Koji Konishi

Correction: Efficacy and safety of endoscopic resection followed by chemoradiotherapy with S-1 plus cisplatin for esophageal cancer

Yasuhiro Tani, Ryu Ishihara, Sachiko Yamamoto, Minoru Kato et autres

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Dosimetric comparison of automated noncoplanar volumetric-modulated arc therapy and intensity-modulated proton therapy for total scalp irradiation in angiosarcoma of the scalp

Shoki Inui, Natsuo Tomita, Taiki Takaoka, Akane Matsuura et autres

OBJECTIVES: To compare the dosimetric performance of HyperArc (HA) and intensity-modulated proton therapy (IMPT) for total scalp irradiation (TSI) in patients with angiosarcoma of the scalp (AS). METHODS: HA and IMPT treatment plans were retrospectively generated for 27 patients with AS. Prescription …

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Efficacy and safety of endoscopic resection followed by chemoradiotherapy with S-1 plus cisplatin for esophageal cancer

Yasuhiro Tani, Ryu Ishihara, Sachiko Yamamoto, Minoru Kato et autres

jp (code pays fourni par la source)

Dosimetric impact of knowledge-based automated planning using HyperArc for angiosarcoma of the scalp

Shoki Inui, Natsuo Tomita, Taiki Takaoka, Yoshihiro Ueda et autres

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Nationwide trends in radiotherapy use among older patients with early-stage non-small cell lung cancer in Japan, 2013–2022

Toshiki Ikawa, Kayo Nakata, Kenji Kishimoto, Toshitaka Morishima et autres

This study examined trends in radiotherapy use among older patients with early-stage non-small cell lung cancer (NSCLC) in Japan. Using hospital-based cancer registry data (2013–2022), we analyzed 295,662 patients aged ≥ 65 years with epithelial lung tumors (clinical Tis–T2N0M0), excluding those with …

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Secondary Lower‐Body Sarcomas in Cervical Cancer Survivors Following Surgery, Radiotherapy, or Both: A Population‐Based Study

Toshiki Ikawa, Kayo Nakata, Toshitaka Morishima, Kenichi Yoshida et autres

Secondary sarcomas in cervical cancer survivors are understudied. We investigated the incidence and subtypes of secondary sarcomas by treatment modalities, the prognosis of secondary sarcomas, and whether surgery plus radiotherapy increases angiosarcoma incidence. This population-based retrospective cohort study analyzed Osaka Cancer Registry …

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Source position evaluation using X-ray fluoroscopy of the Geneva and Venezia applicators for brachytherapy: An assessment of inter-applicator differences

Sayaka Kihara, Yoshihiro Ueda, Masahiro Morimoto, Setsuo Tamenaga et autres

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Evaluation of a novel mask balloon immobilization system for reducing intra-fractional setup errors in spinal stereotactic body radiation therapy

Kamimura Kazushi, Yoshihiro Ueda, Masaru Isono, Shoki Inui et autres

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Prognostic factors after salvage resection for local progression of brain metastases after radiotherapy

Hideyuki Arita, Toshiki Ikawa, Naoyuki Kanayama, Masahiro Morimoto et autres

BACKGROUND: Recent advances in cancer treatment have prolonged survival after the onset of brain metastasis (BM), increasing the incidence of local progression (LP) following radiotherapy. However, no standard approach exists for managing LP. We aimed to evaluate the outcomes of salvage surgery …

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Impact of contrast-enhanced agent on segmentation using a deep learning-based software “Ai-Seg” for head and neck cancer

Sayaka Kihara, Yoshihiro Ueda, Shuichi Harada, Akira Masaoka et autres

OBJECTIVES: In radiotherapy, auto-segmentation tools using deep learning assist in contouring organs-at-risk (OARs). We developed a segmentation model for head and neck (HN) OARs dedicated to contrast-enhanced (CE) computed tomography (CT) using the segmentation software, Ai-Seg, and compared the performance between CE …

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Efficacy of Locoregional Treatment for Oligo-Drug-Resistant Lesions during First-Line Atezolizumab plus Bevacizumab Therapy for Unresectable Hepatocellular Carcinoma: A Single-Center Retrospective Study

Tasuku Nakabori, Sena Higashi, Kaori Mukai, Toshiki Ikawa et autres

INTRODUCTION: Despite recent advancements, outcomes for unresectable hepatocellular carcinoma (HCC) treated with atezolizumab plus bevacizumab (atezo/bev) remain suboptimal, with drug resistance posing a major challenge. This study evaluated the efficacy of additional locoregional treatments (LRTs) for oligo-atezo/bev-resistant lesions. METHODS: We retrospectively analyzed …

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Dosimetric Comparison of Brain Sparing Between HyperArc and GammaKnife for Single to Triple Brain Metastases

Yoshihiro Ueda, Kanji Mori, Shingo Ohira, Kazuo Tarutani et autres

Background/Aim: A novel linac-bases radiosurgery (SRS) system, HyperArc, applied to the non-coplanar volume-modulated arc therapy (VMAT) technique, was developed and released in clinical practice. The aim of the study was to evaluate the dosimetric performance of brain sparing in single-target to three-target …

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