Search Results - "Oya, Natsuo"

Bias due to statistical handling of death and reirradiation in the assessment of duration of response after palliative radiotherapy: a scoping review and analysis of clinical data by Saito, Tetsuo, Murotani, Kenta, Ito, Kei, Nakamura, Naoki, Oya, Natsuo

“…We investigated the influence of handling death and reirradiation on the estimation of duration of response (DOR). First, we performed a scoping review on…”
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Clinical Outcomes of Biological Effective Dose-Based Fractionated Stereotactic Radiation Therapy for Metastatic Brain Tumors From Non-Small Cell Lung Cancer by Matsuyama, Tomohiko, MD, Kogo, Kasei, MD, Oya, Natsuo, MD

“…Purpose To evaluate the efficacy and toxicity of fractionated stereotactic radiation therapy (FSRT) based on biological effective dose (BED), a novel approach…”
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Predicting the survival of patients with painful tumours treated with palliative radiotherapy: a secondary analysis using the 3-variable number-of-risk-factors model by Sakurai, Takayuki, Saito, Tetsuo, Yamaguchi, Kohsei, Takamatsu, Shigeyuki, Kobayashi, Satoshi, Nakamura, Naoki, Oya, Natsuo

“…The 3-variable number-of-risk-factors (NRF) model is a prognostic tool for patients undergoing palliative radiotherapy (PRT). However, there is little research…”
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Prevalence and risk factors of retro-styloid lymph node metastasis in oropharyngeal carcinoma by Toya, Ryo, Saito, Tetsuo, Fukugawa, Yoshiyuki, Matsuyama, Tomohiko, Matsumoto, Tadashi, Shiraishi, Shinya, Murakami, Daizo, Orita, Yorihisa, Hirai, Toshinori, Oya, Natsuo

“…Supporting data defining the selection criteria of level VIIb for inclusion in the target volume in radiotherapy (RT) planning are insufficient. We evaluated…”
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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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Non-small-cell Lung Cancer with Severe Skin Manifestations Related to Radiation Recall Dermatitis after Atezolizumab Treatment by Nakashima, Kei, Saruwatari, Koichi, Sato, Ryo, Imamura, Kosuke, Kajihara, Ikko, Fukushima, Satoshi, Saito, Tetsuo, Ishizuka, Shiho, Tamanoi, Daisuke, Jodai, Takayuki, Hamada, Shohei, Tomita, Yusuke, Saeki, Sho, Ichiyasu, Hidenori, Oya, Natsuo, Ihn, Hironobu, Sakagami, Takuro

“…Radiation recall dermatitis (RRD) is an inflammatory reaction that occurs at previously irradiated skin regions after drug administration. We herein report a…”
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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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Predictors of Pain Palliation After Radiation Therapy for Painful Tumors: A Prospective Observational Study by Saito, Tetsuo, Toya, Ryo, Tomitaka, Etsushi, Matsuyama, Tomohiko, Ninomura, Satoshi, Oya, Natsuo

“…Although radiation therapy (RT) is an important part of treatment for cancer pain, prediction of the patient's pain response remains difficult. We evaluated…”
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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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Radiation-Induced Myonecrosis: A Case Report of a Cervical Cancer Patient With a History of Systemic Lupus Erythematosus by Yamada, Shigeo, Fukugawa, Yoshiyuki, Otsuka, Takahiro, Saito, Tetsuo, Oya, Natsuo

“…Radiation-induced myonecrosis is a rare but serious complication of radiation therapy. We present a case of a 49-year-old woman with systemic lupus…”
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Pain Response Rates After Conventional Radiation Therapy for Bone Metastases in Prospective Nonrandomized Studies: A Systematic Review by Saito, Tetsuo, Toya, Ryo, Oya, Natsuo

