Search Results - "Takegawa, Hideki"

Limited impact of setup and range uncertainties, breathing motion and interplay effects in robustly optimized intensity modulated proton therapy for stage III non-small cell lung cancer by Inoue, Tatsuya, M.S, Widder, Joachim, M.D., Ph.D, van Dijk, Lisanne V., M.S, Takegawa, Hideki, Ph.D, Koizumi, Masahiko, M.D., Ph.D, Takashina, Masaaki, Ph.D, Usui, Keisuke, Ph.D, Kurokawa, Chie, Ph.D, Sugimoto, Satoru, Ph.D, Saito, Anneyuko I., M.D., Ph.D, Sasai, Keisuke, M.D., Ph.D, van’t Veld, Aart A., Ph.D, Langendijk, Johannes A., M.D., Ph.D, Korevaar, Erik W., Ph.D

“…Abstract Purpose To investigate the impact of setup and range uncertainties, breathing motion and interplay effects using scanning pencil beams in robustly…”
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Evaluation approach for whole dose distribution in clinical cases using spherical projection and spherical harmonics expansion: spherical coefficient tensor and score method by Anetai, Yusuke, Koike, Yuhei, Takegawa, Hideki, Nakamura, Satoaki, Tanigawa, Noboru

“…Whole dose distribution results from well-conceived treatment plans including patient-specific (location, size and shape of tumor, etc.) and facility-specific…”
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Deep learning-based metal artifact reduction using cycle-consistent adversarial network for intensity-modulated head and neck radiation therapy treatment planning by Koike, Yuhei, Anetai, Yusuke, Takegawa, Hideki, Ohira, Shingo, Nakamura, Satoaki, Tanigawa, Noboru

“…•Deep learning (DL)-based metal artifact reduction (MAR) using unpaired data.•CycleGAN reduced dental implant-induced metal artifacts within a few…”
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Monte Carlo Modeling of the Agility MLC for IMRT and VMAT Calculations by OHIRA, SHINGO, TAKEGAWA, HIDEKI, MIYAZAKI, MASAYOSHI, KOIZUMI, MASAHIKO, TESHIMA, TERUKI

“…Background/Aim: The Purpose of this study was to develop a Monte Carlo (MC) model for the Agility multileaf collimator (MLC) mounted and to validate its…”
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Clinical target volume segmentation based on gross tumor volume using deep learning for head and neck cancer treatment by Kihara, Sayaka, Koike, Yuhei, Takegawa, Hideki, Anetai, Yusuke, Nakamura, Satoaki, Tanigawa, Noboru, Koizumi, Masahiko

“…Accurate clinical target volume (CTV) delineation is important for head and neck intensity-modulated radiation therapy. However, delineation is time-consuming…”
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Artificial intelligence-aided lytic spinal bone metastasis classification on CT scans by Koike, Yuhei, Yui, Midori, Nakamura, Satoaki, Yoshida, Asami, Takegawa, Hideki, Anetai, Yusuke, Hirota, Kazuki, Tanigawa, Noboru

“…Purpose Spinal bone metastases directly affect quality of life, and patients with lytic-dominant lesions are at high risk for neurological symptoms and…”
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Novel angular evaluation method for radiation field using Lie derivative by Anetai, Yusuke, Kinami, Shinji, Koike, Yuhei, Kamojima, Takeo, Yokoi, Masanori, Nishikawa, Toshiyuki, Hirokawa, Keiko, Ishii, Yoshie, Takegawa, Hideki

“…In radiotherapy, quality assurance (QA) for beam delivery from linear accelerator (linac) of treatment machine is a highly crucial factor for accurate…”
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Effect of a lead block on alveolar bone protection in image-guided high-dose-rate interstitial brachytherapy for tongue cancer: using model-based dose calculation algorithms to correct for inhomogeneity by Akiyama, Hironori, Yoshida, Ken, Takenaka, Tadashi, Kotsuma, Tadayuki, Masui, Koji, Monzen, Hajime, Sumida, Iori, Tsujimoto, Yutaka, Miyao, Mamoru, Okumura, Hiroki, Shimbo, Taiju, Takegawa, Hideki, Murakami, Naoya, Inaba, Koji, Kashihara, Tairo, Takácsi-Nagy, Zoltán, Tselis, Nikolaos, Yamazaki, Hideya, Tanaka, Eiichi, Nihei, Keiji, Ariji, Yoshiko

“…The purpose of this study was to evaluate the effect of a lead block for alveolar bone protection in image-guided high-dose-rate interstitial brachytherapy for…”
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A Preliminary Study of In-House Monte Carlo Simulations: An Integrated Monte Carlo Verification System by Mukumoto, Nobutaka, M.S, Tsujii, Katsutomo, M.S, Saito, Susumu, M.S, Yasunaga, Masayoshi, M.S, Takegawa, Hideki, M.S, Yamamoto, Tokihiro, Ph.D, Numasaki, Hodaka, Ph.D, Teshima, Teruki, M.D., Ph.D

“…Purpose To develop an infrastructure for the integrated Monte Carlo verification system (MCVS) to verify the accuracy of conventional dose calculations, which…”
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Development and reproducibility evaluation of a Monte Carlo-based standard LINAC model for quality assurance of multi-institutional clinical trials by Usmani, Muhammad Nauman, Takegawa, Hideki, Takashina, Masaaki, Numasaki, Hodaka, Suga, Masaki, Anetai, Yusuke, Kurosu, Keita, Koizumi, Masahiko, Teshima, Teruki

