Search Results - "Watakabe, Takahiro"

Treatment response after palliative radiotherapy for bleeding gastric cancer: a multicenter prospective observational study (JROSG 17-3) by Saito, Tetsuo, Kosugi, Takashi, Nakamura, Naoki, Wada, Hitoshi, Tonari, Ayako, Ogawa, Hirofumi, Mitsuhashi, Norio, Yamada, Kazunari, Takahashi, Takeo, Ito, Kei, Sekii, Shuhei, Araki, Norio, Nozaki, Miwako, Heianna, Joichi, Murotani, Kenta, Hirano, Yasuhiro, Satoh, Atai, Onoe, Tsuyoshi, Watakabe, Takahiro, Shikama, Naoto

“…Background Palliative radiotherapy seems to be rarely performed for incurable gastric cancer. In this first multicenter study, we examined the effectiveness of…”
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Influence of pain duration on pain outcomes following palliative radiotherapy for painful tumors: the sooner the irradiation, the better? by Saito, Tetsuo, Murotani, Kenta, Yamaguchi, Kohsei, Toya, Ryo, Tomitaka, Etsushi, Watakabe, Takahiro, Oya, Natsuo

“…Purpose The influence of pre-radiotherapy pain duration on post-treatment outcomes was assessed. Methods Patients that received palliative radiotherapy were…”
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Plan Quality Comparisons Between 3D-CRT, IMRT, and VMAT Based on 4D-CT for Gastric MALT Lymphoma by Matsumoto, Tadashi, Toya, Ryo, Shimohigashi, Yoshinobu, Watakabe, Takahiro, Matsuyama, Tomohiko, Saito, Tetsuo, Fukugawa, Yoshiyuki, Kai, Yudai, Oya, Natsuo

“…Background/Aim: We compared three-dimensional conformal RT (3D-CRT), intensity-modulated radiotherapy (IMRT), and volumetric modulated arc therapy (VMAT) for…”
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A prospective comparison of adaptive and fixed boost plans in radiotherapy for glioblastoma by Matsuyama, Tomohiko, Fukugawa, Yoshiyuki, Kuroda, Junichiro, Toya, Ryo, Watakabe, Takahiro, Matsumoto, Tadashi, Oya, Natsuo

“…To analyze the efficacy of adaptive radiotherapy (ART) for glioblastoma. Sixty-one glioblastoma patients who received ART were prospectively evaluated. The…”
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Spleen Dose-Volume Parameters as a Predictor of Treatment-related Lymphopenia During Definitive Chemoradiotherapy for Esophageal Cancer by Saito, Tetsuo, Toya, Ryo, Yoshida, Naoya, Shono, Takashi, Matsuyama, Tomohiko, Ninomura, Satoshi, Watakabe, Takahiro, Sasaki, Yutaka, Baba, Hideo, Oya, Natsuo

“…Our study sought to identify dosimetric predictors of treatment-related lymphopenia during chemoradiotherapy for esophageal cancer. Patients with esophageal…”
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Prevalence and risk factors for retropharyngeal and retro-styloid lymph node metastasis in hypopharyngeal carcinoma by Toya, Ryo, Matsuyama, Tomohiko, Saito, Tetsuo, Fukugawa, Yoshiyuki, Watakabe, Takahiro, Shiraishi, Shinya, Murakami, Daizo, Orita, Yorihisa, Hirai, Toshinori, Oya, Natsuo

“…We evaluated the prevalence and identified the risk factors for retropharyngeal and retro-styloid lymph node metastasis (LNM) in patients with hypopharyngeal…”
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Impact of hybrid FDG-PET/CT on gross tumor volume definition of cervical esophageal cancer: reducing interobserver variation by Toya, Ryo, Matsuyama, Tomohiko, Saito, Tetsuo, Imuta, Masanori, Shiraishi, Shinya, Fukugawa, Yoshiyuki, Iyama, Ayumi, Watakabe, Takahiro, Sakamoto, Fumi, Tsuda, Noriko, Shimohigashi, Yoshinobu, Kai, Yudai, Murakami, Ryuji, Yamashita, Yasuyuki, Oya, Natsuo