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Prognostic Factors of Salvage Esophagectomy for Residual or Recurrent Esophageal Squamous Cell Carcinoma After Definitive Chemoradiotherapy by Kiyozumi, Yuki, Yoshida, Naoya, Ishimoto, Takatsugu, Yagi, Taisuke, Koga, Yuki, Uchihara, Tomoyuki, Sawayama, Hiroshi, Hiyoshi, Yukiharu, Iwatsuki, Masaaki, Baba, Yoshifumi, Miyamoto, Yuji, Watanabe, Masayuki, Matsuyama, Tomohiko, Oya, Natsuo, Baba, Hideo

“…Background The aim of this study was to confirm prognostic factors for salvage esophagectomy for remnant or recurrent esophageal squamous cell carcinoma after…”
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Dosimetric predictors of treatment-related lymphopenia induced by palliative radiotherapy: predictive ability of dose-volume parameters based on body surface contour by Saito, Tetsuo, Toya, Ryo, Matsuyama, Tomohiko, Semba, Akiko, Oya, Natsuo

“…Radiation-related lymphopenia has been associated with poor patient outcome. Our aim was to identify predictors of lymphopenia after palliative radiotherapy,…”
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Tumor motion changes in stereotactic body radiotherapy for liver tumors: an evaluation based on four-dimensional cone-beam computed tomography and fiducial markers by Shimohigashi, Yoshinobu, Toya, Ryo, Saito, Tetsuo, Ikeda, Osamu, Maruyama, Masato, Yonemura, Keisuke, Nakaguchi, Yuji, Kai, Yudai, Yamashita, Yasuyuki, Oya, Natsuo, Araki, Fujio

“…For stereotactic body radiation therapy (SBRT) of liver tumors, tumor motion induced by respiration must be taken into account in planning and treatment. We…”
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Grading astrocytic tumors by using apparent diffusion coefficient parameters: superiority of a one- versus two-parameter pilot method by Murakami, Ryuji, Hirai, Toshinori, Sugahara, Takeshi, Fukuoka, Hirofumi, Toya, Ryo, Nishimura, Shinichiro, Kitajima, Mika, Okuda, Tomoko, Nakamura, Hideo, Oya, Natsuo, Kuratsu, Jun-ichi, Yamashita, Yasuyuki

“…To assess the utility of both minimum apparent diffusion coefficients (ADCs) and ADC difference values for grading astrocytic tumors at magnetic resonance…”
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Impact of FDG-PET/CT Imaging on Nodal Staging for Head-And-Neck Squamous Cell Carcinoma by Murakami, Ryuji, M.D, Uozumi, Hideaki, M.D, Hirai, Toshinori, M.D, Nishimura, Ryuichi, M.D, Shiraishi, Shinya, M.D, Ota, Kazutoshi, D.D.S, Murakami, Daizo, M.D, Tomiguchi, Seiji, M.D, Oya, Natsuo, M.D, Katsuragawa, Shigehiko, Ph.D, Yamashita, Yasuyuki, M.D

“…Purpose: To evaluate the impact of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) imaging on nodal staging for…”
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Comparison of rigid and deformable image registration for nasopharyngeal carcinoma radiotherapy planning with diagnostic position PET/CT by Kai, Yudai, Arimura, Hidetaka, Toya, Ryo, Saito, Tetsuo, Matsuyama, Tomohiko, Fukugawa, Yoshiyuki, Shiraishi, Shinya, Shimohigashi, Yoshinobu, Maruyama, Masato, Oya, Natsuo

“…Purpose This observer study aimed to compare rigid image registration (RIR) with deformable image registration (DIR) for diagnostic position (DP) positron…”
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A Case of Tumor Lysis Syndrome during Palliative Radiotherapy for Breast Cancer Metastases by Furusawa, Mitsuhiro, Matsuishi, Kozue, Horino, Kei, Inoue, Hideki, Abe, Michio, Oya, Natsuo

“…Abstract Tumor lysis syndrome (TLS) is the rapid disintegration of a malignant tumor treated with anticancer drugs or radiation, causing electrolyte…”
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