全部文献期刊会议图书|学者科研项目
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作者:... Takaaki Matsuura , Kiyoshi Yamada , Yasushi Nagata
来源:[J].Australasian Physical & Engineering Sciences in Medicine(IF 0.885), 2017, Vol.40 (4), pp.939-942
摘要:Patient motion monitoring systems play an important role in providing accurate treatment dose delivery. We propose a system that utilizes a web camera (frame rate up to 30 fps, maximum resolution of 640 × 480 pixels) and an in-house image processing software (developed using...
作者:... Tsutomu Ueda , Katsuhiro Hirakawa , Yasushi Nagata
来源:[J].Japanese Journal of Radiology(IF 0.73), 2017, Vol.35 (11), pp.673-680
摘要:The purpose of this study was to analyze the clinical results of concurrent chemoradiotherapy (CCRT) with volumetric modulated arc therapy (VMAT) for nasopharyngeal carcinoma (NPC) patients.
作者:Yasushi Nagata , Hideyuki Harada ...
来源:[J].International Journal of Clinical Oncology(IF 1.727), 2017, Vol.22 (5), pp.849-856
摘要:To investigate the maximum tolerated dose (MTD) and recommended dose (RD) of stereotactic body radiation therapy (SBRT) for centrally located stage IA non-small cell lung cancer (NSCLC).
作者:... Katsumaro Kubo , Masahiko Kenjo , Yasushi Nagata
来源:[J].Medical Dosimetry(IF 1.009), 2020
摘要:Abstract(#br)Tumor geometric reproducibility for lung stereotactic body radiotherapy (SBRT) is an important issue in the breath-hold (BH) technique. We investigated the inter-BH reproducibility of the tumor position in expiratory BH using our proposed vector volume histogram...
作者:Yasushi Nagata , Takashi Nakano ...
来源:[J].Radiation Measurements(IF 0.861), 2020, Vol.133
摘要:Abstract(#br)To ensure safe administration and quality assurance (QA) of scanning carbon-ion therapy doses, an efficient and reliable method to measure the lateral dose profile of a carbon-ion pencil beam, including the low-dose halo, is required. We developed a simple, expeditio...
作者:... Hiroshi Yasuda , Yasushi Nagata , Kazushige Hayakawa
来源:[J].Scientific Reports(IF 2.927), 2020, Vol.10 (4), pp.375-403
摘要:Abstract(#br)With advances in high-dose-rate (HDR) brachytherapy, the importance of quality assurance (QA) is increasing to ensure safe delivery of the treatment by measuring dose distribution and positioning the source with much closer intervals for highly active sources. H...
作者:... Keiichi Ohnishi , Masahiro Kenjo , Yasushi Nagata
来源:[J].Physica Medica(IF 1.167), 2019, Vol.64, pp.24-28
摘要:Abstract(#br)Purpose(#br)The detection of intestinal/rectal gas is very important during image-guided radiation therapy (IGRT) of prostate cancer patients because intestinal/rectal gas increases the inter- and intra-fractional prostate motion. We propose a deep convolutional...
作者:... Yuji Murakami , Kazuo Awai , Yasushi Nagata
来源:[J].Medical Dosimetry(IF 1.009), 2017, Vol.42 (2), pp.97-103
摘要:Abstract(#br)The aim of the current planning study is to evaluate the ability of gadoxetate disodium-enhanced magnetic resonance imaging (EOB-MRI)–guided stereotactic body radiation therapy (SBRT) planning by using intensity-modulated radiation therapy (IMRT) techniques in s...
作者:... Tomoki Kimura , Ikuno Nishibuchi , Yasushi Nagata
来源:[J].Physica Medica(IF 1.167), 2018, Vol.54, pp.34-41
摘要:Abstract(#br)Purpose(#br)In volumetric-modulated arc therapy (VMAT), field configurations such as couch or arc angles are defined manually or using a template. A field configuration is reselected through trial-and-error in the case of undesirable resultant planning. To effic...

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