“…Abstract Intensity-modulated radiation therapy is being increasingly used to treat cervical esophageal cancer (CEC); however, delineating the gross tumor…”
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Palliative radiotherapy for painful lymph node metastases by Yamaguchi, Kohsei, Saito, Tetsuo, Toya, Ryo, Tomitaka, Etsushi, Matsuyama, Tomohiko, Fukugawa, Yoshiyuki, Watakabe, Takahiro, Otsuka, Hirohito, Oya, Natsuo

“…There is limited evidence concerning radiotherapy for painful lymph node metastases (PLM). We evaluated the effectiveness of radiotherapy for PLM using the…”
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Hypofractionated palliative volumetric modulated arc radiotherapy with the Radiation Oncology Study Group 8502 "QUAD shot" regimen for incurable head and neck cancer by Toya, Ryo, Saito, Tetsuo, Yamaguchi, Kohsei, Matsuyama, Tomohiko, Watakabe, Takahiro, Matsumoto, Tadashi, Yoshida, Ryoji, Hirosue, Akiyuki, Murakami, Daizo, Orita, Yorihisa, Nakayama, Hideki, Oya, Natsuo

“…To review a single institutional experience of the Radiation Therapy Oncology Group (RTOG) 8502 "QUAD shot" regimen using volumetric modulated arc radiotherapy…”
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Impact of metal artifact reduction algorithm on gross tumor volume delineation in tonsillar cancer: reducing the interobserver variation by Fukugawa, Yoshiyuki, Toya, Ryo, Matsuyama, Tomohiko, Watakabe, Takahiro, Shimohigashi, Yoshinobu, Kai, Yudai, Matsumoto, Tadashi, Oya, Natsuo

“…Patients with tonsillar cancer (TC) often have dental fillings that can significantly degrade the quality of computed tomography (CT) simulator images due to…”
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Impact of four-dimensional cone-beam computed tomography on target localization for gastric mucosa-associated lymphoid tissue lymphoma radiotherapy: reducing planning target volume by Shimohigashi, Yoshinobu, Toya, Ryo, Saito, Tetsuo, Kono, Yumiko, Doi, Yasuhiro, Fukugawa, Yoshiyuki, Watakabe, Takahiro, Matsumoto, Tadashi, Kai, Yudai, Maruyama, Masato, Oya, Natsuo

“…Radiotherapy of gastric mucosa-associated lymphoid tissue (MALT) lymphoma should be delivered to the entire stomach with planning target volume (PTV) that…”
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Improvement in pain interference after palliative radiotherapy for solid and hematologic painful tumors: a secondary analysis of a prospective observational study by Saito, Tetsuo, Toya, Ryo, Tomitaka, Etsushi, Matsuyama, Tomohiko, Ninomura, Satoshi, Watakabe, Takahiro, Oya, Natsuo

“…We previously demonstrated that patients with painful hematologic tumors were more likely to experience pain response after palliative radiotherapy (RT) than…”
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Impact of Tc-GSA SPECT Image-Guided Inverse Planning on Dose–Function Histogram Parameters for Stereotactic Body Radiation Therapy Planning for Patients With Hepatocellular Carcinoma: A Dosimetric Comparison Study by Ryo Toya, Tetsuo Saito, Yudai Kai, Shinya Shiraishi, Tomohiko Matsuyama, Takahiro Watakabe, Fumi Sakamoto, Noriko Tsuda, Yoshinobu Shimohigashi, Yasuyuki Yamashita, Natsuo Oya

“…Purpose: To evaluate the impact of 99m Tc-labeled diethylene triamine pentaacetate-galactosyl human serum albumin ( 99m Tc-GSA) single-photon emission computed…”
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Predictors of the Predominance of NonIndex Pain After Palliative Radiation Therapy for Painful Tumors by Saito, Tetsuo, MD, PhD, Toya, Ryo, MD, PhD, Tomitaka, Etsushi, MD, Matsuyama, Tomohiko, MD, PhD, Ninomura, Satoshi, MD, Watakabe, Takahiro, MD, Oya, Natsuo, MD, PhD

