Search Results - "Majima, Kazuhiro"

Patient-Specific Quality Assurance Using Monte Carlo Dose Calculation and Elekta Log Files for Prostate Volumetric-Modulated Arc Therapy by Katsuta, Yoshiyuki, Kadoya, Noriyuki, Fujita, Yukio, Shimizu, Eiji, Matsunaga, Kenichi, Sawada, Kinya, Matsushita, Haruo, Majima, Kazuhiro, Jingu, Keiichi

“…Log file–based methods are attracting increasing interest owing to their ability to validate volumetric-modulated arc therapy outputs with high resolution in…”
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Quantification of residual dose estimation error on log file-based patient dose calculation by Katsuta, Yoshiyuki, Kadoya, Noriyuki, Fujita, Yukio, Shimizu, Eiji, Matsunaga, Kenichi, Matsushita, Haruo, Majima, Kazuhiro, Jingu, Keiichi

“…Highlights • We quantified residual dose estimation error for log file-based method. • The residual error cannot be reflected on estimated dose. • The…”
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Effects of cyclic intermittent etidronate therapy on coronary artery calcification in patients receiving long-term hemodialysis by Nitta, Kosaku, Akiba, Takashi, Suzuki, Koichi, Uchida, Keiko, Watanabe, Ryo-Ichiro, Majima, Kazuhiro, Aoki, Takanao, Nihei, Hiroshi

“…Background: Coronary artery calcification (CAC) is thought to be associated with greater cardiovascular mortality in patients with end-stage renal disease than…”
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Clinical impact of dosimetric changes for volumetric modulated arc therapy in log file-based patient dose calculations by Katsuta, Yoshiyuki, Kadoya, Noriyuki, Fujita, Yukio, Shimizu, Eiji, Matsunaga, Kenichi, Matsushita, Haruo, Majima, Kazuhiro, Jingu, Keiichi

“…•We evaluated clinical impact of dosimetric changes on log file-based method.•At the TG 142 tolerance, changes in TCP/NTCP were <1.8% on PTV and <2.4% on…”
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Assessment of Coronary Artery Calcification in Hemodialysis Patients Using Multi-Detector Spiral CT Scan by NITTA, Kosaku, AKIBA, Takashi, SUZUKI, Koichi, UCHIDA, Keiko, OGAWA, Tetsuya, MAJIMA, Kazuhiro, WATANABE, Ryo-ichiro, AOKI, Takanao, NIHEI, Hiroshi

“…Cardiovascular disease in association with coronary artery calcification (CAC) is the leading cause of death in patients with end-stage renal disease (ESRD)…”
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High-resolution magnetic resonance imaging of rotator cuff tears using a microscopy coil: noninvasive detection without intraarticular contrast material by Hitachi, Shin, Takase, Kei, Tanaka, Minoru, Tojo, Yuichi, Tabata, Shiro, Majima, Kazuhiro, Higano, Shuichi, Takahashi, Shoki

“…Purpose The aim of this study was to evaluate the feasibility of high-resolution magnetic resonance imaging (MRI) using a microscopy coil for the diagnosis of…”
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Efficacy of exponentiation method with a convolutional neural network for classifying lung nodules on CT images by malignancy level by Usuzaki, Takuma, Takahashi, Kengo, Takagi, Hidenobu, Ishikuro, Mami, Obara, Taku, Yamaura, Takumi, Kamimoto, Masahiro, Majima, Kazuhiro

“…Objectives The aim of this study was to examine the performance of a convolutional neural network (CNN) combined with exponentiating each pixel value in…”
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Letter to the Editor: Comment on ‘‘Radiomics with Artificial Intelligence for the Prediction of Early Recurrence in Patients with Clinical Stage IA Lung Cancer’’ by Usuzaki, Takuma, Takahashi, Kengo, Ishikuro, Mami, Obara, Taku, Yamaura, Takumi, Kamimoto, Masahiro, Majima, Kazuhiro

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Adrenal adenomas: relationship between histologic lipid-rich cells and CT attenuation number by Yamada, Takayuki, Ishibashi, Tadashi, Saito, Haruo, Matsuhashi, Toshio, Majima, Kazuhiro, Tsuda, Masashi, Takahashi, Shoki, Moriya, Takuya

