Search Results - "SAITO, Akito"

Physical and biological dosimetric margin according to prescription method for stereotactic body radiation therapy by Kawahara, Daisuke, Saito, Akito, Nagata, Yasushi

“…Abstract This study aimed to expand the biological conversion factor (BCF) model, which converts the physical dosimetric margin (PDM) to the biological…”
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A synthesized gamma distribution‐based patient‐specific VMAT QA using a generative adversarial network by Matsuura, Takaaki, Kawahara, Daisuke, Saito, Akito, Yamada, Kiyoshi, Ozawa, Shuichi, Nagata, Yasushi

“…Background Artificial intelligence (AI)‐based gamma passing rate (GPR) prediction has been proposed as a time‐efficient virtual patient‐specific QA method for…”
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Image synthesis of effective atomic number images using a deep convolutional neural network-based generative adversarial network by Kawahara, Daisuke, Ozawa, Shuichi, Saito, Akito, Nagata, Yasushi

“…The effective atomic numbers obtained from dual-energy computed tomography (DECT) can aid in characterization of materials. In this study, an effective atomic…”
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Evaluation of Local Retinal Function in Light-Damaged Rats Using Multifocal Electroretinograms and Multifocal Visual Evoked Potentials by Takita, Yuya, Sugano, Eriko, Kitabayashi, Kazuya, Tabata, Kitako, Saito, Akito, Yokoyama, Takanori, Onoguchi, Reina, Fukuda, Tomokazu, Ozaki, Taku, Bai, Lanlan, Tomita, Hiroshi

“…Electroretinograms (ERGs) are often used to evaluate retinal function. However, assessing local retinal function can be challenging; therefore, photopic and…”
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Analysis of cardiac toxicity after definitive chemoradiotherapy for esophageal cancer using a biological dose–volume histogram by Takeuchi, Yuki, Murakami, Yuji, Kameoka, Tsubasa, Ochi, Masanori, Imano, Nobuki, Takahashi, Ippei, Nishibuchi, Ikuno, Kimura, Tomoki, Kawahara, Daisuke, Saito, Akito, Nagata, Yasushi

“…Abstract This study aimed to evaluate the relationship between cardiac toxicity after definitive chemoradiotherapy (CRT) for esophageal cancer and the…”
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Predictive gamma passing rate of 3D detector array-based volumetric modulated arc therapy quality assurance for prostate cancer via deep learning by Matsuura, Takaaki, Kawahara, Daisuke, Saito, Akito, Miura, Hideharu, Yamada, Kiyoshi, Ozawa, Shuichi, Nagata, Yasushi

“…To predict the gamma passing rate (GPR) of the three-dimensional (3D) detector array-based volumetric modulated arc therapy (VMAT) quality assurance (QA) for…”
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Predictive gamma passing rate by dose uncertainty potential accumulation model by Shiba, Eiji, Saito, Akito, Furumi, Makoto, Murakami, Yuji, Ohguri, Takayuki, Tsuneda, Masato, Yahara, Katsuya, Nishio, Teiji, Korogi, Yukunori, Nagata, Yasushi

“…Purpose Intensity‐modulated radiation therapy (IMRT) utilizes many small fields for producing a uniform dose distribution. Therefore, there are many field…”
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Formulation of objective indices to quantify machine failure risk analysis for interruptions in radiotherapy by Kawahara, Daisuke, Nakano, Hisashi, Saito, Akito, Ochi, Yusuke, Nagata, Yasushi

“…Objectives To evaluate the effect of interruption in radiotherapy due to machine failure in patients and medical institutions using machine failure risk…”
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The formation process of button ulcers in pigs experimentally infected with a subgenotype 2.1 isolate of classical swine fever virus by SUDO, Kasumi, YAMADA, Manabu, OCHIAI, Mariko, IWAMOTO, Shoko, SAKAKI, Hajime, KUSHIDA, Chiho, YAMASHITA, Maiko, YAMAMOTO, Atsushi, NAGASAKA, Takao, OIDEMIZU, Mikio, SAITO, Akito, YAMAMOTO, Kinya

“…We evaluated the role of classical swine fever virus (CSFV) in the formation of button ulcers in the mucosa of the gastrointestinal tract. Histopathological…”
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Tolerance levels of mass density for adaptive helical tomotherapy using MVCT by Tsunemine, Shogo, Ozawa, Shuichi, Nakao, Minora, Miura, Hideharu, Saito, Akito, Kawahara, Daisuke, Onishi, Yasuhiko, Onishi, Takashi, Okawa, Fumito, Terai, Atsushi, Hashiguchi, Taiki, Yamasaki, Hidetoshi, Maruta, Tsutomu, Murakami, Yuji, Nagata, Yasushi

“…Daily dose distributions for adaptive radiotherapy (ART) using helical tomotherapy (HT) are calculated using megavoltage computed tomography (MVCT). Generally,…”
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Evaluation of optimization workflow using custom-made planning through predicted dose distribution for head and neck tumor treatment by Miki, Kentaro, Kusters, Martijn, Nakashima, Takeo, Saito, Akito, Kawahara, Daisuke, Nishibuchi, Ikuno, Kimura, Tomoki, Murakami, Yuji, Nagata, Yasushi