“…Abstract Purpose Even when index pain (pain caused by the irradiated tumor) is palliated after radiation therapy (RT), patients may not derive the full…”
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A neuropathic pain component as a predictor of improvement in pain interference after radiotherapy for painful tumors: A secondary analysis of a prospective observational study by Saito, Tetsuo, Tomitaka, Etsushi, Toya, Ryo, Matsuyama, Tomohiko, Ninomura, Satoshi, Watakabe, Takahiro, Oya, Natsuo

“…•A neuropathic component was related to worse pain interference scores at baseline.•A neuropathic component predicted a greater reduction in pain…”
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Impact of 99mTc-GSA SPECT Image-Guided Inverse Planning on Dose–Function Histogram Parameters for Stereotactic Body Radiation Therapy Planning for Patients With Hepatocellular Carcinoma: A Dosimetric Comparison Study by Toya, Ryo, Saito, Tetsuo, Kai, Yudai, Shiraishi, Shinya, Matsuyama, Tomohiko, Watakabe, Takahiro, Sakamoto, Fumi, Tsuda, Noriko, Shimohigashi, Yoshinobu, Yamashita, Yasuyuki, Oya, Natsuo

“…Purpose: To evaluate the impact of 99mTc-labeled diethylene triamine pentaacetate-galactosyl human serum albumin (99mTc-GSA) single-photon emission computed…”
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High Spatial Resolution Digital Positron Emission Tomography Images With Dedicated Source-to-background Algorithm for Radiotherapy Planning by Watakabe, Takahiro, Toya, Ryo, Saito, Tetsuo, Matsuyama, Tomohiko, Shiraishi, Shinya, Kai, Yudai, Shimohigashi, Yoshinobu, Oya, Natsuo

“…To evaluate the utility of high spatial resolution digital positron emission tomography images with the source-to-background ratio (SBR) algorithm for gross…”
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Influence of Respiratory Motion on Dose Distribution in Gastric Mucosa-associated Lymphoid Tissue Lymphoma Radiotherapy by Matsumoto, Tadashi, Toya, Ryo, Shimohigashi, Yoshinobu, Yamaguchi, Kohsei, Watakabe, Takahiro, Matsuyama, Tomohiko, Fukugawa, Yoshiyuki, Kai, Yudai, Oya, Natsuo

“…The present study investigated the effect of respiratory motion on planned radiotherapy (RT) dose for gastric mucosa-associated lymphoid tissue (MALT) lymphoma…”
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Concurrent Chemoradiotherapy With Docetaxel, Cisplatin, and 5-Fluorouracil for T3 N0 Glottic Carcinoma Without Vocal Cord Fixation by Toya, Ryo, Watakabe, Takahiro, Murakami, Daizo, Matsuyama, Tomohiko, Saito, Tetsuo, Fukugawa, Yoshiyuki, Nishimoto, Kohei, Orita, Yorihisa, Oya, Natsuo

“…We retrospectively evaluated the efficacy and toxicity of concurrent chemoradiotherapy (CCRT) with docetaxel, cisplatin, and 5-fluorouracil (TPF) for T3 N0…”
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Diagnostic Value of FDG-PET/CT for the Identification of Extranodal Extension in Patients With Head and Neck Squamous Cell Carcinoma by Toya, Ryo, Saito, Tetsuo, Matsuyama, Tomohiko, Kai, Yudai, Shiraishi, Shinya, Murakami, Daizo, Yoshida, Ryoji, Watakabe, Takahiro, Sakamoto, Fumi, Tsuda, Noriko, Arimura, Hidetaka, Orita, Yorihisa, Nakayama, Hideki, Oya, Natsuo

“…We evaluated the diagnostic value of functional imaging with [ F]-fluoro-2-deoxy-D-glucose (FDG)-positron emission tomography/computed tomography (PET/CT) for…”
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