“…Objective: To evaluate the relationship between lipid-rich cells of the adrenal adenoma and precontrast computed tomographic (CT) attenuation numbers in three…”
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Augmentation method for convolutional neural network that improves prediction performance in the task of classifying primary lung cancer and lung metastasis using CT images by Usuzaki, Takuma, Takahashi, Kengo, Umemiya, Kazuma, Ishikuro, Mami, Obara, Taku, Kamimoto, Masahiro, Majima, Kazuhiro

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Effects of cyclic intermittent etidronate therapy on Coronary artery calcification in patients receiving long-term hemodialysis by NITTA, Kosaku, AKIBA, Takashi, SUZUKI, Koichi, UCHIDA, Keiko, WATANABE, Ryo-Lchiro, MAJIMA, Kazuhiro, AOKI, Takanao, NIHEI, Hiroshi

“…Coronary artery calcification (CAC) is thought to be associated with greater cardiovascular mortality in patients with end-stage renal disease than in…”
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Grading diffuse glioma based on 2021 WHO grade using self-attention-base deep learning architecture: variable Vision Transformer (vViT) by Usuzaki, Takuma, Takahashi, Kengo, Inamori, Ryusei, Morishita, Yohei, Takagi, Hidenobu, Shizukuishi, Takashi, Toyama, Yoshitaka, Abe, Mirei, Ishikuro, Mami, Obara, Taku, Majima, Kazuhiro, Takase, Kei

“…To evaluate the diagnostic performance of the self-attention-based model, termed variable Vision Transformer (vViT), in the task of predicting the grade of…”
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Blood flow changes of the anterior humeral circumflex artery decrease with the scapula in internal rotation by Hagiwara, Yoshihiro, Kanazawa, Kenji, Ando, Akira, Nimura, Akimoto, Watanabe, Takashi, Majima, Kazuhiro, Akita, Keiichi, Itoi, Eiji

“…Purpose Poor posture is strongly related to scapular kinematics and shoulder diseases. The purpose of this study was to clarify the blood flow changes of the…”
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Log file-based patient dose calculations of double-arc VMAT for head-and-neck radiotherapy by Katsuta, Yoshiyuki, Kadoya, Noriyuki, Fujita, Yukio, Shimizu, Eiji, Majima, Kazuhiro, Matsushita, Haruo, Takeda, Ken, Jingu, Keiichi

“…•Dosimetric changes on double-arc VMAT in log file-based method were explored.•Changes in Dmean were 0.9 Gy on PTV and <0.7 Gy on OARs.•Changes in TCP/NTCP…”
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Computed tomography appearance of high-dose-irradiated hepatic parenchyma surrounding small tumors after stereotactic radiotherapy by Wada, Hitoshi, Nemoto, Kenji, Majima, Kazuhiro, Hitachi, Shin, Sato, Akihiro, Tominaga, Kunihiko, Yamada, Shogo

“…The purpose of this study was to demonstrate the computed tomography (CT) appearance of high-dose-irradiated hepatic parenchyma surrounding small tumors after…”
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Two cases of adrenal hemangioma: CT and MRI findings with pathological correlations by Yamada, Takayuki, Ishibashi, Tadashi, Saito, Haruo, Majima, Kazuhiro, Tsuda, Masashi, Takahashi, Shoki, Moriya, Takuya

“…We present two cases of adrenal hemangioma, a rare non-functioning adrenal tumor, and correlate the CT and MR imaging findings with the pathological findings…”
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Time-Related Changes of Radiofrequency Ablation Lesion in the Normal Rabbit Liver: Findings of Magnetic Resonance Imaging and Histopathology by Tsuda, Masashi, Rikimaru, Hiroya, Majima, Kazuhiro, Yamada, Takayuki, Saito, Haruo, Ishibashi, Tadashi, Takahashi, Shoki, Miyachi, Hideo, Endoh, Mareyuki, Yamada, Shogo

“…RATIONALE AND OBJECTIVESTo study time-related magnetic resonance imaging (MRI) and histopathological findings after radiofrequency ablation (RFA) in the normal…”
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