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S. Ishikura · SciRah

Researcher profile · Semantic Scholar

S. Ishikura

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S. Ishikura — researcher profile on SciRah

h-index: 40
Works: 235
Citations: 6,064

Most-cited papers

Prospective Trial of Stereotactic Body Radiation Therapy for Both Operable and Inoperable T1N0M0 Non-Small Cell Lung Cancer: Japan Clinical Oncology Group Study JCOG0403.
Y. Nagata, M. Hiraoka, T. Shibata, H. Onishi +13 more
2015International Journal of Radiation Oncology, Biology, Physics398 citations
Semantic Scholar
Randomized study of low-dose versus standard-dose chemoradiotherapy for unresectable esophageal squamous cell carcinoma (JCOG0303)
M. Shinoda, N. Ando, Ken Kato, S. Ishikura +10 more
2015Cancer Science155 citations Open access
Semantic Scholar
Organ at risk delineation for radiation therapy clinical trials: Global Harmonization Group consensus guidelines.
R. Mir, S. Kelly, Ying Xiao, A. Moore +18 more
2020Radiotherapy and Oncology96 citations Open access
Semantic Scholar
Radiation therapy quality assurance in clinical trials – Global harmonisation group
C. Melidis, W. Bosch, J. Izewska, E. Fidarova +14 more
2014Radiotherapy and Oncology66 citations Open access
Semantic Scholar
Multicenter prospective study of stereotactic body radiotherapy for previously untreated solitary primary hepatocellular carcinoma: The STRSPH study
Tomoki Kimura, A. Takeda, N. Sanuki, K. Ariyoshi +10 more
2020Hepatology Research62 citations Open access
Semantic Scholar
Global harmonization of quality assurance naming conventions in radiation therapy clinical trials.
C. Melidis, W. Bosch, J. Izewska, E. Fidarova +13 more
2014International Journal of Radiation Oncology, Biology, Physics60 citations
Semantic Scholar
Lung Cancer in Japan.
H. Horinouchi, M. Kusumoto, Y. Yatabe, K. Aokage +2 more
2022Journal of Thoracic Oncology58 citations Open access
Semantic Scholar
Toxicities of Organs at Risk in the Mediastinal and Hilar Regions Following Stereotactic Body Radiotherapy for Centrally Located Lung Tumors
Shuichi Nishimura, A. Takeda, N. Sanuki, S. Ishikura +4 more
2014Journal of Thoracic Oncology51 citations Open access
Semantic Scholar
Results of a multi-institutional, randomized, non-inferiority, phase III trial of accelerated fractionation versus standard fractionation in radiation therapy for T1-2N0M0 glottic cancer: Japan Clinical Oncology Group Study (JCOG0701)
T. Kodaira, Yoshikazu Kagami, T. Shibata, N. Shikama +17 more
2018Annals of Oncology44 citations Open access
Semantic Scholar
A randomized Phase III trial of comparing two dose-fractionations stereotactic body radiotherapy (SBRT) for medically inoperable Stage IA non-small cell lung cancer or small lung lesions clinically diagnosed as primary lung cancer: Japan Clinical Oncology Group Study JCOG1408 (J-SBRT trial).
Tomoki Kimura, Y. Nagata, J. Eba, S. Ozawa +5 more
2017Japanese Journal of Clinical Oncology43 citations
Semantic Scholar
Randomized phase II/III trial of post-operative chemoradiotherapy comparing 3-weekly cisplatin with weekly cisplatin in high-risk patients with squamous cell carcinoma of head and neck: Japan Clinical Oncology Group Study (JCOG1008).
F. Kunieda, N. Kiyota, M. Tahara, T. Kodaira +6 more
2014Japanese Journal of Clinical Oncology42 citations Open access
Semantic Scholar
A questionnaire-based survey on 3D image-guided brachytherapy for cervical cancer in Japan: advances and obstacles
T. Ohno, T. Toita, K. Tsujino, N. Uchida +3 more
2015Journal of Radiation Research38 citations Open access
Semantic Scholar
Esophageal stenosis and the Glasgow Prognostic Score as independent factors of poor prognosis for patients with locally advanced unresectable esophageal cancer treated with chemoradiotherapy (exploratory analysis of JCOG0303)
