Masaki Kokubo

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Masaki Kokubo

Publications by authors named "Masaki Kokubo"

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65Publications

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A feasibility study of independent verification of dose calculation for Vero4DRT using a Clarkson-based algorithm.

Med Dosim 2018 Jan 25. Epub 2018 Jan 25.

Particle Therapy Division, Research Center for Innovative Oncology, National Cancer Center, Chiba 277-8577, Japan. Electronic address:

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January 2018

Modifying the planning target volume to optimize the dose distribution in dynamic conformal arc therapy for large metastatic brain tumors.

Jpn J Radiol 2017 Jun 6;35(6):335-340. Epub 2017 Apr 6.

Department of Radiation Oncology, Kobe City Medical Center General Hospital, 2-1-1 Minatojima-Minamimachi Chuo-ku, Kobe, 6500047, Japan.

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June 2017

Development of a four-dimensional Monte Carlo dose calculation system for real-time tumor-tracking irradiation with a gimbaled X-ray head.

Phys Med 2017 Mar 16;35:59-65. Epub 2017 Feb 16.

Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.

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March 2017

Could Non-contrast 3DCT-Venography Be the First-Choice Diagnostic Imaging Modality for the Treatment of Varicose Vein?

Ann Vasc Dis 2016 25;9(1):8-14. Epub 2016 Jan 25.

Department of Surgery, Public Memuro Hospital, Kasai-gun, Hokkaido, Japan.

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April 2016

Target localization errors from fiducial markers implanted around a lung tumor for dynamic tumor tracking.

Phys Med 2015 Dec 10;31(8):934-941. Epub 2015 Jul 10.

Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Japan.

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December 2015

Dynamic tumor-tracking radiotherapy with real-time monitoring for liver tumors using a gimbal mounted linac.

Radiother Oncol 2015 Dec 8;117(3):496-500. Epub 2015 Sep 8.

Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, Japan.

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December 2015

Transformation to large cell neuroendocrine carcinoma as acquired resistance mechanism of EGFR tyrosine kinase inhibitor.

Lung Cancer 2015 Nov 8;90(2):364-8. Epub 2015 Sep 8.

Departments of Respiratory Medicine, Kobe City Medical Centre General Hospital, Kobe, Japan.

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November 2015

Stereotactic Body Radiotherapy for Synchronous Primary Lung Cancer: Clinical Outcome of 18 Cases.

Clin Lung Cancer 2015 Sep 31;16(5):e91-6. Epub 2014 Dec 31.

Division of Radiation Oncology, Institute of Biomedical Research and Innovation, Kobe, Japan.

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September 2015

Current status and outcomes of patients developing PSA recurrence after prostatectomy who were treated with salvage radiotherapy: a JROSG surveillance study.

J Radiat Res 2015 Jul 24;56(4):750-6. Epub 2015 Apr 24.

Department of Radiation Oncology and Particle Therapy, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa City, Chiba, 277-8577, Japan.

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July 2015

Multiple primary malignancies in patients with non-small cell lung cancer.

Intern Med 2015 ;54(3):325-31

Division of Integrated Oncology, Institute of Biomedical Research and Innovation, Japan.

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June 2015

Development of a dose verification system for Vero4DRT using Monte Carlo method.

J Appl Clin Med Phys 2014 Nov 8;15(6):4961. Epub 2014 Nov 8.

Department of Radiation Oncology and Image-applied Therapy, Kyoto University.

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November 2014

Development of an expanded-field irradiation technique using a gimbaled x-ray head.

Med Phys 2014 Oct;41(10):101706

Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.

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October 2014

Adjuvant radiotherapy after prostatectomy for prostate cancer in Japan: a multi-institutional survey study of the JROSG.

J Radiat Res 2014 May 1;55(3):533-40. Epub 2014 Jan 1.

Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo 105-8461, Japan.

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May 2014

Intra- and interfractional variations in geometric arrangement between lung tumours and implanted markers.

