kanehira, Takahiro, Miyamoto, Naoki, Matsuura, Taeko, Yasuda, Koichi, Uchinami, Yusuke, Otsuka, Manami, Aoyama, Hidefumi, Takao, Seishin

“…Background Online adaptation during intensity‐modulated proton therapy (IMPT) can minimize the effect of inter‐fractional anatomical changes, but remains…”
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Impact of Real-Time Image Gating on Spot Scanning Proton Therapy for Lung Tumors: A Simulation Study by Kanehira, Takahiro, MSc, Matsuura, Taeko, PhD, Takao, Seishin, PhD, Matsuzaki, Yuka, PhD, Fujii, Yusuke, MSc, Fujii, Takaaki, PhD, Ito, Yoichi M., PhD, Miyamoto, Naoki, PhD, Inoue, Tetsuya, MD, PhD, Katoh, Norio, MD, PhD, Shimizu, Shinichi, MD, PhD, Umegaki, Kikuo, PhD, Shirato, Hiroki, MD, PhD

“…Purpose To investigate the effectiveness of real-time-image gated proton beam therapy for lung tumors and to establish a suitable size for the gating window…”
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Technical note: Performance evaluation of volumetric imaging based on motion modeling by principal component analysis by Asano, Suzuka, Oseki, Keishi, Takao, Seishin, Miyazaki, Koichi, Yokokawa, Kohei, Matsuura, Taeko, Taguchi, Hiroshi, Katoh, Norio, Aoyama, Hidefumi, Umegaki, Kikuo, Miyamoto, Naoki

“…Purpose To quantitatively evaluate the achievable performance of volumetric imaging based on lung motion modeling by principal component analysis (PCA)…”
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A novel range-verification method using ionoacoustic wave generated from spherical gold markers for particle-beam therapy: a simulation study by Takayanagi, Taisuke, Uesaka, Tomoki, Kitaoka, Masanori, Unlu, Mehmet Burcin, Umegaki, Kikuo, Shirato, Hiroki, Xing, Lei, Matsuura, Taeko

“…This study proposes a novel alternative range-verification method for proton beam with acoustic waves generated from spherical metal markers. When proton beam…”
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Intrafractional Baseline Shift or Drift of Lung Tumor Motion During Gated Radiation Therapy With a Real-Time Tumor-Tracking System by Takao, Seishin, PhD, Miyamoto, Naoki, PhD, Matsuura, Taeko, PhD, Onimaru, Rikiya, MD, Katoh, Norio, MD, Inoue, Tetsuya, MD, Sutherland, Kenneth Lee, PhD, Suzuki, Ryusuke, PhD, Shirato, Hiroki, MD, Shimizu, Shinichi, MD

“…Purpose To investigate the frequency and amplitude of baseline shift or drift (shift/drift) of lung tumors in stereotactic body radiation therapy (SBRT), using…”
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Prediction of target position from multiple fiducial markers by partial least squares regression in real-time tumor-tracking radiation therapy by Ukon, Kanako, Arai, Yohei, Takao, Seishin, Matsuura, Taeko, Ishikawa, Masayori, Shirato, Hiroki, Shimizu, Shinichi, Umegaki, Kikuo, Miyamoto, Naoki

“…Abstract The purpose of this work is to show the usefulness of a prediction method of tumor location based on partial least squares regression (PLSR) using…”
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Real‐time CT image generation based on voxel‐by‐voxel modeling of internal deformation by utilizing the displacement of fiducial markers by Hayashi, Risa, Miyazaki, Koichi, Takao, Seishin, Yokokawa, Kohei, Tanaka, Sodai, Matsuura, Taeko, Taguchi, Hiroshi, Katoh, Norio, Shimizu, Shinichi, Umegaki, Kikuo, Miyamoto, Naoki

“…Purpose To show the feasibility of real‐time CT image generation technique utilizing internal fiducial markers that facilitate the evaluation of internal…”
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Impact of a spatially dependent dose delivery time structure on the biological effectiveness of scanning proton therapy by Kasamatsu, Koki, Tanaka, Sodai, Miyazaki, Koichi, Takao, Seishin, Miyamoto, Naoki, Hirayama, Shusuke, Nishioka, Kentaro, Hashimoto, Takayuki, Aoyama, Hidefumi, Umegaki, Kikuo, Matsuura, Taeko

“…Purpose In the scanning beam delivery of protons, different portions of the target are irradiated with different linear energy transfer protons with various…”
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An analytical dose‐averaged LET calculation algorithm considering the off‐axis LET enhancement by secondary protons for spot‐scanning proton therapy by Hirayama, Shusuke, Matsuura, Taeko, Ueda, Hideaki, Fujii, Yusuke, Fujii, Takaaki, Takao, Seishin, Miyamoto, Naoki, Shimizu, Shinichi, Fujimoto, Rintaro, Umegaki, Kikuo, Shirato, Hiroki

“…Purpose To evaluate the biological effects of proton beams as part of daily clinical routine, fast and accurate calculation of dose‐averaged linear energy…”
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Evaluation of the relative biological effectiveness of spot-scanning proton irradiation in vitro by Maeda, Kenichiro, Yasui, Hironobu, Matsuura, Taeko, Yamamori, Tohru, Suzuki, Motofumi, Nagane, Masaki, Nam, Jin-Min, Inanami, Osamu, Shirato, Hiroki

“…Variations in relative biological effectiveness (RBE) from a fixed value of 1.1 are critical in proton beam therapy. To date, studies estimating RBE at…”
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A Consistent Protocol Reveals a Large Heterogeneity in the Biological Effectiveness of Proton and Carbon-Ion Beams for Various Sarcoma and Normal-Tissue-Derived Cell Lines by Yagi, Masashi, Takahashi, Yutaka, Minami, Kazumasa, Matsuura, Taeko, Nam, Jin-Min, Onodera, Yasuhito, Akagi, Takashi, Maeda, Takuya, Okimoto, Tomoaki, Shirato, Hiroki, Ogawa, Kazuhiko

“…This study investigated variations in the relative biological effectiveness (RBE) values among various sarcoma and normal-tissue-derived cell lines (normal…”
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Potential benefits of adaptive intensity‐modulated proton therapy in nasopharyngeal carcinomas by Minatogawa, Hideki, Yasuda, Koichi, Dekura, Yasuhiro, Takao, Seishin, Matsuura, Taeko, Yoshimura, Takaaki, Suzuki, Ryusuke, Yokota, Isao, Fujima, Noriyuki, Onimaru, Rikiya, Shimizu, Shinichi, Aoyama, Hidefumi, Shirato, Hiroki

“…Purpose To investigate potential advantages of adaptive intensity‐modulated proton beam therapy (A‐IMPT) by comparing it to adaptive intensity‐modulated X‐ray…”
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Validation of dose distribution for liver tumors treated with real-time-image gated spot-scanning proton therapy by log data based dose reconstruction by Yamada, Takahiro, Takao, Seishin, Koyano, Hidenori, Nihongi, Hideaki, Fujii, Yusuke, Hirayama, Shusuke, Miyamoto, Naoki, Matsuura, Taeko, Umegaki, Kikuo, Katoh, Norio, Yokota, Isao, Shirato, Hiroki, Shimizu, Shinichi

“…Abstract In spot scanning proton therapy (SSPT), the spot position relative to the target may fluctuate through tumor motion even when gating the radiation by…”
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