T. Okuno, M. Wakabayashi, Ken Kato, M. Shinoda +15 more
2017International Journal of Clinical Oncology35 citations Open access
Semantic Scholar
Chemoradiotherapy in Elderly Patients With Non–Small‐Cell Lung Cancer: Long‐Term Follow‐Up of a Randomized Trial (JCOG0301)
S. Atagi, J. Mizusawa, S. Ishikura, Toshiaki Takahashi +16 more
2018Clinical Lung Cancer32 citations
Semantic Scholar
Phase I study of stereotactic body radiation therapy for peripheral T2N0M0 non-small cell lung cancer with PTV<100 cc using a continual reassessment method (JCOG0702).
R. Onimaru, H. Shirato, T. Shibata, M. Hiraoka +8 more
2015Radiotherapy and Oncology32 citations Open access
Semantic Scholar
An on-site audit system for dosimetry credentialing of intensity-modulated radiotherapy in Japanese Clinical Oncology Group (JCOG) clinical trials.
M. Nakamura, T. Minemura, S. Ishikura, T. Nishio +2 more
2016Physica medica (Testo stampato)27 citations
Semantic Scholar
Stereotactic body radiotherapy versus lobectomy for operable clinical stage IA lung adenocarcinoma: comparison of survival outcomes in two clinical trials with propensity score analysis (JCOG1313-A).
J. Eba, Kenichi Nakamura, J. Mizusawa, Kenji Suzuki +7 more
2016Japanese Journal of Clinical Oncology25 citations Open access
Semantic Scholar
Nimotuzumab combined with concurrent chemoradiotherapy in Japanese patients with esophageal cancer: A phase I study
Ken Kato, T. Ura, W. Koizumi, S. Iwasa +6 more
2018Cancer Science21 citations Open access
Semantic Scholar
Phase I study of stereotactic body radiation therapy for peripheral T2N0M0 non-small cell lung cancer (JCOG0702): Results for the group with PTV⩾100cc.
R. Onimaru, H. Onishi, T. Shibata, M. Hiraoka +8 more
2017Radiotherapy and Oncology21 citations Open access
Semantic Scholar
A phase I/II study on stereotactic body radiotherapy with real-time tumor tracking using CyberKnife based on the Monte Carlo algorithm for lung tumors
H. Iwata, S. Ishikura, T. Murai, M. Iwabuchi +5 more
2017International Journal of Clinical Oncology20 citations
Semantic Scholar
Organs-at-risk dose constraints in head and neck intensity-modulated radiation therapy using a dataset from a multi-institutional clinical trial (JCOG1015A1)
M. Inada, Y. Nishimura, S. Ishikura, K. Ishikawa +15 more
2022Radiation Oncology18 citations Open access
Semantic Scholar
A virtual dosimetry audit - Towards transferability of gamma index analysis between clinical trial QA groups.
M. Hussein, E. Clementel, D. Eaton, P. Greer +9 more
2017Radiotherapy and Oncology17 citations
Semantic Scholar
A phase II study of adaptive two-step intensity-modulated radiation therapy (IMRT) with chemotherapy for loco-regionally advanced nasopharyngeal cancer (JCOG1015)
Y. Nishimura, S. Ishikura, T. Shibata, T. Kodaira +15 more
2020International Journal of Clinical Oncology16 citations
Semantic Scholar
Radiotherapy alone for stage IE ocular adnexal mucosa-associated lymphoid tissue lymphomas: long-term results
M. Niwa, S. Ishikura, Kotoha Tatekawa, N. Takama +4 more
2020Radiation Oncology16 citations Open access
Semantic Scholar
Impact of pre-treatment C-reactive protein level and skeletal muscle mass on outcomes after stereotactic body radiotherapy for T1N0M0 non-small cell lung cancer: a supplementary analysis of the Japan Clinical Oncology Group study JCOG0403
Y. Matsuo, Y. Nagata, M. Wakabayashi, S. Ishikura +6 more
2021Journal of Radiation Research13 citations Open access
Semantic Scholar
Long-term results of intensity-modulated radiotherapy with three dose-fractionation regimens for localized prostate cancer
S. Takemoto, Y. Shibamoto, C. Sugie, Y. Manabe +4 more
2018Journal of Radiation Research13 citations Open access
Semantic Scholar
A new two-step accurate CT-MRI fusion technique for post-implant prostate cancer