“…Technical developments in radiotherapy (RT) have created a need for systematic quality assurance (QA) to ensure that clinical institutions deliver prescribed…”
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Effective optimization strategy for large optimization volume object, remaining volume at risk (RVR): α -value selection and usage from generalized equivalent uniform dose (gEUD) curve deviation perspective by Anetai, Yusuke, Takegawa, Hideki, Koike, Yuhei, Nakamura, Satoaki, Tanigawa, Noboru

“…A large optimization volume for intensity-modulated radiation therapy (IMRT), such as the remaining volume at risk (RVR), is traditionally unsuitable for…”
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Extracting the gradient component of the gamma index using the Lie derivative method by Anetai, Yusuke, Doi, Kentaro, Takegawa, Hideki, Koike, Yuhei, Nishio, Teiji, Nakamura, Mitsuhiro

“… The gamma index ( ) has been extensively investigated in the medical physics and applied in clinical practice. However, has a significant limitation when…”
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Patterns of Care Study of Breast-conserving Therapy in Japan: Comparison of the Treatment Process between 1995–1997 and 1999–2001 Surveys by Yamauchi, Chikako, Mitsumori, Michihide, Sai, Heitetsu, Imagunbai, Toshiyuki, Negoro, Yoshiharu, Sasaki, Yoshihide, Hiraoka, Masahiro, Shikama, Naoto, Sasaki, Shigeru, Takegawa, Hideki, Inoue, Toshihiko, Teshima, Teruki

“…Background The Japan Patterns of Care Study (JPCS) conducted two national surveys to identify changes associated with the treatment process of care for…”
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New technology in radiotherapy treatment planning by Takegawa, Hideki

“…Four-dimensional radiation therapy (4DRT) and adaptive radiation therapy (ART) are treatments to account for respiratory motion and anatomical changes during a…”
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Synthetic Low-Energy Monochromatic Image Generation in Single-Energy Computed Tomography System Using a Transformer-Based Deep Learning Model by Koike, Yuhei, Ohira, Shingo, Kihara, Sayaka, Anetai, Yusuke, Takegawa, Hideki, Nakamura, Satoaki, Miyazaki, Masayoshi, Konishi, Koji, Tanigawa, Noboru

“…While dual-energy computed tomography (DECT) technology introduces energy-specific information in clinical practice, single-energy CT (SECT) is predominantly…”
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Deep learning-based detection of patients with bone metastasis from Japanese radiology reports by Doi, Kentaro, Takegawa, Hideki, Yui, Midori, Anetai, Yusuke, Koike, Yuhei, Nakamura, Satoaki, Tanigawa, Noboru, Koziumi, Masahiko, Nishio, Teiji

“…Purpose Deep learning (DL) is a state-of-the-art technique for developing artificial intelligence in various domains and it improves the performance of natural…”
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Patient-specific three-dimensional dose distribution prediction via deep learning for prostate cancer therapy: Improvement with the structure loss by Koike, Yuhei, Takegawa, Hideki, Anetai, Yusuke, Ohira, Shingo, Nakamura, Satoaki, Tanigawa, Noboru

“…•A deep learning-based method was developed for VMAT dose distribution.•A structure loss (Lstruct) was proposed to calculate errors per input contour…”
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Single-Fraction Palliative High-Dose-Rate Brachytherapy for Symptom Management in a 97-Year-Old Patient With Dementia by Yoshida, Ken, Akita, Kohiro, Yoshida, Asami, Yui, Midori, Hirota, Kazuki, Takegawa, Hideki, Anetai, Yusuke, Koike, Yuhei, Harima, Yoko, Shiga, Toshiko, Nakajima, Naomi, Kazawa, Nobukata, Komemushi, Atsushi, Utsunomiya, Keita, Tanigawa, Noboru, Noborio, Reiko, Nakamura, Satoaki

“…Delivering cancer treatment to elderly patients with dementia is often challenging. We describe performing palliative surface mold brachytherapy (SMBT) in an…”
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Cone-Beam CT to CT Image Translation Using a Transformer-Based Deep Learning Model for Prostate Cancer Adaptive Radiotherapy by Koike, Yuhei, Takegawa, Hideki, Anetai, Yusuke, Nakamura, Satoaki, Yoshida, Ken, Yoshida, Asami, Yui, Midori, Hirota, Kazuki, Ueda, Kenichi, Tanigawa, Noboru

“…Cone-beam computed tomography (CBCT) is widely utilized in image-guided radiation therapy; however, its image quality is poor compared to planning CT (pCT),…”
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Combined external radiotherapy and single-fraction palliative high-dose-rate interstitial brachytherapy for a patient with a base of tongue cancer who had a previous radiation history by Yoshida, Ken, Tanaka, Yutaka, Nakamura, Satoaki, Yoshida, Asami, Yui, Midori, Hirota, Kazuki, Maebou, Katsuya, Wang, Zeyun, Takegawa, Hideki, Anetai, Yusuke, Koike, Yuhei, Shiga, Toshiko, Akiyama, Hironori, Murakami, Naoya, Asako, Airi, Ogino, Yuhei, Nishimoto, Hitoshi, Fujisawa, Takuo, Yagi, Masao, Iwai, Hiroshi, Tanigawa, Noboru

“…Only a few studies have explored whether high-dose-rate interstitial brachytherapy (HDR-ISBT) can be indicated as a palliative/symptomatic treatment. We…”
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