Search Results - "Shigematsu, Naoyuki"

Efficacy evaluation of 2D, 3D U-Net semantic segmentation and atlas-based segmentation of normal lungs excluding the trachea and main bronchi by Nemoto, Takafumi, Futakami, Natsumi, Yagi, Masamichi, Kumabe, Atsuhiro, Takeda, Atsuya, Kunieda, Etsuo, Shigematsu, Naoyuki

“…ABSTRACT This study aimed to examine the efficacy of semantic segmentation implemented by deep learning and to confirm whether this method is more effective…”
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Effects of sample size and data augmentation on U-Net-based automatic segmentation of various organs by Nemoto, Takafumi, Futakami, Natsumi, Kunieda, Etsuo, Yagi, Masamichi, Takeda, Atsuya, Akiba, Takeshi, Mutu, Eride, Shigematsu, Naoyuki

“…Deep learning has demonstrated high efficacy for automatic segmentation in contour delineation, which is crucial in radiation therapy planning. However, the…”
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Mean heart dose-based normal tissue complication probability model for pericardial effusion: a study in oesophageal cancer patients by Fukada, Junichi, Fukata, Kyohei, Koike, Naoyoshi, Kota, Ryuichi, Shigematsu, Naoyuki

“…We investigated the normal tissue complication probability (NTCP) of the incidence of pericardial effusion (PCE) based on the mean heart dose (MHD) in patients…”
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Acceptable Toxicity After Stereotactic Body Radiation Therapy for Liver Tumors Adjacent to the Central Biliary System by Eriguchi, Takahisa, MD, Takeda, Atsuya, MD, PhD, Sanuki, Naoko, MD, Oku, Yohei, PhD, Aoki, Yousuke, RTT, BMSc, Shigematsu, Naoyuki, MD, PhD, Kunieda, Etsuo, MD, PhD

“…Purpose To evaluate biliary toxicity after stereotactic body radiation therapy (SBRT) for liver tumors. Methods and Materials Among 297 consecutive patients…”
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Incidence of Radiation-induced Nausea and Vomiting: A Prospective Single-institution Pilot Study by Yoshida, Kayo, Hanada, Takashi, Fukada, Junichi, Kawamura, Mariko, Shigematsu, Naoyuki

“…Radiation-induced nausea and vomiting (RINV) is a frequent adverse event that occurs in patients undergoing radiotherapy. However, research on RINV is…”
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Stereotactic body radiotherapy for operable early-stage non-small cell lung cancer by Eriguchi, Takahisa, Takeda, Atsuya, Sanuki, Naoko, Tsurugai, Yuichiro, Aoki, Yousuke, Oku, Yohei, Hara, Yu, Akiba, Takeshi, Shigematsu, Naoyuki

“…Highlights • This is a report of SBRT outcome for medically operable early-stage NSCLC. • SBRT resulted in favorable local control and survival with low…”
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Phase 1 study of plerixafor in combination with total body irradiation-based myeloablative conditioning for allogeneic hematopoietic stem cell transplantation by Mori, Takehiko, Kikuchi, Taku, Yamazaki, Rie, Koda, Yuya, Saburi, Masuho, Sakurai, Masatoshi, Shigematsu, Naoyuki, Okamoto, Shinichiro, Kato, Jun

“…Plerixafor, a CXCR4 inhibitor, has the potential to mobilize leukemic cells, which may contribute to their chemosensitization. This phase 1 study evaluated the…”
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Radiotherapy for localized sebaceous carcinoma of the eyelid: a retrospective analysis of 83 patients by Takagawa, Yoshiaki, Tamaki, Wakana, Suzuki, Shigenobu, Inaba, Koji, Murakami, Naoya, Takahashi, Kana, Igaki, Hiroshi, Nakayama, Yuko, Shigematsu, Naoyuki, Itami, Jun