H. Kunogi, H. Hojo, Y. Wakumoto, A. Saito +4 more
2015Journal of Contemporary Brachytherapy13 citations Open access
Semantic Scholar
Design, development of water tank-type lung phantom and dosimetric verification in institutions participating in a phase I study of stereotactic body radiation therapy in patients with T2N0M0 non-small cell lung cancer: Japan Clinical Oncology Group trial (JCOG0702)
T. Nishio, H. Shirato, M. Ishikawa, Y. Miyabe +6 more
2014Journal of Radiation Research13 citations Open access
Semantic Scholar
An overview of the medical-physics-related verification system for radiotherapy multicenter clinical trials by the Medical Physics Working Group in the Japan Clinical Oncology Group–Radiation Therapy Study Group
T. Nishio, M. Nakamura, Hiroyuki Okamoto, S. Kito +11 more
2020Journal of Radiation Research11 citations Open access
Semantic Scholar
Dummy-run for standardizing plan quality of intensity-modulated radiotherapy for postoperative uterine cervical cancer: Japan Clinical Oncology Group study (JCOG1402)
Hiroyuki Okamoto, N. Murakami, Fumiaki Isohashi, T. Kasamatsu +12 more
2019Radiation Oncology11 citations Open access
Semantic Scholar
Final report of survival and late toxicities in the Phase I study of stereotactic body radiation therapy for peripheral T2N0M0 non-small cell lung cancer (JCOG0702)
R. Onimaru, H. Onishi, G. Ogawa, M. Hiraoka +8 more
2018Japanese Journal of Clinical Oncology11 citations Open access
Semantic Scholar
Long-term follow-up of an RCT on Accelerated Radiotherapy vs. standard fractionated radiotherapy for early Glottic Cancer (JCOG0701A3).
T. Kodaira, Y. Kagami, R. Machida, N. Shikama +17 more
2023International Journal of Radiation Oncology, Biology, Physics10 citations Open access
Semantic Scholar
Randomized phase II trial of pemetrexed-cisplatin plus bevacizumab or thoracic radiotherapy followed by surgery for stage IIIA (N2) nonsquamous non-small cell lung cancer.
K. Takamochi, Kenji Suzuki, M. Tsuboi, S. Niho +4 more
2021Journal of Thoracic and Cardiovascular Surgery10 citations
Semantic Scholar
An end-to-end postal audit test to examine the coincidence between the imaging isocenter and treatment beam isocenter of the IGRT linac system for Japan Clinical Oncology Group (JCOG) clinical trials.
Y. Kumazaki, S. Ozawa, M. Nakamura, S. Kito +5 more
2018Physica medica (Testo stampato)9 citations
Semantic Scholar
Study protocol for JCOG1807C (DEEP OCEAN): a interventional prospective trial to evaluate the efficacy and safety of durvalumab before and after operation or durvalumab as maintenance therapy after chemoradiotherapy against superior sulcus non-small cell lung cancer
K. Aokage, M. Tsuboi, Y. Zenke, H. Horinouchi +12 more
2022Japanese Journal of Clinical Oncology8 citations Open access
Semantic Scholar
Comparison of intensity-modulated radiotherapy with the 5-field technique, helical tomotherapy and volumetric modulated arc therapy for localized prostate cancer
N. Kita, Y. Shibamoto, S. Takemoto, Y. Manabe +7 more
2022Journal of Radiation Research8 citations Open access
Semantic Scholar
Definitive chemoradiotherapy for squamous cell carcinoma of the esophagus: outcomes for borderline-resectable disease
S. Ishikura, T. Kondo, T. Murai, Y. Ozawa +4 more
2020Journal of Radiation Research8 citations Open access
Semantic Scholar
Randomized phase II trial of weekly dose-intensive chemotherapy or amrubicin plus cisplatin chemotherapy following induction chemoradiotherapy for limited-disease small cell lung cancer (JCOG1011).
I. Sekine, H. Harada, N. Yamamoto, M. Wakabayashi +10 more
2017Lung Cancer8 citations
Semantic Scholar
Feasibility study of chemoradiotherapy followed by amrubicin and cisplatin for limited‐disease small cell lung cancer
I. Sekine, M. Sumi, M. Satouchi, K. Tsujino +8 more