“…•Study on efficient treatment planning in radio therapy was conducted.•To determine the efficient process, predicted dose distribution was used for…”
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Marginal prescription equivalent to the isocenter prescription in lung stereotactic body radiotherapy: preliminary study for Japan Clinical Oncology Group trial (JCOG1408) by Kawahara, Daisuke, Ozawa, Shuichi, Kimura, Tomoki, Saito, Akito, Nishio, Teiji, Nakashima, Takeo, Ohno, Yoshimi, Murakami, Yuji, Nagata, Yasushi

“…A new randomized Phase III trial, the Japan Clinical Oncology Group (JCOG) 1408, which compares two dose fractionations (JCOG 0403 and JCOG 0702) for medically…”
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Influence of different air CT numbers for IVDT on the dose distribution in TomoTherapy MVCT by Tsunemine, Shogo, Ozawa, Shuichi, Nakao, Minoru, Miura, Hideharu, Saito, Akito, Kawahara, Daisuke, Onishi, Yasuhiko, Onishi, Takashi, Hashiguchi, Taiki, Matsumoto, Yoshihisa, Maruta, Tsutomu, Murakami, Yuji, Nagata, Yasushi

“…This study aims to evaluate the effect of different air computed tomography (CT) numbers of the image value density table (IVDT) on the retrospective dose…”
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A Single Institution's Experience of Definitive Radiotherapy Using Volumetric-modulated Arc Therapy for Hypopharyngeal Cancers by Kubo, Katsumaro, Murakami, Yuji, Imano, Nobuki, Takeuchi, Yuki, Nishibuchi, Ikuno, Kimura, Tomoki, Kawahara, Daisuke, Miki, Kentaro, Saito, Akito, Nakashima, Takeo, Hamamoto, Takao, Ueda, Tsutomu, Takeno, Sachio, Nagata, Yasushi

“…Background/Aim: The present study aimed to analyze the treatment outcome after definitive radiotherapy (dRT) using volumetric-modulated arc therapy (VMAT) in…”
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Dosimetric impact of Lipiodol in stereotactic body radiation therapy on liver after trans‐arterial chemoembolization by Kawahara, Daisuke, Ozawa, Shuichi, Saito, Akito, Nishio, Teiji, Kimura, Tomoki, Suzuki, Tatsuhiko, Hioki, Kazunari, Nakashima, Takeo, Ohno, Yoshimi, Murakami, Yuji, Nagata, Yasushi

“…Purpose Stereotactic body radiation therapy (SBRT) combining trans‐arterial chemoembolization (TACE) with Lipiodol is expected to improve local control. This…”
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A novel verification method using a plastic scintillator imagining system for assessment of gantry sag in radiotherapy by Tsuneda, Masato, Nishio, Teiji, Saito, Akito, Tanaka, Sodai, Suzuki, Tatsuhiko, Kawahara, Daisuke, Matsushita, Keiichiro, Nishio, Aya, Ozawa, Shuichi, Karasawa, Kumiko, Nagata, Yasushi

“…Purpose High accuracy of the beam‐irradiated position is required for high‐precision radiation therapy such as stereotactic body radiation therapy (SBRT),…”
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Scintillator screen for measuring low-dose halo in scanning carbon-ion therapy by Yogo, Katsunori, Tatsuno, Yuya, Souda, Hikaru, Matsumura, Akihiko, Tsuneda, Masato, Hirano, Yoshiyuki, Ishiyama, Hiromichi, Saito, Akito, Ozawa, Shuichi, Nagata, Yasushi, Nakano, Takashi, Hayakawa, Kazushige, Kanai, Tatsuaki

“…To ensure safe administration and quality assurance (QA) of scanning carbon-ion therapy doses, an efficient and reliable method to measure the lateral dose…”
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Scintillator screen for measuring dose distribution in scanned carbon-ion therapy by Yogo, Katsunori, Tatsuno, Yuya, Souda, Hikaru, Matsumura, Akihiko, Tsuneda, Masato, Hirano, Yoshiyuki, Ishiyama, Hiromichi, Saito, Akito, Ozawa, Shuichi, Nagata, Yasushi, Nakano, Takashi, Hayakawa, Kazushige, Kanai, Tatsuaki

“…Precise measurement of the dose distribution of a carbon-ion pencil beam is essential for the safe delivery of treatment in scanned carbon-ion therapy. We…”
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Automatic calibration of an arbitrarily‐set near‐infrared camera for patient surface respiratory monitoring by Saito, Akito, Ohashi, Atsuyuki, Nishio, Teiji, Hashimoto, Daiki, Maekawa, Hidemasa, Murakami, Yuji, Ozawa, Shuichi, Suitani, Makiko, Tsuneda, Masato, Ikenaga, Koji, Nagata, Yasushi

“…Purpose A patient's respiratory monitoring is one of the key techniques in radiotherapy for a moving target. Generally, such monitoring systems are permanently…”
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Adhesion strength of paraffin droplet impacted and solidified on metal substrate by Kang, Chao, Sakaguchi, Motoki, Saito, Akito, Inoue, Hirotsugu

“…[Display omitted] •Debonding of solidified splat was observed under various impact conditions.•Scraping test was conducted to evaluate the adhesion strength of…”
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