Radiother Oncol 2014 Mar 20;110(3):523-8. Epub 2014 Feb 20.

Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Japan.

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March 2014

Geometric and dosimetric accuracy of dynamic tumor-tracking conformal arc irradiation with a gimbaled x-ray head.

Med Phys 2014 Mar;41(3):031705

Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.

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March 2014

Predictive uncertainty in infrared marker-based dynamic tumor tracking with Vero4DRT.

Med Phys 2013 Sep;40(9):091705

Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.

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September 2013

Feasibility evaluation of a new irradiation technique: three-dimensional unicursal irradiation with the Vero4DRT (MHI-TM2000).

J Radiat Res 2013 Mar 24;54(2):330-6. Epub 2012 Aug 24.

Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.

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March 2013

Positioning accuracy of a new image-guided radiotherapy system.

Med Phys 2011 May;38(5):2535-41

Department of Radiation Oncology and Image-Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto 6068507, Japan.

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May 2011

Surgical treatment of local recurrence after stereotactic body radiotherapy for primary and metastatic lung cancers.

J Thorac Oncol 2010 Dec;5(12):2003-7

Department of Thoracic Surgery, Kobe City Medical Center General Hospital, Kobe, Japan.

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December 2010

Initial validations for pursuing irradiation using a gimbals tracking system.

Radiother Oncol 2009 Oct 21;93(1):45-9. Epub 2009 Aug 21.

Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan.

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October 2009

Incidence of brain atrophy and decline in mini-mental state examination score after whole-brain radiotherapy in patients with brain metastases: a prospective study.

Int J Radiat Oncol Biol Phys 2008 Nov 19;72(4):1168-73. Epub 2008 May 19.

Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.

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November 2008

Development of a new concept automatic frequency controller for an ultrasmall C-band linear accelerator guide.

Med Phys 2007 Aug;34(8):3243-8

Medical Systems Administration Office, Mitsubishi Heavy Industries, Ltd., 10, Oye-cho Minato-ku, Nagoya, Aichi 455-8515, Japan.

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August 2007

Development of an ultrasmall C-band linear accelerator guide for a four-dimensional image-guided radiotherapy system with a gimbaled x-ray head.

Med Phys 2007 May;34(5):1797-808

Medical Systems Administration Office, Mitsubishi Heavy Industries, Ltd., 10, Oye-cho-Minato-ku, Nagoya, Aichi 455-8515 Japan.

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May 2007

Bilateral breast-conserving therapy for bilateral breast cancer: results and consideration of radiation technique.

Breast Cancer 2005 ;12(2):135-9

Department of Therapeutic Radiology and Oncology Graduate School of Medicine, Kyoto University 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan.

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September 2005

Feasibility of breast-conserving therapy for macroscopically multiple ipsilateral breast cancer.

Int J Radiat Oncol Biol Phys 2004 May;59(1):146-51

Department of Therapeutic Radiology and Oncology, Kyoto University Graduate School of Medicine, Kyoto, Japan.

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May 2004

A technique for noninvasive respiratory gated radiation treatment system based on a real time 3D ultrasound image correlation: a phantom study.

Med Phys 2004 Feb;31(2):245-50

Advanced Technology R&D Center, Mitsubishi Electric Corporation, 8-1-1 Tsukaguchi Hommachi Amagasaki 661-8661, Japan.

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February 2004

Evaluation of lung injury after three-dimensional conformal stereotactic radiation therapy for solitary lung tumors: CT appearance.

Radiology 2004 Jan 26;230(1):101-8. Epub 2003 Nov 26.

Department of Therapeutic Radiology and Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto 606-8507, Japan.

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January 2004

Clinical evaluation of dynamic arc conformal radiotherapy for paraaortic lymph node metastasis.

Radiother Oncol 2003 Apr;67(1):113-8

Department of Therapeutic Radiology and Oncology, Graduate School of Medicine, Kyoto University, Sakyo, 606-8507, Kyoto, Japan

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April 2003