2016Cancer Science8 citations Open access
Semantic Scholar
Definitive radiotherapy for head and neck squamous cell carcinoma: update and perspectives on the basis of EBM.
T. Kodaira, Y. Nishimura, Y. Kagami, Y. Ito +3 more
2015Japanese Journal of Clinical Oncology8 citations
Semantic Scholar
Survey of advanced radiation technologies used at designated cancer care hospitals in Japan.
N. Shikama, K. Tsujino, Katsumasa Nakamura, S. Ishikura
2014Japanese Journal of Clinical Oncology8 citations
Semantic Scholar
Plan quality association between dummy run and individual case review in a prospective multi-institutional clinical trial of postoperative cervical cancer patients treated with intensity-modulated radiotherapy: Japan Clinical Oncology Group study (JCOG1402).
Hiroyuki Okamoto, N. Murakami, Fumiaki Isohashi, T. Kasamatsu +11 more
2023Radiotherapy and Oncology7 citations Open access
Semantic Scholar
Role of stereotactic body radiotherapy for early‐stage non‐small‐cell lung cancer in patients borderline for surgery due to impaired pulmonary function
N. Tomita, K. Okuda, N. Kita, M. Niwa +5 more
2022Asia-Pacific Journal of Clinical Oncology7 citations
Semantic Scholar
A Phase II Trial of Stereotactic Body Radiation Therapy for Operable T1N0M0 Non-Small Cell Lung Cancer; Japan Clinical Oncology Group (JCOG0403); Long Term Follow-up Results
Y. Nagata, M. Hiraoka, T. Shibata, H. Onishi +6 more
2018International Journal of Radiation Oncology, Biology, Physics7 citations
Semantic Scholar
Inter-institutional survival heterogeneity in chemoradiation therapy for esophageal cancer: exploratory analysis of the JCOG0303 study.
Y. Hamamoto, J. Mizusawa, H. Katayama, Kenichi Nakamura +8 more
2016Japanese Journal of Clinical Oncology7 citations Open access
Semantic Scholar
A multi-institutional randomized phase III study comparing weekly carboplatin plus nab-paclitaxel and daily low-dose carboplatin as regimens for concurrent chemoradiotherapy in elderly patients with unresectable locally advanced non-small cell lung cancer: Japan Clinical Oncology Group Study JCOG191
Ryohei Shimoyama, S. Omori, S. Nomura, H. Kenmotsu +8 more
2021Japanese Journal of Clinical Oncology6 citations Open access
Semantic Scholar
Prognostic Value of Epithelial Cell Adhesion Molecules in T1‐2N0M0 Glottic Cancer
N. Murakami, T. Mori, R. Machida, T. Kodaira +15 more
2020The Laryngoscope6 citations
Semantic Scholar
A multi-institutional randomized phase III trial comparing postoperative radiotherapy to observation after adjuvant chemotherapy in patients with pathological N2 Stage III non-small cell lung cancer: Japan Clinical Oncology Group Study JCOG1916 (J-PORT study).
Ryohei Shimoyama, K. Nakagawa, S. Ishikura, M. Wakabayashi +6 more
2021Japanese Journal of Clinical Oncology5 citations
Semantic Scholar
Multicenter Prospective Study of Stereotactic Body Radiotherapy for Untreated Solitary Primary Hepatocellular Carcinoma: The STRSPH Study
Tomoki Kimura, A. Takeda, S. Ishikura, K. Ariyoshi +9 more
2019International Journal of Radiation Oncology, Biology, Physics5 citations Open access
Semantic Scholar
Single-arm confirmatory trial of postoperative concurrent chemoradiotherapy using intensity modulated radiation therapy for patients with high-risk uterine cervical cancer: Japan Clinical Oncology Group study (JCOG1402).
N. Murakami, Fumiaki Isohashi, Y. Hasumi, T. Kasamatsu +8 more
2019Japanese Journal of Clinical Oncology5 citations
Semantic Scholar

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M. Hiraoka×12
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M. Hiraoka — researcher profile on SciRah
Y. Nishimura×12
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Y. Ito×9
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T. Shibata×8
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