“…Abstract The current study retrospectively analyzed the results of radiotherapy for clinically localized sebaceous carcinoma of the eyelid.We reviewed records…”
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The impact of the COVID-19 pandemic on radiotherapy in Japan: nationwide surveys from May 2020 through June 2021 by Tamari, Keisuke, Nagata, Yasushi, Mizowaki, Takashi, Kodaira, Takeshi, Onishi, Hiroshi, Ogawa, Kazuhiko, Shioyama, Yoshiyuki, Shigematsu, Naoyuki, Uno, Takashi

“…A longitudinal online questionnaire survey on the impact of coronavirus disease 2019 (COVID-19) on the operation of radiotherapy departments in Japan was…”
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Possible Misinterpretation of Demarcated Solid Patterns of Radiation Fibrosis on CT Scans as Tumor Recurrence in Patients Receiving Hypofractionated Stereotactic Radiotherapy for Lung Cancer by Takeda, Atsuya, M.D., Ph.D, Kunieda, Etsuo, M.D., Ph.D, Takeda, Toshiaki, M.D, Tanaka, Michio, M.D., Ph.D, Sanuki, Naoko, M.D, Fujii, Hirofumi, M.D., Ph.D, Shigematsu, Naoyuki, M.D., Ph.D, Kubo, Atsushi, M.D. Ph.D

“…Purpose To retrospectively analyze opacity changes near primary lung cancer tumors irradiated by using hypofractionated stereotactic radiotherapy (HSRT) to…”
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2-Nitroimidazoles induce mitochondrial stress and ferroptosis in glioma stem cells residing in a hypoxic niche by Koike, Naoyoshi, Kota, Ryuichi, Naito, Yoshiko, Hayakawa, Noriyo, Matsuura, Tomomi, Hishiki, Takako, Onishi, Nobuyuki, Fukada, Junichi, Suematsu, Makoto, Shigematsu, Naoyuki, Saya, Hideyuki, Sampetrean, Oltea

“…Under hypoxic conditions, nitroimidazoles can replace oxygen as electron acceptors, thereby enhancing the effects of radiation on malignant cells. These…”
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Evaluation of dose perturbations around iodine-125 seed sources in supplemental external beam prostate radiotherapy by Kanda, Daisuke, Hanada, Takashi, Yoshida, Kayo, Tanaka, Tomoki, Eriguchi, Takahisa, Yorozu, Atsunori, Ohashi, Toshio, Shigematsu, Naoyuki

“…Abstract We investigated dose perturbations caused by 125I seeds in patients undergoing supplemental external beam radiotherapy (EBRT) for prostate cancer. We…”
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Symptomatic Pericardial Effusion After Chemoradiation Therapy in Esophageal Cancer Patients by Fukada, Junichi, MD, PhD, Shigematsu, Naoyuki, MD, PhD, Takeuchi, Hiroya, MD, PhD, Ohashi, Toshio, MD, PhD, Saikawa, Yoshiro, MD, PhD, Takaishi, Hiromasa, MD, PhD, Hanada, Takashi, PhD, Shiraishi, Yutaka, MD, Kitagawa, Yuko, MD, PhD, Fukuda, Keiichi, MD, PhD

“…Purpose We investigated clinical and treatment-related factors as predictors of symptomatic pericardial effusion in esophageal cancer patients after concurrent…”
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Stereotactic Body Radiotherapy for Primary Lung Cancer at a Dose of 50 Gy Total in Five Fractions to the Periphery of the Planning Target Volume Calculated Using a Superposition Algorithm by Takeda, Atsuya, M.D., Ph.D, Sanuki, Naoko, M.D, Kunieda, Etsuo, M.D., Ph.D, Ohashi, Toshio, M.D, Oku, Yohei, Ph.D, Takeda, Toshiaki, M.D, Shigematsu, Naoyuki, M.D., Ph.D, Kubo, Atsushi, M.D., Ph.D

“…Purpose To retrospectively analyze the clinical outcomes of stereotactic body radiotherapy (SBRT) for patients with Stages 1A and 1B non–small-cell lung…”
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Toxicities of organs at risk in the mediastinal and hilar regions following stereotactic body radiotherapy for centrally located lung tumors by Nishimura, Shuichi, Takeda, Atsuya, Sanuki, Naoko, Ishikura, Satoshi, Oku, Yohei, Aoki, Yousuke, Kunieda, Etsuo, Shigematsu, Naoyuki

“…We investigated tolerable doses to organs at risk (OARs) in the mediastinum and pulmonary hilum following stereotactic body radiotherapy for centrally located…”
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Dosimetric comparison of rectal dose-reductive techniques in intra-cavitary brachytherapy for cervical cancer: A retrospective analysis by Sawada, Masafumi, Shiraishi, Yutaka, Toyama, Hirofumi, Tanaka, Tomoki, Kota, Ryuichi, Shigematsu, Naoyuki

“…PurposeRectal complications in radiotherapy for cervical cancer can highly affect quality of life and correlate with rectal dose. Vaginal gauze packing (VP)…”
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The impact of the COVID‐19 pandemic on radiotherapy delivery in Japan: An observational study based on the national database by Tamari, Keisuke, Kishigami, Maiko, Nagata, Yasushi, Mizowaki, Takashi, Kodaira, Takeshi, Onishi, Hiroshi, Ogawa, Kazuhiko, Shioyama, Yoshiyuki, Shigematsu, Naoyuki, Uno, Takashi

“…Background This study analyzed the impact of the coronavirus disease 2019 (COVID‐19) pandemic on radiotherapy delivery in Japan using a high‐quality Japanese…”
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Influence of chemoradiotherapy on nutritional status in locally advanced rectal cancer: Prospective multicenter study by Yamano, Tomoki, Tomita, Naohiro, Sato, Takeo, Hayakawa, Kazushige, Kamikonya, Norihiko, Matoba, Shuichiro, Uki, Akiyoshi, Baba, Hideo, Oya, Natsuo, Hasegawa, Hirotoshi, Shigematsu, Naoyuki, Hiraoka, Masahiro, Shimada, Mitsuo, Noda, Masafumi, Sakai, Yoshiharu, Sato, Hirohiko, Saegusa, Makoto, Takeuchi, Masahiro, Oguchi, Masahiko, Oya, Masatoshi, Watanabe, Masahiko

“…Objective: The aim of this study was to investigate the influence of chemoradiotherapy (CRT) on nutritional status and the association between changes in…”
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Relationship between radiation doses and erectile function deterioration in patients with localized prostate cancer treated with permanent prostate brachytherapy by Shigeta, Keisuke, Kikuchi, Eiji, Matsushima, Masashi, Ogihara, Koichiro, Kosaka, Takeo, Mizuno, Ryuichi, Tanaka, Tomoki, Shigematsu, Naoyuki, Oya, Mototsugu

“…Objectives To investigate the relationship between radiation doses in prostate brachytherapy and deterioration of erectile function in patients with localized…”
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Practical guidelines of online MR-guided adaptive radiotherapy by Okamoto, Hiroyuki, Igaki, Hiroshi, Chiba, Takahito, Shibuya, Keiko, Sakasai, Tatsuya, Jingu, Keiichi, Inaba, Koji, Kuroda, Kagayaki, Aoki, Shigeki, Tatsumi, Daisaku, Nakamura, Mitsuhiro, Kadoya, Noriyuki, Furuyama, Yoshinobu, Kumazaki, Yu, Tohyama, Naoki, Tsuneda, Masato, Nishioka, Shie, Itami, Jun, Onishi, Hiroshi, Shigematsu, Naoyuki, Uno, Takashi

“…Abstract The first magnetic resonance (MR)-guided radiotherapy system in Japan was installed in May 2017. Implementation of online MR-guided adaptive…”
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